*ARMY TM 10-1670-272-23&P

AIRFORCE TO 14D1-2-463-2
MARINE CORPS TM 04296C-23&P/1
NAVY NAVSEA-SS400-AS-MMI-010

TECHNICAL MANUAL

UNIT AND DIRECT SUPPORT (DS)

MAINTENANCE MANUAL
(INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST)
FOR

PARACHUTE, PERSONNEL TYPE:

35-FOOT DIAMETER, MC1-1B

TROOP BACK PARACHUTE ASSEMBLY
NSN 1670-00-598-0751

PARACHUTE, PERSONNEL TYPE:

35-FOOT DIAMETER, MC1-1E
TROOP BACK PARACHUTE ASSEMBLY
NSN 1670-01-499-6573

DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited.

* This manual supersedes TM 10-1670-272-23&P, dated 16 September 1988

HEADQUARTERS, DEPARTMENT OF THE ARMY

Change 1 30 NOVEMBER 2003 1 FEBRUARY 2002

 TM 10-1670-272-23&P

WARNING SUMMARY

This warning summary contains general warnings and hazardous material warnings that must be
understood and applied during operation and maintenance of the equipment. Failure to observe
these precautions could result in serious injury or death to personnel.

WARNING

DEATH could result if inspections are not performed as specified in

this manual. Perform all inspections as specified.

WARNING

For First Aid Treatment, refer to FM 4-25.11.

WARNING

Exercise extreme care when using petroleum products to destroy

equipment by fire, as these materials are highly flammable.
Improper handling may cause injury to personnel.

WARNING

Deployment bag will be given a complete inspection, including static

line and that portion of the static line that is covered by the static line
sleeve. Failure to do so could result in serious injury or death to the
parachutist.

WARNING

Failure to detect areas of damage may result in malfunction of the

parachute and injury, or loss of life, to personnel.

a
 TM 10-1670-272-23&P

WARNING

Dress each gore section and the anti-inversion net to insure no

foreign material is present. If foreign material is present, repeat fine
dress procedures. Failure to do so could cause serious injury of
death to the parachutist.

WARNING

Inspect the deployment bag and the entire static line, including that
portion under the sleeve. Failure to do so may cause serious injury
or death to personnel.

WARNING

The limitations prescribed for the parachute canopy patching will be

stringently adhered to under all circumstances and without any
deviations. Failure to do so may result in death or serious injury to
personnel.

b
 TM 10-1670-272-23&P

CHANGE HEADQUARTERS,
NO. 2 DEPARTMENT OF THE ARMY
WASHINGTON, D.C., 31 AUGUST 2005

TECHNICAL MANUAL

UNIT AND DIRECT SUPPORT (DS) MAINTENANCE MANUAL

(INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST)
FOR

PARACHUTE, PERSONNEL TYPE:

35-FOOT DIAMETER, MC1-1B

TROOP BACK PARACHUTE ASSEMBLY
NSN 1670-00-598-0751

PARACHUTE, PERSONNEL TYPE:

35-FOOT DIAMETER, MC1-1E
TROOP BACK PARACHUTE ASSEMBLY
NSN 1670-01-499-6573

DISTRIBUTION STATEMENT A: - Approved for public release; distribution is unlimited.

TM 10-1670-272-23&P, dated 1 February 2002, is changed as follows:

1. File this sheet in the front of the manual for reference.

2. This change implements the Army Maintenance Transformation and changes the Maintenance Allocation Chart
(MAC) to Support Field and Sustainment Maintenance.

3. New or updated text is indicated by a vertical bar in the outer margin.

4. Added illustrations are indicated by a vertical bar adjacent to the figure number. Changed illustrations are
indicated by a miniature hand adjacent to the updated area and a vertical bar adjacent to the figure number.

5. Remove old pages and insert new pages as indicated below.

Remove Pages Insert Pages

A/(B Blank) A/(B Blank)
DA 2028

6. Replace the following work packages with their revised version.

Work Package Number

WP 0044 00
 TM 10-1670-272-23&P

By Order of the Secretaries of the Army, Air Force, and Navy (including the Marine Corps):
C2

PETER J. SCHOOMAKER
General, United States Army
Chief of Staff
Official:

SANDRA R. RILEY
Administrative Assistant to the
Secretary of the Army
0521615

MICHAEL E. RYAN
GENERAL, USAF
Chief of Staff

Official:
GEORGE T. BABBETT
General, USAF
Commander, Air Force Materiel Command

D.G. MORRAL
Rear Admiral, USN
Program Executive Officer
For Expeditionary Warfare
Naval Sea Systems Command

R.P. SHOCKEY
Director, Program Support
Marine Corps System Command

DISTRIBUTION:

To be distributed in accordance with initial distribution number (IDN) 252688 requirements for
TM 10-1670-272-23&P.
 TM 10-1670-272-23&P

CHANGE HEADQUARTERS, DEPARTMENT OF THE ARMY

NO. 1 WASHINGTON, DC, 30 NOVEMBER 2003

TECHNICAL MANUAL

UNIT AND DIRECT SUPPORT (DS) MAINTENANCE MANUAL

(INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST)
FOR

PARACHUTE, PERSONNEL TYPE:

35-FOOT DIAMETER, MC1-1B

TROOP BACK PARACHUTE ASSEMBLY
NSN 1670-00-598-0751

PARACHUTE, PERSONNEL TYPE:

35-FOOT DIAMETER, MC1-1E
TROOP BACK PARACHUTE ASSEMBLY
NSN 1670-01-499-6573

DISTRIBUTION STATEMENT A: - Approved for public release; distribution is unlimited.

TM 10-1670-272-23&P, 1 FEBRUARY 2002, is updated as follows:

1. File this sheet in front of the manual for reference.

2. This change is a result of corrected or added text, Materials and Part Numbers, National
Stock Numbers (NSN)s, and/or CAGEC codes and part numbers as well as an additional
model number.

3. A vertical bar in the outer margin of the page indicates a new or updated change.

4. Remove old pages and insert new pages as indicated below:

Remove Pages Insert Pages

Cover Cover
A/(B Blank) A/(B Blank)
i-ii i-ii
Electronic DA Form 2028 Instructions Electronic DA Form 2028 Instructions
Sample DA Form 2028 Sample DA Form 2028
DA Form 2028 DA Form 2028

5. Replace the following work packages with their revised version:

Work Package Number Work Package Number Work Package Number

WP 0001 00 WP 0031 00 WP 0049 00
WP 0002 00 WP 0032 00 WP 0050 00
WP 0008 00 WP 0045 00 WP 0051 00
WP 0009 00 WP 0046 00 WP 0052 00
WP 0010 00 WP 0047 00 WP 0053 00
WP 0011 00 WP 0048 00 WP 0055 00
WP 0056 00
By Order of the Secretaries of the Army, Air Force, and Navy (including the Marine Corps):

PETER J. SCHOOMAKER
General, United States Army
Official: Chief of Staff

JOEL B. HUDSON
Administrative Assistant to the
Secretary of the Army
0329301

MICHAEL E. RYAN
GENERAL, USAF
Chief of Staff

Official:
GEORGE T. BABBETT
General, USAF
Commander, Air Force Materiel Command

D.G. MORRAL
Rear Admiral, USN
Program Executive Officer
For Expeditionary Warfare
Naval Sea Systems Command

R.P. SHOCKEY
Director, Program Support
Marine Corps System Command

DISTRIBUTION:

To be distributed in accordance with initial distribution number (IDN) 252688 requirements for
TM 10-1670-272-23&P.
 TM 10-1670-272-23&P

INSERT LATEST CHANGED PAGES/WORK PACKAGES. DESTROY SUPERSEDED DATA.

LIST OF EFFECTIVE PAGES/WORK PACKAGES

NOTE: The portion of the text affected by the update is indicated by a vertical line in the outer margins of
the page. Updates to illustrations are indicated by miniature pointing hands or vertical lines in the
outer margins of the page in the area of the illustration changed. Zero in the “Change No.”
column indicates an original page or work package.

Dates of issue for the original manual and changed pages/work packages are:

Original 1 February 2002

Change 1 30 November 2003
Change 2 31 August 2005

TOTAL NUMBER OF PAGES FOR FRONT AND REAR MATTER IS 20. THE TOTAL NUMBER
OF WORK PACKAGES IS 58 CONSISTING OF THE FOLLOWING:

Change Change Change

Page/WP No. Page/WP No. Page/WP No.
No. No. No.
Front Cover 1 WP 0025 00 (2 pgs) 0 WP 0054 00 (2 pgs) 0
Warning 0 WP 0026 00 (4 pgs) 0 WP 0055 00 (2 pgs) 1
i – iii/(iv blank) 1 WP 0027 00 (4 pgs) 0 WP 0056 00 (4 pgs) 1
v/(vi blank) 0 WP 0028 00 (2 pgs) 0 WP 0057 00 (4 pgs) 0
Chp 1 title page 0 WP 0029 00 (4 pgs) 0 WP 0058 00 (2 pgs) 0
WP 0001 00 (6 pgs) 1 WP 0030 00 (14 pgs) 0 Index-1– Index-6 0
WP 0002 00 (8 pgs) 1 WP 0031 00 (16 pgs) 1 Back Cover 0
Chp 2 title page 0 WP 0032 00 (18 pgs) 1
WP 0003 00 (10 pgs) 0 Chp 4 title page 0
WP 0004 00 (4 pgs) 0 WP 0033 00 (4 pgs) 0
WP 0005 00 (2 pgs) 0 WP 0034 00 (2 pgs) 0
WP 0006 00 (8 pgs) 0 WP 0035 00 (2 pgs) 0
Chp 3 title page 0 WP 0036 00 (2 pgs) 0
WP 0007 00 (4 pgs) 0 WP 0037 00 (2 pgs) 0
WP 0008 00 (4 pgs) 1 WP 0038 00 (6 pgs) 0
WP 0009 00 (6 pgs) 1 WP 0039 00 (2 pgs) 0
WP 0010 00 (2 pgs) 1 WP 0040 00 (2 pgs) 0
WP 0011 00 (58 pgs) 1 WP 0041 00 (2 pgs) 0
WP 0012 00 (18 pgs) 0 WP 0042 00 (6 pgs) 0
WP 0013 00 (2 pgs) 0 Chp 5 title page 0
WP 0014 00 (2 pgs) 0 WP 0043 00 (4 pgs) 0
WP 0015 00 (2 pgs) 0 WP 0044 00 (8 pgs) 2
WP 0016 00 (2 pgs) 0 WP 0045 00 (8 pgs) 1
WP 0017 00 (2 pgs) 0 WP 0046 00 (4 pgs) 1
WP 0018 00 (4 pgs) 0 WP 0047 00 (6 pgs) 1
WP 0019 00 (2 pgs) 0 WP 0048 00 (4 pgs) 1
WP 0020 00 (2 pgs) 0 WP 0049 00 (4 pgs) 1
WP 0021 00 (4 pgs) 0 WP 0050 00 (4 pgs) 1
WP 0022 00 (2 pgs) 0 WP 0051 00 (4 pgs) 1
WP 0023 00 (4 pgs) 0 WP 0052 00 (4 pgs) 1
WP 0024 00 (6 pgs) 0 WP 0053 00 (4 pgs) 1

Change 2
A/(B Blank) USA
 *ARMY TM 10-1670-272-23&P
AIR FORCE TO 14D1-2-463-2
MARINE CORPS TM 04296C-23&P
NAVY NAVSEA SS400-AS-MMI-010
HEADQUARTERS
DEPARTMENT OF THE ARMY, AIR FORCE, NAVY,
AND HEADQUARTERS, U.S. MARINE CORPS
WASHINGTON, D.C., 1 February 2002

TECHNICAL MANUAL
UNIT AND DIRECT SUPPORT (DS)
MAINTENANCE MANUAL
(INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST)
FOR
PARACHUTE, PERSONNEL TYPE:

35-FOOT DIAMETER, MC1-1B

TROOP BACK PARACHUTE ASSEMBLY
NSN 1670-00-598-0751

35-FOOT DIAMETER, MC1-1E

TROOP BACK PARACHUTE ASSEMBLY
NSN 1670-01-499-6573

REPORTING ERRORS AND RECOMMENDING IMPROVEMENTS

ARMY
You can help improve this manual. If you find any mistakes or if you know of a way to improve the
procedures, please let us know. Mail your letter, DA Form 2028 (Recommended Changes to Publications
and Blank Forms), or DA Form 2028-2, located in the back of this manual directly to: Commander, US Army
Soldier, Biological and Chemical Command, ATTN: AMSSB-RIM-L (N), Kansas St., Natick, MA 01760-
5052. You may also submit your recommended changes by E-mail directly to:
<amssbriml@natick.army.mil>. A reply will be furnished directly to you. Instructions for sending electronic
2028 may be found at the back of this manual immediately preceding the hard copy 2028.

AIR FORCE
Reports by U.S. Air Force units should be submitted on AFTO Form 22 (Technical Order Publication
Improvement Report and Reply) and forwarded to the address prescribed above for the Army. An
information copy of the prepared AFTO Form 22 shall be furnished to WR-ALC/TILTA, 420 2ND Street, Suite
100, Robins AFB, GA 31098-1640.

MARINE CORPS
Marine Corps personnel submit NAVMC 10772 for to commander, ATTN: (Code 850), Marine Corps
Logistics Bases, 814 Radford Blvd., Albany, GA 31704-1128.

NAVY
Submit NAVSEA Form 4160/1 (REV 2-99) to Commander, NSDSA Code 5E30, NAVSURFCENDIV.
4363 Missile Way, Port Hueneme CA 93043-4307. A reply will be sent to you.

DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited.

*This manual supersedes TM 10-1670-272-23&P, dated 16 September 1988

i Change 1 30 November 2003

 TM 10-1670-272-23&P

TABLE OF CONTENTS

WP Sequence No.

WARNING SUMMARY

HOW TO USE THIS MANUAL

CHAPTER 1 – INTRODUCTORY INFORMATION

General Information............................................................................................................................ 0001 00

Equipment Description and Data........................................................................................................ 0002 00

CHAPTER 2 - OPERATOR MAINTENANCE INSTRUCTIONS

Service Upon Receipt ........................................................................................................................ 0003 00
Assembling the MC1-1B/MC1-1E Troop Back Parachute Assembly ................................................. 0004 00
Preventive Maintenance Checks and Services (PMCS), Introduction .............................................. 0005 00
Preventive Maintenance Checks and Services (PMCS) ................................................................... 0006 00

CHAPTER 3 – UNIT MAINTENANCE INSTRUCTIONS

Shakeout and Airing .......................................................................................................................... 0007 00

Cleaning and Drying .......................................................................................................................... 0008 00
Inspection .......................................................................................................................................... 0009 00
Salt-/Fresh-Water Contamination Test............................................................................................... 0010 00
Packing Procedures .......................................................................................................................... 0011 00
Sewing Procedures ............................................................................................................................ 0012 00
Searing and Waxing .......................................................................................................................... 0013 00
Marking and Restenciling .................................................................................................................. 0014 00
Bridle Loop ......................................................................................................................................... 0015 00
Orifice Edge Reinforcement ............................................................................................................... 0016 00
Vent Cap ............................................................................................................................................ 0017 00
Upper Lateral Band ........................................................................................................................... 0018 00
Radial Seam ...................................................................................................................................... 0019 00
Gore Sections..................................................................................................................................... 0020 00
Lower Lateral Band ........................................................................................................................... 0021 00
Pocket Band ...................................................................................................................................... 0022 00
V-Tabs .............................................................................................................................................. 0023 00
Anti-Inversion Net .............................................................................................................................. 0024 00
Suspension Line ................................................................................................................................ 0025 00
Control Line Bridle.............................................................................................................................. 0026 00
Control Line ........................................................................................................................................ 0027 00
Connector Link Assembly................................................................................................................... 0028 00
Risers ................................................................................................................................................ 0029 00
Deployment Bag ................................................................................................................................ 0030 00
Harness Assembly ............................................................................................................................ 0031 00
Pack Tray .......................................................................................................................................... 0032 00

Change 1 ii
 TM 10-1670-272-23&P

CHAPTER 4 – DIRECT SUPPORT MAINTENANCE INSTRUCTIONS

Sewing Procedures ........................................................................................................................... 0033 00

Searing and Waxing .......................................................................................................................... 0034 00
Marking and Restenciling .................................................................................................................. 0035 00
Vent Lines ......................................................................................................................................... 0036 00
Vent Cap ............................................................................................................................................ 0037 00
Gore Sections .................................................................................................................................... 0038 00
Radial Tape ....................................................................................................................................... 0039 00
Suspension Line ................................................................................................................................ 0040 00
Preparation for Storage ..................................................................................................................... 0041 00
Preparation for Shipment ................................................................................................................... 0042 00

CHAPTER 5 – SUPPORTING INFORMATION

References ........................................................................................................................................ 0043 00

Maintenance Allocation Chart (MAC) ................................................................................................ 0044 00
Repair Parts and Special Tools List (RPSTL), Introduction ............................................................... 0045 00
RPSTL – Group 00, MC1-1B/MC1-1E Troop Back Personnel Parachute ........................................ 0046 00
RPSTL – Group 01, Personnel Canopy With Net and Orifice............................................................ 0047 00
RPSTL – Group 02, Riser Extension ................................................................................................ 0048 00
RPSTL – Group 03, Standard Deployment Bag ................................................................................ 0049 00
RPSTL – Group 04, Universal Static Line ........................................................................................ 0050 00
RPSTL – Group 05, Personnel Parachute Harness .......................................................................... 0051 00
RPSTL – Group 06, Personnel Parachute Pack Tray........................................................................ 0052 00
RPSTL – Group 99, Bulk Materials ................................................................................................... 0053 00
Special Tools List ............................................................................................................................. 0054 00
National Stock Number Index ............................................................................................................ 0055 00
Part Number Index ............................................................................................................................ 0056 00
Expendable/Durable Supplies and Materials List .............................................................................. 0057 00
Illustrated List of Manufactured Items ............................................................................................... 0058 00

ALPHABETICAL INDEX................................................................................................................... INDEX 1

iii/(iv blank)
 TM 10-1670-272-23&P

HOW TO USE THIS MANUAL

In this manual, primary chapters appear in upper case/capital letters; work packages are presented in
numeric sequence, e.g., 0001 00; paragraphs within a work package are not numbered and are presented
in a titles format. For a first level paragraph, title all upper case/capital letters, e.g., FRONT MATTER
subordinate paragraph title will have the first letter of the first word of each principle word all upper
case/capital letters, e.g., Manual Organization and Page Numbering System. The location of additional
material that must be referenced is clearly marked. Illustrations supporting maintenance procedures/text
are located underneath, or as close as possible to, their referenced paragraph.

FRONT MATTER. Front matter consists of front cover, warning summary, title block, table of contents,
and how to use this manual page.

CHAPTER 1 - INTRODUCTION. Chapter 1 contains general information and equipment.

CHAPTER 2 - OPERATOR MAINTENANCE INSTRUCTIONS. Chapter 2 contains service upon receipt,

initial receipt, receipt of used parachute assembly, and preventive maintenance checks and services
information and instructions.

CHAPTER 3 – UNIT MAINTENANCE INSTRUCTIONS. Chapter 3 contains maintenance procedures

authorized at the unit level.

CHAPTER 4 – DIRECT SUPPORT MAINTENANCE INSTRUCTIONS. Chapter 4 provides maintenance

procedures authorized at the direct support level.

CHAPTER 5 - SUPPORTING INFORMATION. Chapter 5 contains references, expendable and durable

items list, maintenance allocation chart, repair parts and special tools list, national stock number index,
part number index, and illustrated list of manufactured items.

REAR MATTER. Rear matter consists of alphabetical index, DA Form 2028, authentication page, and
back cover.

Manual Organization and Page Numbering System. The manual is divided into five major chapters
that detail the topics mentioned above. Within each chapter are work packages covering a wide range of
topics. Each work package is numbered sequentially starting at page 1. The work package has its own
page-numbering scheme and is independent of the page numbering used by other work packages. Each
page of a work package has a page number of the for XXXX YY-ZZ where XXXX is the work package
number (e.g. 0010 is work package 10), YY is the revision number for that work package, and ZZ
represents the number of the page within that work package. A page number such as 0010 00-1/(2 blank)
means that page 1 contains information but page 2 of that work package has been intentionally left blank.

Finding Information. The table of contents permits the reader to find information in the manual quickly.
The reader should start here first when looking for a specific topic. The table of contents lists the topics
contained within each chapter and the work package sequence number where it can be found.

Example: If the reader were looking for instructions on Patching Radial Seam, which is a unit
maintenance topic, the table of contents indicates that unit maintenance information can be found in
chapter 3. Scanning down the listings for chapter 3, Radial Seam information can be found in
WP 0019 00 (Work Package 19).

An Alphabetical Index can be found at the back of the manual; specific topics are listed with the
corresponding work package number.

v/(vi Blank)
 TM 10-1670-272-23&P

CHAPTER 1

INTRODUCTORY INFORMATION

FOR

MC1-1B TROOP BACK PARACHUTE

MC1-1E TROOP BACK PARACHUTE
T
 TM 10-1670-272-23&P 0001 00

MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY

GENERAL INFORMATION

SCOPE
This Technical Manual provides Unit and Direct Support (DS) maintenance instructions for parachutes,
NSN 1670-00-598-0751 and NSN 1670-01-499-6573. These are 35-Foot Diameter Troop Back
Parachutes. This manual also provides a Repair Parts and Special Tools List (RPSTL), located in WP
0045 00 through WP 0053 00.

Canopy Standard
Deployment Bag

Universal Static
Line Deployment
Bag

Risers

Pack Tray

Harness

Equipment Name: MC1-1B Troop Back Parachute Assembly, 35-Foot Diameter, and MC1-1E Troop
Back Parachute Assembly, 35-Foot Diameter.

Purpose of Equipment: The parachute provides capability to safely deliver an airborne soldier, and
individual equipment, from an aircraft in flight, for a vertical assault on an enemy.

0001 00-1 Change 1

 TM 10-1670-272-23&P 0001 00

MAINTENANCE FORMS, RECORDS, AND REPORTS

Department of the Army forms and procedures used for equipment maintenance will be those prescribed
by DA PAM 738-750, The Army Maintenance Management System. Maintenance forms and records used
by Marine Corps personnel are prescribed by TM 4700-15/1.

REPORTING EQUIPMENT IMPROVEMENT RECOMMENDATIONS (EIR)

If the design of your MC1-1B/MC1-1E Troop Back Parachute Assembly needs improvement, let us know.
Send us an EIR. You, the user, are the only one who can tell us what you don’t like about your equipment.
Let us know why you don’t like the design or performance. Put it on an SF 368 (Product Quality Deficiency
Report). Mail it to: Commander, U.S. Army Soldier and Biological Chemical Command, ATTN: AMSSB-RIM-E
(N), Kansas Street, Natick, MA 01760-5052. Navy-Submit NAVSEA Form 4160/1 (REV 2-99) to Commander,
NSDSA Code 5E30, NAVSURFCENDIV, 4363 Missle Way, Port Hueneme, CA 93043-4307. A reply will be
furnished directly to you.

CORROSION PREVENTION AND CONTROL (CPC)

Corrosion Prevention and Control (CPC) of Army materiel is a continuing concern. It is important that any
corrosion problems with this item be reported so that the problem can be corrected and improvements can
be made to prevent the problem in future items.

While corrosion is typically associated with rusting of metals, it can also include deterioration of other
materials, such as rubber and plastic. Unusual cracking, softening, swelling, or breaking of these
materials may be a corrosion problem.

If a corrosion problem is identified, it can be reported using Standard Form SF 368, Product Quality
Deficiency Report. Use of keywords such as "corrosion, "rust," "deterioration," or "cracking" will ensure
that the information is identified as a CPC problem.

The form should be submitted to the address specified in DA PAM 738-750, Functional Users Manual for
the Army Maintenance Management System (TAMMS).

DESTRUCTION OF ARMY MATERIEL TO PREVENT ENEMY USE

GENERAL INFORMATION:
Objective. Methods of destruction used to inflict damage on air delivery equipment should make it
impossible to restore equipment to a usable-condition in a combat zone, by either repair or
cannibalization.

Authority. Destruction of air delivery equipment, that is in imminent danger of capture by an enemy, is a
command decision that must be made by a battalion or higher commander, or the equivalent.

Implementation plan. All units that possess air delivery equipment should have a plan for the
implementation of destruction procedures.

Training. All personnel who use or perform such functions as rigging, packing, maintenance, or storage
of air delivery equipment, should receive thorough training on air delivery equipment destruction
procedures and methods. The destruction methods demonstrated during training should be simulated.
Upon completion of training, all applicable personnel should be thoroughly familiar with air delivery
equipment destruction methods and be capable of performing destruction without immediate reference to
any publication.

SPECIFIED METHODS:
Specific methods of destroying Army materiel to prevent enemy use shall be by mechanical means, fire or
by use of natural surroundings.

Change 1 0001 00- 2

 TM 10-1670-272-23&P 0001 00

Destruction by Mechanical Means. Air delivery equipment metal assemblies, parts, and packing aids
shall be destroyed using hammers, bolt cutters, files, hacksaws, drills, screwdrivers, crowbars, or other
similar devices used to smash, break, bend or cut.

WARNING

Exercise extreme care when using petroleum products to destroy

equipment by fire, as these materials are highly flammable.
Improper handling may cause injury to personnel.

Destruction by Fire. Items that can be destroyed by fire shall be burned. The destruction of equipment
by use of fire is and effective method of destroying low-melting-point metal items (e.g., side rails, threaded
portions of nuts and bolts, and platforms). However, mechanical destruction should be completed first,
whenever possible, before initiating destruction by fire. When items to be destroyed are made of metal,
textile materials (or some comparable low combustible material) should be packed under and around the
items, then soaked with a flammable petroleum product and ignited. Proper concentration of equipment
that is suitable for burning will provide a hotter and more destructive fire.

Destruction by Use of Natural Surroundings. Small vital parts of assemblies, that are easily
accessible, may be disposed of as follows: Disposal or denial of equipment to an enemy may be
accomplished through use of natural surroundings. Accessible vital parts of assemblies may be removed
and scattered through dense foliage, buried in dirt or sand, or thrown into a lake, stream, or other body of
water. Total submersion of equipment in a body of water will provide water damage as well as
concealment. Salt water will inflict extensive damage to air delivery equipment.

PREPARATION FOR STORAGE AND SHIPMENT

For storage, refer to TM 10-1670-201-23/T.O. 13C-1-41/NAVAIR 13-1-17, and WP 0041 00 of this
manual; for shipment, refer to WP 0042 00 of this manual.

WARRANTY INFORMATION
The MC1-1B/MC1-1E Troop Back Parachute Assembly does not contain warranty provisions.

NOMENCLATURE CROSS-REFERENCE LIST

Common Name Official Nomenclature

MC1-1B MC1-1B Troop Back Parachute Assembly, 35-Foot Diameter

MC1-1E MC1-1E Troop Back Parachute Assembly, 35-Foot Diameter

USL Universal Static Line

LIST OF ACRONYMS AND ABBREVIATIONS

BOI Basis of Issue

CAGEC Commercial and Government Entity Code

0001 00- 3 Change 1

 TM 10-1670-272-23&P 0001 00

LIST OF ACRONYMS AND ABBREVIATIONS - Continued

cm. Centimeter

CPC Corrosion Prevention and Control

DA Department of the Army

DS Direct Support

Dtd Dated

EA Each

EIR Equipment Improvement Recommendation

EDS Electrostatic Sensitive Discharge

F Fahrenheit

FSCM Federal Supply Code for Manufacturer

FSC Federal Supply Classification

ft. Feet

in. Inches

ltrs Liters

LG Long

Lbs Pounds

MAC Maintenance Allocation Chart

MTOE Modified Table of Organization and Equipment

MTG Mounting

MWO Modification Work Order

NF National Fine (Thread)

NIIN National Item Identification Number

No. Number

NSN National Stock Number

OD Olive Drab

OG Olive Green

oz. Ounces

Change 1 0001 00- 4

 TM 10-1670-272-23&P 0001 00

LIST OF ACRONYMS AND ABBREVIATIONS - Continued

PMCS Preventive Maintenance Checks and Services

psi Pounds per square inch

PQDR Product Quality Deficiency Report

RPSTL Repair Parts and Special Tools List

SMR Source, Maintenance and Recoverability

TAMMS The Army Maintenance Management System

TB Technical Bulletin

TMDE Test Measurement and Diagnostic Equipment

UOC Usable on Code

USL Universal Static Line

WP Work Package

SAFETY, CARE AND HANDLING

The following subparagraphs summarize the safety, care, and handling requirements for the parachute
assembly.

Safety. Use care in handling packed parachutes as exposed metal parts could cause painful injuries.

Care and Handling. Every effort shall be made to protect the parachute from weather elements, dust,
dirt, oil, grease, and acid. An unpacked parachute shall be placed in an aviator kit bag. When available,
an environmentally controlled building will be used to store parachutes. Parachutes shall be stored in a
dry, well-ventilated location and protected from pilferage, dampness, fire, dirt, insects, rodents, and direct
sunlight.

COMMON TOOLS AND EQUIPMENT

For authorized common tools and equipment, refer to the Modified Table of Organization and Equipment
(MTOE) applicable to your unit.

SPECIAL TOOLS, TEST MEASUREMENT AND DIAGNOSTIC EQUIPMENT (TMDE), AND SUPPORT
EQUIPMENT
Special Tools, TMDE and support equipment are not required.

REPAIR PARTS AND SPECIAL TOOLS LIST (RPSTL)

Repair parts are listed and illustrated in WP 0045 00 – WP 0053 00 of this manual.

END OF WORK PACKAGE

0001 00- 5 /(6 Blank) Change 1

 TM 10-1670-272-23&P 0002 00
MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
EQUIPMENT DESCRIPTION AND DATA

EQUIPMENT CHARACTERISTICS, CAPABILITIES AND FEATURES

A summary of the characteristics, capabilities and features of the equipment is contained in the following
subparagraphs:

Characteristics. Provides a capability to deliver an airborne soldier, and individual equipment, from an
aircraft in flight, for a vertical assault on the enemy.

Capabilities and Features:

Limited in operation to winds of 13-knots at
surface.
Capable of supporting 360-pounds.
Highly portable.
Complete assembly weight: 29-pounds.
Canopy assembly. Deployment bag. Pack tray.
Components of the system:
Harness assembly. Risers. Universal Static Line.

LOCATION AND DESCRIPTION OF MAJOR COMPONENTS

The following subparagraphs contain locations and descriptions of major components.

Canopy. The MC1-1B/MC1-1E parachute canopy has a 3¾-inch mesh anti-inversion net attached to the
skirt of the canopy. The net extends 18-inches below the canopy skirt. The canopy has two vent line
centering loops and an orifice cut out to give forward movement for directional control.

Canopy

Orifice

Lower
Anti-Inversion Net Lateral
Band
Suspension Lines

Connector Link
Suspension Line Numbering
Viewed From Connector Links
(As Shown In Proper Layout)

0002 00-1 Change 1

 TM 10-1670-272-23&P 0002 00

Pack Tray. The pack tray holds the MC1-1B/MC1-1E parachute, packed in the deployment bag, to the
parachute harness. It is constructed of 7.25-ounce nylon duck. The waistband is located near the bottom
of the pack tray.

NOTE

Waistband extension may be required.

Pack Closing Loop

Diagonal
Backstrap
Diagonal
Keeper Static Line
Backstrap
Retainer Slack Retainer

Outer Static Line

Stow Bar Outer Static Line
Stow Bar

Inner Static
Line Stow Bar

Inner Static line

Stow Bar

Pack Closing
Loop

Waistband

Waistband End
Adjuster Panel

Horizontal Backstrap
Retainer
End Flap

Change 1 0002 00-2

 TM 10-1670-272-23&P 0002 00

NOTE

The US Navy is authorized to use deployment bag (P/N 56D6276-4).

Deployment Bag. The MC1-1B/MC1-1E parachute is packed in the deployment bag. The deployment
bag is constructed of 8.2-ounce cotton sateen cloth with a static line attached. These bags differ in the
attachment of a static line, standard and Universal Static Line (USL).

Standard Deployment Bag.

USL (Continuous)

USL Extension
(Continuous)

Universal Static Line Deployment Bag.

0002 00-3 Change 1

 TM 10-1670-272-23&P 0002 00

Harness Assembly. The parachute is attached to the harness assembly, which secures the parachute to
the paratrooper before the jump and during the descent. The MC1-1B/MC1-1E parachute harness
assembly is equipped with one chest and two leg straps, and secured with quick-ejector snaps. The
female portion of the MC1-1B/MC1-1E canopy release has a cable loop-type release. There are three
ejector snap pads for the ejector snaps, and two canopy release pads for the canopy release. There are
three ejector snap pads for the ejector snaps.

NOTE

The troop harness assembly, equipped with equipment rings, will

replace the MC1-1B/MC1-1E parachute harness assembly through
attrition. Also, the nylon pack tray, with waistband located in the
lower position, will replace the cotton and nylon pack trays, with
waistband located in the center of the pack tray, through attrition.
During the transition period, numerous configurations may occur.
Interchangeability of components is permitted, provided shelf service
life and serviceability criteria are met.

Change 1 0002 00-4

 TM 10-1670-272-23&P 0002 00

Riser Assembly. Each of the two riser assemblies is 30-inches long (finished length) and constructed of
type XIII nylon webbing, with the male canopy release fitting permanently attached. The two ends of each
riser are attached to the suspension line connector links.

NOTE

The standard MC1-1B/MC1-1E riser assembly will be modified to

assist in item identification, using the procedure described in WP
0003 00, SERVICE UPON RECEIPT.

0002 00-5 Change 1

 TM 10-1670-272-23&P 0002 00

EQUIPMENT DATA
The following list summarizes the specific capabilities and limitations of the equipment, and other critical
data needed by the unit and direct support (DS) maintenance personnel for maintenance of the
MC1-1B/MC1-1E Troop Back Parachute Assembly.

Weight (packed for airdrop) 29-lbs. (approx.)

CANOPY ASSEMBLY
Shape Parabolic
Diameter (nominal) 35-feet
Diameter of skirt 24.5-feet
No. of gores 30
No. of sections per gore 4 or 5
Gore material 1.1-oz. Ripstop nylon parachute cloth
No. of radial tapes 30
No. of control lines 2
No. of control line bridles 2
Control line material Type II, nylon cord
Control line bridle material Type II, nylon cord
5
Control line toggle material /8-in. diameter, hardwood dowel
Control line guide ring Reefing ring (PS27762-1)
9
Guide ring retaining strap material /16-in. wide, type I, nylon webbing
Orifice 100.04 sq. ft. (perimeter)
9
Radial tape material /16-in., type I nylon webbing
No. of vent lines 15
Vent line material Type II, nylon cord
No. of suspension lines 30
Suspension line material Type II, nylon cord
No. of V-tabs 30
No. of pocket bands 15
No. of connector links 4 L-bar
Anti-inversion net 3¾-in. mesh

PACK TRAY
Panel material Nylon duck, 7.25-oz.

Change 1 0002 00-6

 TM 10-1670-272-23&P 0002 00

HARNESS ASSEMBLY
Strap material Type XIII, nylon webbing

DEPLOYMENT BAG
Bag material 8.2-oz. Cotton sateen cloth

RISER ASSEMBLIES (2)

Material Type XIII, nylon webbing
Length 30-in.

UNIVERSAL STATIC LINE

Material Tube edge
5-feet 10-inches (± 1/2-inch) and
Lengths
14-feet 10-inches (± 1-inch)

UNIVERSAL STATIC LINE SNAP HOOK (1)

Material Chromium Molybdenum
Length 6-inches

END OF WORK PACKAGE

0002 00-7/(8 Blank) Change 1

 TM 10-1670-272-23&P

CHAPTER 2
OPERATOR MAINTENANCE INSTRUCTIONS
FOR
MC1-1B TROOP BACK PARACHUTE ASSEMBLY
MC1-1E TROOP BACK PARACHUTE ASSEMBLY
 TM 10-1670-272-23&P 0003 00

MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY

SERVICE UPON RECEIPT

THIS TASK COVERS:

• Overview
• Initial Receipt
• Receipt of Used Parachute
• After-Use Receipt

INITIAL SETUP:

Materials/Parts Personnel Required

Tape Lacing and Tying (Item 42, WP 0056 00) 92R (10) Parachute Rigger

Tools Equipment Condition

Needle, Tacking (Item 19, WP 0043 00) All equipment shall be serviceable and ready for
use.

OVERVIEW

This wok package contains information necessary to maintain the MC1-1B/MC1-1E Troop Back
Parachute, on the unit and direct support maintenance levels, in accordance with the Maintenance
Allocation Chart (MAC) for the equipment. It includes the following:

1. Procedures for processing a new or used parachute assembly upon receipt.

2. Assembly of components prior to packing.

3. Preventive maintenance procedures to ensure continued serviceability of all components.

4. As required inspections and maintenance, procedures performed prior to packing, such as shakeout
and airing, and cleaning and drying, and salt-water contamination tests.

5. Detailed packing procedure.

6. Repair methods and repair, or replacement, procedures for all components of the parachute
assembly.

INITIAL RECEIPT
The following describes the procedures for processing parachutes upon initial receipt.

General Procedures for Air Delivery Equipment. When air delivery equipment is initially procured from
a supply source and issued to a using unit, the item(s) will be unpacked from the shipping container(s) and
inspected by a qualified parachute rigger (MOS 92R). The inspection preformed will be a technical/
rigger-type inspection and will be conducted as outlined in the Preventive Maintenance Checks and
Services (PMCS) procedures (WP 0006 00). Upon completion of the inspection, the item(s) will be tagged
as prescribed in DA PAM 738-751. Serviceable equipment may then be entered either into storage or into
use in airdrop operations, as applicable. An unserviceable item will be held and reported, in accordance
with DA PAM 738-750/ MCO 4855.10(MC).

Inspection Personnel. Personnel other than parachute rigger personnel may assist in the unpacking
process of initially received parachutes, as directed by the local air delivery equipment maintenance
officer. However, the maintenance officer will ensure the entire unpacking effort is conducted under the
direct supervision of a qualified rigger (MOS 92R).

0003 00-1
 TM 10-1670-272-23&P 0003 00

Configuration/ Condition. Acceptance of new equipment from a manufacturer is based upon

inspections made of sample lots that have been randomly selected in accordance with military standards.
It is incumbent upon the using activity personnel to bear this in mind whenever equipment is first placed in
service. Changes will sometimes evolve from the original equipment design and sometimes contractors
are authorized deviations in material and construction techniques. Air delivery equipment that has been in
the field cannot be expected to meet exacting manufacturing specifications; however, the equipment
should closely reflect desired design characteristics. Since repairs, modifications, and/or changes can
alter or detract from the configuration originally desired, such equipment shall be airworthy, safe, of the
desired configuration, and adequate for intended use.

Marking Parachutes. Prior to being placed into service, personnel parachutes that have had no previous
use will be marked to reflect the date of entry into service. The marking will be made on the canopy
information data block by stenciling the lettering in ½-inch characters, using the marking and restenciling
repair procedures (WP 0014 00). Other applicable parachute components will be marked adjacent to
existing data. The stenciled data will appear as IN-SVC followed by the date, which will indicate the month
and calendar year, such as "Jan. 02". Ensure the added marking does not infringe upon, or obliterate, any
original data on the information data block.

Marking Risers. Prior to being placed into service, the risers will be marked to reflect placed in service
and identified as a MC1-1B/MC1-1E. Mark each riser with two turns yellow; ½ -inch pressure sensitive
adhesive tape, around each riser assembly, centered on the confluence wrap.

Position Control Lines. For new MC1-1B/MC1-1E parachute being placed in service and in-serviced
parachutes with less than six jumps, position control lines as follows:

1. Trace each control line bridle and the attached control line from the point of attachment to the canopy
to the free-end of the control line.

2. Pass the control line free-end from the top, through cannel guide ring (located on the inside of each
rear riser), and further past the control line free-end, through a wood toggle (Refer to WP 0027 00 for
toggle construction details, if required).

3. Position the toggle against the bottom of the guide ring and, while holding the toggle in position, pull the
control line free-end taut until the control line tension equals that of the suspension lines. Move each
toggle three inches from the channel guide ring. While holding each control line in position, place one-
inch wide masking tape on the control line just above the toggle, wrapping the tape around the riser
once. Do not remove this tape.

NOTE

Do not remove the one-inch masking tape from the riser.

4. Make two overhand knots in each control line against the bottom of each toggle. The remaining free
end of each control line from the second overhand knot is to measure five inches. Then make the third
overhand knot in the free-end. Trim the control line free-end at a point ½-inch below the third overhand
knot.

5. For parachutes with more than five jumps, position the control line toggles according to the following
procedure.

0003 00-2
 TM 10-1670-272-23&P 0003 00

a. Undo the three overhand knots in each control line free-end.

b. Pull both control line free-ends until control line tension equals that of the suspension lines.

c. Follow the procedures given in WP 0027 00.

6. Annotation will be made in the note section of the parachute log record that the control line toggle
adjustment procedure has been performed.

Parachute Log Record. The Army Parachute Log Record, DA From 3912 and AFTO 391, is a historical
maintenance document, which accompanies the parachute canopy and pack assemblies through out the
period of service of the individual assembly. The log record provides a means of recording maintenance
actions performed on a parachute canopy assembly. Normally, a log record is initiated and attached to a
pack upon receipt by a using unit. However, if the item is subjected to alteration or modification by a
maintenance activity during the interim period from date of manufacture to receipt by a using unit, the log
record will be prepared by the activity performing the maintenance function. Once initiated, a log record
will be attached to and contained in an affixed parachute log record/inspection date pocket until such time
as the parachute canopy assembly is destroyed or rendered unfit for further use or repair. Additionally,
should an item that requires a log record be transferred from one unit to another, the log record for the
parachute assembly will accompany the item in the transfer action. A prepared log record will not be
removed or separated from a parachute, and especially a packed parachute, except as directed by the
local air delivery equipment maintenance activity officer. A log record which is illegible, lost, damaged,
soiled, or precludes further entries due to lack of space will be replaced upon the next repack or
inspection, as applicable, with a serviceable item from stock.

NOTE

US Navy utilizes NAVWPNCEN or NAWCWPCNS CL 13512/11,

Premeditated Parachute Record.

Installing Attaching Tie.

Install attaching tie as follows:

1. Cut a 30-inch length of tape, lacing, and tying (supertack) and double the lacing length.

2. Pass the looped end of the double lacing length around the centerfold of the log record and form a slip
loop on the outside at the log record top.

Forming Slip Loop On Log Record Outside

0003 00-3
 TM 10-1670-272-23&P 0003 00

3. Pass the lacing length running ends through the corner attaching hole from the front cover of the
log record.

Passing Lacing Loose Ends Through Corner Attaching Hole

4. Ensure the running ends are routed over that part of the lacing length located along the log record
centerfold.

Routing Lacing Loose End Through Log Record Centerfold

5. Complete the attaching tie by making a half hitch on top of the slip loop made in 2., above.

6. Thread one running end of the log record attachment tie in a tacking needle and pass the tacking
needle with attached lacing end through the edge of the applicable parachute log record/inspection
data pocket.

0003 00-4
 TM 10-1670-272-23&P 0003 00

7. Remove the lacing end from the tacking needle and make a finished 10-inch-long log record attaching
loop by securing the two lacing ends together with an overhand knot.

HALF HITCH

Log Record Attachment Tie Completed

8. Insert the log record into the pocket and secure the record within the pocket using the pocket flap
and applicable type flap fastener.

Accomplishing a Log Record. Upon completion of the first technical/rigger-type inspection, the
individual performing the inspection will initially prepare a log record for an individual parachute or
applicable type parachute harness and accomplish subsequent record entries using the following
procedures:

NOTE

Log record book entries will be made with a suitable blue or black
marking ink pen that cannot be erased. Do not use felt tip markers
(smearing may occur).

1. Inside front cover. Using the information provided on the parachute canopy data block, make the
following entries on the inside front cover of the log record. Entries may be continued on the inside
of the back cover, if necessary.

0003 00-5
 TM 10-1670-272-23&P 0003 00

NOTE

A parachute canopy serial number is recorded in a log record as a

method for establishing control for maintenance, Equipment
Improvement Report (EIR) and Production Quality Deficiency Report
(PQDR) documentation, and to insure the correct original record is
reattached should the record become detached. A canopy serial
number will not be used for property accountability, except in test
projects or other special instances.

a. Serial number. Enter the parachute canopy assembly serial number.

b. Type. Enter the parachute type.

c. Part number. Enter the part number of the parachute canopy.

d. Date of Manufacture. Enter the month and year the parachute canopy was manufactured.

e. Manufacturer. Enter the name of the parachute manufacturer.

f. Canopy contract number. Enter the entire contract number specified for the parachute canopy

g. Station and unit. Enter the name of the station and the unit to which the parachute canopy
is currently assigned. When a parachute is transferred permanently to another station and/or unit
the original entry will be lined out and the name of the receiving station and/or unit will be entered.

2. Inside back cover. Entries may be continued on the inside back cover, if necessary.

3. Modification Work Order (MWO) compliance record page. When a modification is performed
on a parachute canopy, the following entries will be made on the MODIFICATION WORK ORDER
COMPLIANCE RECORD pages of the Log Record.

0003 00-6
 TM 10-1670-272-23&P 0003 00

a. MWO number. Enter the publication number and date of the Modification Work Order, which
describes the MWO (1, see illustration below).

b. MWO title. Enter a short, abbreviated title extracted from the MWO prescribing the work.

c. Modified by. Enter the last name of the individual who has performed the modification. If the
original log record for the parachute has been lost, and it has been ascertained through inspection
that a particular modification has been accomplished, the entry for this column will be C/W,
complied with (2, in the illustration detailed above), which signifies the applicable MWO has been
complied with.

d. Inspected by. The individual who accomplished the inspection required after modification will sign
this entry with last name only.

e. Unit. Enter the unit designation responsible for performing the MWO or in the event of a lost Log

Record, the unit to which the inspector is assigned.

f. Date. Enter the day, month, and year the modification work was completed.

4. Unit and Direct Support repair and inspection date. When a parachute canopy assembly is initially
received from a supply source and a technical/rigger-type inspection is performed, the inspection
accomplishment will be documented on the “Unit and Direct Support Maintenance Repair and
Inspection Data” page of the individual Parachute Log Record. Additional entries will also be made on
this page each time the canopy assembly is repaired or is administered an inspection in compliance
with a one-time inspection Technical Bulletin (TB). The page completion criteria is as follows:

a. Type of repair. Enter the type of repair, completion of initial inspection, repair
accomplishment, Technical Bulletin Inspection compliance.

b. Inspection by. The individual who accomplished the inspection required will sign this
entry with last name.

c. Unit. Enter the unit designation responsible for performing the type of repair.

d. Date. Enter the day, month, and year the repair was performed.

0003 00-7
 TM 10-1670-272-23&P 0003 00

5. Note page. A page is provided at the back of a parachute log record to accommodate
recording of additional data pertinent to the serviceability of a parachute canopy assembly.
This shall also include the month and year the item was placed in service.

NOTE

A parachute log record that is completely filled out, lost, illegible, or

in an otherwise unserviceable condition, will be replaced with a
serviceable log record.

6. Replacing a filled out or unserviceable log record.

a. Using a suitable blue or black marking device, enter NEW BOOK on the outside front cover of the
replacement log record.

b. Transcribe the information from the inside front cover of the original log record to the inside front
cover of the replacement log record. If the original date is illegible or missing, use the canopy
information date block to collect the required data.

c. In the replacement log record, transcribe the initial and last entry made on the Jump, Inspection,
and Repack Data page of the original log record.

d. Transcribe all date from the remaining pages of the original log record, to the appropriate pages of
the replacement log record.

e. After all original data has been transcribed, destroy the original log record.

7. Replace a lost log record.

NOTE

Any time a log record is discovered missing from a parachute, a

replacement log record will be initiated during repack or inspection,
as applicable.

0003 00-8
 TM 10-1670-272-23&P 0003 00

a. Using a suitable blue or black marking device, enter NEW BOOK at the top of the inside front cover of
the replacement log record.

b. Accomplish the log record inside front cover as prescribed in Accomplishing a Log Record, above.

c. The age life of the canopy will be obtained from the date placed in service (initial) and other
applicable data on the Jump, Inspection, and Repack Data page of the log record, as detailed
above. Enter IN, if the data placed in service is known. If not known, enter UNK.

d. If it can be ascertained by inspection that a previous MWO or TB has been complied with,
applicable entries will be made on the appropriate page of the replacement log record.

e. Attach the replacement log record to the log record/inspection data pocket using the procedures
in detailed above.

RECEIPT OF USED PARACHUTE

Upon initial receipt of used parachute, proceed as follows:

1. Follow procedures given in the General Procedures for Air Delivery Equipment paragraph, above, and
check each component for excessive wear and tear.

2. If defects or damages are discovered, process the parachute for maintenance at the maintenance
level assigned by the Maintenance Allocation Chart (MAC), WP 0044 00.

AFTER-USE RECEIPT
When a parachute is received at the maintenance activity, following its use by the parachutist during air
delivery, it must be given a shakeout and aired (WP 0007 00) if necessary, cleaned (WP 0008 00) before
it can be returned to service. If a parachute is issued but is not used, it does not need to be given a
shakeout; however, it must be given a routine inspection by a qualified parachute rigger (MOS 92R).

END OF WORK PACKAGE

0003 00-9/(10 Blank)

 TM 10-1670-272-23&P 0004 00

MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY

ASSEMBLING MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY

THIS TASK COVERS:

· Assembly

INITIAL SETUP:

Material/Parts: Personnel Required

Tape, Pressure Sensitive, ½-inch, Yellow 92R (10) Parachute Rigger
(Item 41, WP 0056 00)
Equipment Condition
Parachute canopy in proper layout on packing
table or other suitable surface.

ASSEMBLY
Assembling the MC1-1B/CM1-1E Parachute. When the parachute is received from the supply activity,
and before it is packed for use, the components must be assembled. This must be accomplished during
the layout of the parachute (WP 0011 00). If, in assembling components, any component is found to be
defective, the parachute must be processed for repair. Place the components on a packing table and
obtain proper layout of the canopy assembly; then assemble components as follows:

1. MC1-1B/MC1-1E Harness. Attach the harness to the pack tray as follows:

a. Place the pack tray on the table, with back strap retainers and keepers up, and with the end flap
containing the static line slack retainer toward the apex end of the table.

b. Attach the harness to the pack tray as illustrated, by threading each of the pack tray diagonal
back-strap-retainers through the harness diagonal back-strap-channels (for the required size),
and through the back-strap keepers.

0004 00-1
 TM 10-1670-272-23&P 0004 00

c. Secure the pull-dot snap fasteners.

d. Secure both pack tray horizontal back-strap-retainers over the horizontal back-strap, as illustrated
above.

2. Risers. Attach the risers to the MC1-1B/MC1-1E harness as follows:

a. Lay the parachute harness down, with the female fittings of the harness near the male fittings of
the risers.

b. Fit heel of male fitting into groove of female fitting.

CABLE LOOP LATCH

TOE

MALE FITTING

HEEL
SAFETY CLIP

FEMALE FITTING GROOVE

c. Fit toe of male fitting into slot of female fitting, close latch and insure that the latch is securely
locked.

0004 00-2
 TM 10-1670-272-23&P 0004 00

d. Operate latch and check for smooth operation. Close and lock latch.

e. Position the cable loop around the latch.

f. Fit the heel of the safety clip into the slot of the latch.

0004 00-3
 TM 10-1670-272-23&P 0004 00

g. Close the safety clip.

h. If applicable, re-wrap risers utilizing 2 turns single, ½-inch yellow pressure sensitive adhesive tape
around the confluence wrap.

END OF WORK PACKAGE

0004 00-4
 TM 10-1670-272-23&P 0005 00

MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY

PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS), INTRODUCTION

GENERAL
The following describe PMCS procedures on the unit and direct support levels. The PMCS table has been
provided to ensure the MC1-1B/MC1-1E parachute is in proper operating condition, and ready for its
primary mission.

SCOPE
The following work packages (WP 0007 00 through WP 0042 00) contain maintenance procedures that
are the responsibility of the specified technician, as authorized by the Maintenance Allocation Chart
(MAC), and the Source, Maintenance, and Recoverability (SMR) coded items that are identified in the
Repair Parts and Special Tools List (RPSTL).

MAINTENANCE FUNCTIONS/PROCEDURES
Each of the mentioned work packages above identifies a maintenance function specified in the MAC. All
maintenance procedures required to complete a maintenance function are identified under “This task
covers:” in the order in which the work is most logically accomplished.

PARACHUTE REPACK INTERVAL

The MC1-1B/MC1-1E parachutes will be repacked at a scheduled interval to insure airworthiness. When
necessitated by climate/storage/use condition, the local airdrop equipment maintenance officer may
require more frequent repack intervals. In this regard, a major concern would be rapid fluctuations of
temperature (fluctuations around 32 degrees Fahrenheit, freezing point) sustained high or low
temperature, or high humidity and heavily polluted atmosphere. The MC1-1B/MC1-1E troop back
parachute assemblies will be repacked at a 120-day interval.

DROP TESTING CRITERIA

Drop-testing of the MC1-1B/MC1-1E troop back parachute assemblies consist of physically airdropping an
item from an aircraft in flight. The drop-test is used as a means of proving the serviceability of an item or
checking parachute rigger proficiency, and will only be performed under the supervision of qualified
parachute rigger personnel who satisfy the supervisory requirements outlined in AR 750-32. Drop-testing
will usually be conducted by an activity responsible for the inspection and maintenance of airdrop
equipment, which includes either parachute packing or airdrop load rigging. The criteria required to
accomplish a drop test is as follows:

1. To drop-test a troop-type personnel parachute, a qualified parachute rigger will jump the parachute
and the applicable type parachute will be released under conditions that are consistent with the
requirements for a personnel jump or equipment drop.

2. During the drop-test of any type parachute, the deployment of the parachute will be thoroughly
monitored and observed to detect any indication of malfunction or defect. A subsequent record of the
applicable parachute log record will be entered into the applicable log record using procedures outline
in WP 0003 00.

3. Any type of airdrop equipment that indicates evidence of malfunction/defect during, or after, a drop-
test will be disposed of as prescribed in WP 0009 00.

4. A personnel parachute that is considered to have contributed to the injury of an individual parachutist
(critical or fatal) will be disposed of in accordance with WP 0009 00, Equipment Disposition.

5. Airdrop equipment that does not reflect evidence of malfunction or defect upon completion of a drop-
test will be administered a technical/rigger-type inspection as outlined in WP 0009 00. If serviceable,
the item(s) may then remain in use.

END OF WORK PACKAGE

0005 00-1/(2 Blank)

 TM 10-1670-272-23&P 0006 00

MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY

PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)

GENERAL
The following describe PMCS procedures on the unit and direct support levels. The PMCS table has been
provided to ensure the MC1-1B/MC1-1E parachute is in proper operating condition, and ready for its
primary mission.

Warnings and Cautions. Warnings and cautions appear before applicable procedures. You must
observe these WARNINGS and CAUTIONS to prevent serious injury to yourself and others, and to
prevent damage to equipment.

Frequency of Performing PMCS. PMCS will be performed before equipment is packed for use, during
modification and repair after use, or at any time deemed necessary by the air delivery equipment
maintenance officer.

PMCS Columnar Entries Table 1.

Item Number. The item number column shall be used as a source of the item number required for the
TM Number column on DA Form 2404 (Equipment Inspection and Maintenance Worksheet), when
recording the results of the PMCS.

Interval. This column identifies the required PMCS interval.

Item to be Inspected. Contains the common name of the item to be inspected.

Procedures. Provides a brief description of the procedures by which the checks are to be performed.

Recording Defects. All defects discovered during the inspection will be recorded using the applicable
specifics in DA Pamphlet 738-750, DA PAM 738-751, and TB 43-0002-43.

Over Age Items. During any inspection, or at any time that an item is found to be over age i.e.,
shelf/service-life has expired as specified in TB 43-0002-43, the item will be removed from service,
condemned, and tagged, in accordance with DA PAM 738-751.

Conservation of Resources. To conserve time and labor, and to avoid evacuation to a direct support
maintenance activity, unit/detachment commanders may designate, in writing, rigger personnel to
accomplish classification inspection of over age air delivery equipment, and the classification of Beyond
Economical Repair (BER) parachutes.

Inspection Function Requirement. Normally, air delivery equipment maintenance personnel at a

packing, rigging, or repair activity will perform a technical/rigger-type inspection. The inspection of initial
receipt items will be performed as a separate function from packing or rigging activity; the item to be
inspected will be placed in proper layout on a packing table or suitable sized floor area.

Should defect or damage be discovered at any point during the inspection, the inspection will be
terminated and the applicable item will be processed and forwarded to the repair activity. The repair
activity, in turn, will conduct a technical/rigger-type inspection that will be performed by only those
parachute rigger personnel cited in AR 750-32. The repair activity inspection of personnel parachutes will
be made on the shadow table.

Any defect discovered during a unit level repair activity inspection, that exceeds the capability of that
activity, will require the affected item to be evacuated to a direct support maintenance facility.

0006 00-1
 TM 10-1670-272-23&P 0006 00

NOTE

Parachutes that are deemed unserviceable, by a packing or rigging

activity, will be rigger-rolled in accordance with WP 0042 (Accordion
Folding/Rigger Rolling) prior to being sent to a repair activity.

Table 1. Preventive Maintenance Checks and Services (PMCS)

B – Before D – During A - After

ITEM INTERVAL ITEM TO BE

PROCEDURES
NO. B D A INSPECTED

00 • • MC1-1B/ Verify that assembly is complete, and no

MC1-1E components are missing. Check for proper
Assembly assembly, foreign material, mildew or stains, and log
record book.

01 • • Canopy Canopy Assembly Fabric. Inspect for rips, burns,

holes, tears, dampness, debris, frays, broken or
loose stitching, and marred and illegible marks.

Bridle Loop. Inspect for cuts, breaks, frays, burns,

improper installation, and loose or broken stitching.

Apex Line. Inspect for burns, cuts, thin cords,

breaks, and loose or broken stitching on lateral band
or radial seam.

Upper Lateral Band. Inspect the upper lateral band

for holes, cuts, frays, tears, burns, and loose or
broken stitching.

Gore Sections. Inspect the gore sections for

dampness, dirt, foreign material, holes, cuts, snags,
tears, frays, burns, loose or broken stitching, and
marred or illegible markings.

Informational Data Block. Inspect for illegibility of

data.

0006 00-2
 TM 10-1670-272-23&P 0006 00

Table 1. Preventive Maintenance Checks and Services (PMCS) - Continued

B – Before D – During A - After

ITEM INTERVAL ITEM TO BE

PROCEDURES
NO. B D A INSPECTED

01 • • Canopy - Radial Seams. Inspect for loose and broken

Continued stitching, holes and tears.

Radial Tapes. Inspect for loose or broken stitching,

holes, tears, and lack of freedom within radial seam.

V-Tabs. Inspect for loose or broken stitching, frays,

tears, burns, and cuts.

Pocket Bands. Inspect for cuts, frays, tears, burns,

and loose or broken stitching.

Lower Lateral Band. Inspect for loose or broken

stitching, rips, snags, and burns.

Anti-Inversion Net. Check for cuts, broken cords,

and loose or broken stitching.

Lines. Inspect for loose or broken stitching, broken

lines, broken core cords, frays, burns, and tears.

Connector Links. Inspect for rust, burrs, rough

spots, corrosion, cracks, foreign material, loose or
missing screws, stripped threads, and ends not
locked.

Control Lines. Inspect for loose or broken stitching,

broken case cords, frays, burns, tears, or broken
lines.

Control Line Reefing Ring. Inspect for burrs, rust,

rough spots, corrosion, cracks and bends.

Control Line Bridle. Inspect for loose or broken

stitching, broken case cords, frays, burns, tears, and
broken lines.

Toggle. Inspect for rough spots and cracks.

Control Line Guide Ring. Inspect for rust, burrs,

rough spots, corrosion, cracks, and bends.

Guide Ring Retaining Strap. Inspect for loose or

broken stitching, frays, tears, and cuts.

0006 00-3
 TM 10-1670-272-23&P 0006 00

Table 1. Preventive Maintenance Checks and Services (PMCS) - Continued

B – Before D – During A - After

ITEM INTERVAL ITEM TO BE

PROCEDURES
NO. B D A INSPECTED

02 • • Risers Risers. Inspect for loose or broken stitching and

tacking, burns, frays, tears, deterioration, and
marred (or illegible) markings.

Canopy Release Male Fittings. Inspect for

corrosion, rough spots, bends, and cracks.

Log Record Pocket. Inspect for loose or broken

stitching.

Identification Tape. Inspect for loose or missing

yellow pressure sensitive adhesive tape.

03 • • Harness All Webbings, Bindings, and Cloth Duck. Inspect for

loose or broken stitching, burns, frays, tears, and
marred or illegible markings.

All Hardware & Functional Fittings. Inspect for

improper operation, rust, corrosion, burrs, & cracks.

Retainer Webbings. Inspect for loose or broken

stitching, loss of elasticity, cuts and frays.

Canopy Release and Ejector Snap Pads. Inspect for

loose or broken stitching and hand tacking, cuts, and
tears.

Horizontal Back-strap: 96-Inch and 120-Inch.

Inspect for loose or broken stitching, burns, frays,
tears, and marred (or illegible) markings.

04 • • Pack Tray Pack Tray. Inspect for illegible markings. Inspect

webbings, bindings, and duck cloth for loose or
broken stitching and tacking, holes, tears, burns, and
frays.

Back-strap Retainers & Keepers. Inspect for loose

or broken stitches, tears, burns or frays, and missing
(or damaged) snap fasteners.

Pack Closing Loop. Inspect for loose or broken

stitches, burns, frays and tears.

Retainer Band Keepers. Inspect for loose or broken

stitches, burns, frays and tears.

0006 00-4
 TM 10-1670-272-23&P 0006 00

Table 1. Preventive Maintenance Checks and Services (PMCS) - Continued

B – Before D – During A - After

ITEM INTERVAL ITEM TO BE

PROCEDURES
NO. B D A INSPECTED

04 • • Pack Tray - Static Line Slack Retainer. Inspect for loose or

Continued broken stitches, burns, frays, tears and elasticity.

Waistband & Waistband Extension. Inspect for

loose or broken stitches, burns, frays and tears; and
check metal adjuster for rust, burrs, or corrosion.

05 • • Deployment Deployment Bag. Inspect all webbing and tapes for

Bag loose or broken stitching.

Main Panel. Inspect for holes and tears, loose and

broken stitching.

Stow Loops and Reinforcement Panel. Inspect for

loose or broken stitching, holes, tears, burns or
frays.

Edge Reinforcement Webbing. Inspect for loose

and broken stitching, holes, tears, burns or frays.

Side Flaps. Inspect for loose and broken stitching,

holes, tears, burns or frays.

Locking Stow Panel. Inspect for loose and broken

stitching, holes, tears, burns or frays.

Locking Stow Loop Hoods. Inspect for loose or

broken stitching, holes, tears, burns or frays.

Closing & Locking Stow Loops. Inspect for loose or

broken stitching, holes, tears, burns, or frays.

Suspension Line Protection Cover. Inspect for loose

or broken stitching, holes, tears, burns, frays and
illegibility of markings.

Cover Tiedown Loops. Inspect for loose or broken

stitching, holes, tears, burns or frays.

Connector Link Tie Loops. Inspect for loose or

broken stitching, holes, tears, burns or frays.

0006 00-5
 TM 10-1670-272-23&P 0006 00

Table 1. Preventive Maintenance Checks and Services (PMCS) - Continued

B – Before D – During A - After

ITEM INTERVAL ITEM TO BE

PROCEDURES
NO. B D A INSPECTED

06 • • Standard Webbing. Inspect for loose or broken stitching,

Static Line & holes, line extension tears, burns or frays.
Static Line
Extension Sleeve and Buffer. Inspect for loose or broken
stitching, holes, tears, burns or frays. Inspect entire
portion of static line covered by sleeve.

Pack Opening Loop. Inspect for loose or broken

stitching, burns, tears or frays.

Snap Hook. Inspect for proper operation, excessive

wear, rust, burrs, corrosion, and cracks. Verify that
proper hole has been drilled.

Safety Pin. Inspect for rust, corrosion, breaks, and

twists.

Safety Pin Lanyard. Inspect for proper ties, frays,

thin spots and breaks.

07 • • Universal Static Webbing. Inspect for loose or broken stitching,

Line (USL) holes, line extension tears, burns or frays.

Static line webbing with minor abrasions are

serviceable. Minor Abrasions are visible on the
surface of the USL webbing and will appear to look
“fuzzy.”

Minor Abrasion.

Static line webbing with major abrasions are

unserviceable. Major abrasions are visible when
inner core fibers are pulled through the surface of
the webbing.

Major Abrasion.

Sleeve and Buffer. Inspect for loose or broken

stitching, holes, tears, burns or frays. Inspect entire
portion of static line covered by sleeve.

0006 00-6
 TM 10-1670-272-23&P 0006 00

Table 1. Preventive Maintenance Checks and Services (PMCS) - Continued

B – Before D – During A - After

ITEM INTERVAL ITEM TO BE

PROCEDURES
NO. B D A INSPECTED

07 • • Universal Static Pack Opening Loop. Inspect for loose or broken

Line (USL) - stitching, burns, tears or frays.
Continued
Snap Hook. Inspect for proper operation, excessive
wear, rust, burrs, corrosion, and cracks.

LUBRICATION SERVICE INTERVALS

MC1-1B/MC1-1E Troop Back Parachute Assembly does not require lubrication service.

END OF WORK PACKAGE

0006 00-7/(8 Blank)

 TM 10-1670-272-23&P

CHAPTER 3
UNIT MAINTENANCE INSTRUCTIONS
FOR
MC1-1B TROOP BACK PARACHUTE ASSEMBLY
MC1-1E TROOP BACK PARACHUTE ASSEMBLY
 TM 10-1670-272-23&P 0007 00

UNIT MAINTENANCE
MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
SHAKEOUT AND AIRING

THIS TASK COVERS:

•= Shakeout
•= Airing

INITIAL SETUP:

Materials/Parts
Brush, Scrub, Household (Item 3, WP 0056 00)

Personnel Required
Two, 92R(10) Parachute Rigger

Equipment Condition
Parachute Suspended.

SHAKEOUT
A two-person team, either indoors within a shakeout room or outdoors at a shakeout tower, will
accomplish the shakeout. Each parachute will be suspended by the canopy bridle loop and all debris
removed by shaking the canopy thoroughly or by brushing with a dry, soft-bristled brush, as detailed
below:

1. With assistance from the No. 2 person, the No. 1 person will connect the snap on a pulley rope to the
canopy bridle loop.

2. Through use of the pulley rope, the No. 2 person will raise the canopy to a suitable height; this will
enable the No. 1 person to perform shakeout on each of the canopy gores. Until the gore shaking
process is completed, the No. 2 person will maintain a steady pull on the pulley rope to hold the
suspended canopy at the working height needed by the No. 1 person.

0007 00-1
 TM 10-1670-272-23&P 0007 00

3. The No. 1 person will grasp any two-consecutive suspension lines, one in each hand, and vigorously
shake the first gore.

4. When the gore is free of debris, the No. 1 person passes the line from the right hand to the left hand
and grasps the next consecutive suspension line, in the right hand. The No. 1 person will shake out
each consecutive gore until all suspension lines are held in the left hand, and all gores are free of
debris.

5. Once the gore shaking process is completed, the No. 2 person will slowly raise the suspended canopy
higher as the No. 1 person clears the suspension lines of debris and removes entanglements, when
possible.

6. After the suspension lines have been cleared, the No. 2 person may hold, or temporarily secure, the
pulley rope while the No. 1 person proceeds to clear debris from other parachute components such as
the risers, harness, and pack tray.

0007 00-2
 TM 10-1670-272-23&P 0007 00

7. When all components are free of debris, the No. 2 person will slowly lower the canopy, while the No. 1
person S-folds the suspension lines into the pack tray, or aviator's kit bag, as applicable.

8. After the suspension lines have been completely folded, the No. 1 person will accordion-fold the
canopy length on top of the folded lines.

9. As the canopy folding is being completed, the No. 1 person disconnects the canopy vent from the
pulley rope snap. Secure the folded canopy assembly for further handling.

AIRING
Where dampness and mildew are prevalent, air delivery equipment will be aired at frequent intervals
according to the severity of the prevailing conditions. Parachutes that have been previously packed or are
unpacked, and have been subjected to conditions of dampness or mildew, will be aired for a period of at
least 6-hours prior to being repacked. Air delivery items may be aired either indoors or outdoors, in dry
weather. However, fabric items will not be aired in direct sunlight. Airing may be accomplished by
suspending or elevating the applicable item(s) in a manner that would allow maximum exposure to air
circulation. Outside facilities used for the shakeout of parachutes may be used for the airing of air delivery
equipment, if weather conditions permit. If the shakeout facilities are inadequate for airing, the applicable
item(s) may be suspended or elevate at several points, or draped over suitable type objects that will not
cause damage.

END OF WORK PACKAGE

0007 00-3/(4 Blank)

 TM 10-1670-272-23&P 0008 00

UNIT MAINTENANCE
MC1-1B/MC1 1-E TROOP BACK PARACHUTE ASSEMBLY
CLEANING AND DRYING

THIS TASK COVERS:

• Cleaning fabric items with dishwashing compound
• Rinsing parachute assembly immersed in salt water
• Rinsing parachute assembly immersed in fresh water
• Drying fabric items
• Cleaning metal items

INITIAL SETUP:

Materials/Parts Personnel Required

Brush, Scrub Household (Item 3, WP 0056 00) 92R(10) Parachute Rigger
Cloth, Abrasive (Item 6, WP 0056 00)
Dishwashing Compound (Item 16, WP 0056 00) Equipment Condition
Lubricant, Solid Film (Item 24, WP 0056 00) Laid out on packing table or other suitable
Rag, Wiping (Item 33, WP 0056 00) surface.

CAUTION

If, during the cleaning, there exists a possibility that the substance to
be removed contains acid or some other equally destructive
ingredient, the item will be evacuated to intermediate maintenance
activity for determination as to the nature of the substance and item
disposition. If the substance cannot be identified, or if normal repair
procedures will not eliminate all traces of chemical or acid damage,
the applicable item will be condemned.

NOTE

Cleaning of parachutes should be held to a minimum and should be

performed only when necessary, to prevent malfunction or
deterioration. When a parachute contains debris, or when it is soiled
by dirt, oil, grease, rust, corrosion, or other foreign substances, to
such an extent that cleaning is necessary, the cleaning should be
performed manually and should be limited to the soiled area only,
unless the parachute has been contaminated by water. The methods
of cleaning must be determined by the nature of the substance to be
removed. Do not use cleaning solvent to clean items soiled by
airsickness. Use a solution of hand dishwashing compound to clean
this type of soiling.

0008 00-1 Change 1

 TM 10-1670-272-23&P 0008 00

CLEANING FABRIC ITEMS WITH A SOLUTION OF HAND DISHWASHING COMPOUND

Use dishwashing compound to clean fabric items as follows:

1. Gently brush with a soft bristle brush.

2. Spot clean with a solution of dishwashing compound.

a. Dissolve one-half cup of dishwashing compound in one-gallon of warm water.

b. Rub the soiled area with a clean cloth dampened with a solution of dishwashing compound.

c. Rinse cleaned area by repeating process with a clean portion of cloth dampened with water.

RINSING PARACHUTE ASSEMBLY IMMERSED IN SALT-WATER

If the parachute, or any of its components, has been immersed in salt water in excess of 24-hours, it will
be condemned. Additionally, if the parachute, or any of its components, has been immersed in salt water
for a period less than 24-hours, but cannot be rinsed within 48-hours after recovery, it will also be
condemned, unless the following actions are performed. Upon removal from the salt water, the parachute
is placed in a single heavy-duty plastic trash bag, the top of the bag secured closed, and kept in a wet
state until a rinse can be performed following the normal rinse procedures. The bag must be doubled
when outside temperatures exceed 85 degrees F. The bag must be inspected after transport and stored
to insure that the bag did not get torn and the assembly is allowed to dry. Parachutes recovered using
this method must be rinsed NLT than 7 days after the salt water immersion or be condemned. However, if
the cited time limitations can be met, then immediately upon recovery, suspend or elevate the parachute
assembly in a shaded area and allow it to drain for at least 5-minutes. Do not attempt to wring the fabric
or the suspension lines. Within 48-hours after recover, under the supervision of a qualified parachute
rigger (92R), rinse the recovered parachute assembly as follows:

1. Place the parachute assembly in a large watertight container filled with a suitable amount of fresh,
clean water to cover the assembly.

NOTE

If the salt-water-soaked parachute assembly is too large to be

placed into a rinsing container, then the rinsing process will be
affected by applying fresh, clean water to the assembly using a
hose.

2. Agitate the container contents by hand for 5-minutes.

3. Remove the parachute assembly from the container and suspend or elevate it in a shaded area,
allowing a 5-minute drainage period. Do not attempt to wring the fabric or the suspension lines.

4. Repeat the procedures in steps 1. through 3., above, twice, using fresh, clean water for each rinse.

5. After the third rinse, allow the parachute assembly to drain thoroughly. Upon completion of draining,
dry the assembly in accordance with the Drying Fabric Items procedures, below.

6. When dried, perform a technical/rigger-type inspection of the parachute assembly. Corroded metal
components, or corrosion-stained fabrics or suspension lines, will be either repaired or replaced as
prescribed by the Maintenance Allocation Chart (MAC) in WP 0044 00.

Change 1 0008 00-2

 TM 10-1670-272-23&P 0008 00

7. Record any repair, immersion, and rinsing in the parachute log record as shown in WP 0003 00
(Service Upon Receipt).

RINSING PARACHUTE ASSEMBLY IMMERSED IN FRESH-WATER

Any parachute, or its components, that has been immersed in a fresh water lake, river, or stream will not
require rinsing unless it has been ascertained that the water is dirty, oily, or otherwise contaminated.
Procedures for handling a fresh water immersed parachute are as follows:

1. Contaminated fresh-water. If the parachute, or its components, has been immersed in contaminated
fresh water, rinse and dry (see Rinsing Parachute Assembly Immersed in Salt Water, above), and, if
applicable, repair.

2. Uncontaminated fresh-water. If the parachute, or its components, has been immersed in

uncontaminated fresh water, it will be cleaned and dried as outlined in Cleaning Fabric Items With a
Solution of Hand Dishwashing Compound, Drying Fabric Items, and Cleaning Metal Items, in the
detailed paragraphs above and below. Minor discoloration of fabric items, resulting from immersion in
uncontaminated fresh water, may occur.

NOTE

Fabric items will not be dried in direct sunlight or by laying an item

on the ground.

DRYING FABRIC ITEMS

Dry fabric items as follows:

1. Suspend or elevate the item in a well-ventilated room or in a heated drying room.

2. Using electric circulating fans may reduce drying time.

3. When heat is used, the heat temperature shall not exceed 160 degrees Fahrenheit (71 degrees
Celsius). The preferred temperature is 140 degrees Fahrenheit (60 degrees Celsius).

CLEANING METAL ITEMS

Clean metal items as follows:

CAUTION

Use care not to damage the adjacent fabric materials.

1. Remove burrs, rough spots, rust, or corrosion from metal items by filing with a metal file, or by buffing
and polishing with abrasive cloth.

2. Remove all oils and filings by brushing and cleansing with dishwashing compound. Allow to dry.

0008 00-3 Change 1

 TM 10-1670-272-23&P 0008 00

NOTE

Shield adjacent fabric material before spraying solid film lubricant.

3. Spray metal items with a solid film lubricant and allow to air dry for 24-hours.

NOTE

A small amount of lubricant will not damage fabric, but may cause
discoloration and make fabric appear soiled.

END OF WORK PACKAGE

Change 1 0008 00-4

 TM 10-1670-272-23&P 0009 00

UNIT MAINTENANCE
MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
INSPECTION

THIS TASK COVERS:

• Routine
• Pack-In-Process
• Technical/Rigger-Type
• In-Storage
• Equipment Disposition

INITIAL SETUP:

Equipment Condition References

Packed. DA PAM 738-751; TB 43-002-43;
DA PAM 738-750; AR 750-1; WP 0003 00;
Personnel Required WP 0008
0092(R) Parachute Rigger

ROUTINE INSPECTION
A routine inspection is a visual check performed to ascertain the serviceability of all visible components of
a parachute that is packed or rigged for use. The inspection will be made on all components that can be
inspected without opening the parachute pack. Prior to issue, a parachute rigger will administer this
inspection. Personnel parachutes issued for an air delivery operation and not deployed will receive a
routine inspection prior to being placed into ready-for-issue storage.

PACK-IN-PROCESS INSPECTION
A pack-in-process inspection is performed at specified intervals during the packing of a parachute to
ensure that only authorized procedures and methods are being used. A parachute rigger other than the
packer or rigger preparing the applicable equipment for use will accomplish the inspection. The intervals,
at which the inspection is performed, are as follows:

WARNING

Deployment bag will be given a complete inspection, including static

line and that portion of the static line that is covered by the static line
sleeve. Failure to do so could result in serious injury or death to the
parachutist.

NOTE

For Army personnel, the In-Process-Inspector (IP) qualifications are

IAW AR 750-32.

1. After the parachute is placed in proper layout.

2. After the gores are folded and the flatfold is completed.

3. After the canopy is longfolded and the breakcord is tied.

0009 00-1 Change 1

 TM 10-1670-272-23&P 0009 00

4. After the deployment bag is closed (first regular stow).

5. After the suspension lines are stowed.

6. After the pack tray is closed.

7. After the static line is stowed.

TECHNICAL/RIGGER-TYPE INSPECTION PROCEDURES

Perform inspection as follows:

1. Overall inspection. An overall inspection will be made on the MC1-1B/MC1-1E parachute to ascertain
the following:

NOTE

U.S. Navy utilizes NAVWPNCEN or NAWCWPNS CL /3512/11,

Parachute History Record.

a. Log record/parachute inspection data pocket and form. As applicable, inspect the assembly log
record parachute inspection data pocket to ensure the Army Parachute Log Record (DA Form
3912 and AFTO 391) is enclosed and properly attached as prescribed in WP 0003 00 (Installing
Attached Tie). Further, remove the log record from the pocket and evaluate the recorded entries
(WP 0003 00). Inspect and evaluate as follows:

NOTE

The Army Parachute Log Record, DA Form 3912, and AFTO 391
are history-type maintenance documents that accompany the
parachute canopy and pack tray assemblies through the period of
service of the individual assembly. The log record provides a means
of recording maintenance actions performed on a parachute canopy
assembly. Normally, a log record is initiated and attached to a right
rear riser upon receipt by a using unit. However, if the item is
subjected to alteration or modification by a maintenance activity
during the interim period from date of manufacture to receipt by a
using unit, the log record will be prepared by the activity performing
the maintenance function. Once initiated, a log record will be
attached to, and contained in, an affixed parachute log record/
inspection data pocket, until such time as the parachute canopy
assembly is destroyed or rendered unfit for further use or repair.
Additionally, should an item that requires a log record, be transferred
from one unit to another, the log record for the parachute assembly
will accompany the item in the transfer action.

Change 1 0009 00-2

 TM 10-1670-272-23&P 0009 00

NOTE

A prepared log record will not be removed or separated from a

parachute, and especially a packed parachute, except as directed by
the local air delivery equipment maintenance activity officer.

A log record that is illegible, lost, damaged, soiled, or precludes

further entries due to lack of space, will be replaced upon the next
repack or inspection, as applicable, with a serviceable item from
stock.

b. Assembly completeness. Ensure the applicable assembly is complete and that no components
(or parts) are missing.

c. Operation adequacy. Check the item components and parts to ensure proper assembly, which
includes attachment and alignment, and that the assembled product functions in the prescribed
manner. Further, ensure that no stitch formation (or sewn seam) has been omitted.

d. Markings and stenciling. Inspect each assembly and components for faded, illegible, obliterated,
or missing informational data and identification numbers.

e. Foreign material and stains. Inspect each assembly and related components for the presence of
dirt or similar type foreign material. Also check for evidence of mildew, moisture, oil, grease, pitch,
resin, or contamination by salt water.

2. Detailed inspection. In addition to the overall inspection performed in (1), above, a detailed inspection
will be performed on the materials that constitute the assembly or component construction using the
following criteria, as applicable:

a. Metal. Inspect for rust, corrosion, dents, bends, breaks, burrs, rough spots, sharp edges, wear,
deterioration; damaged, loose or missing grommets, safety pins, connector snap, eye hook, pack
fastener; improper swaging or welding; loss of spring tension; and missing or loose screws.

b. Cloth. Inspect for breaks, burns, cuts, frays, holes, rips, snags, tears, loose, missing, or broken
stitching or tacking; and weak spots, wear, or deterioration.

c. Fabric tape, webbing, and cordage. Inspect for breaks, burns, cuts, frays, holes, snags, tears,
incorrect weaving, and sharp edges formed from searing; loose, missing, or broken stitching,
tacking, whipping, and weaving; weak spots, wear, and deterioration.

d. Pressure-sensitive (adhesive) tape. Inspect for burns, holes, cuts, tears, weak spots; and
looseness and deterioration.

e. Rubber and elastic. Inspect for burns, cuts, holes, tears, weak spots, loss of elasticity and
deterioration.

IN-STORAGE INSPECTION
An in-storage inspection is a physical check conducted on a random sample of air delivery equipment that
is located in storage. The purpose of the inspection is to ensure that the equipment is ready for issue, that
the item is properly identified and segregated from other types of equipment, that no damage or
deterioration of equipment has been incurred, and that all modifications or similar action requirements
have been completed. The inspection shall also concern the methods and procedures applied to the
storage of air delivery items, the adequacy of storage facilities, efforts of pest and rodent control, and
protection against unfavorable climatic conditions.

0009 00-3 Change 1

 TM 10-1670-272-23&P 0009 00

Air delivery equipment that is in storage will be inspected at least semiannually and at more frequent
intervals if prescribed by the local parachute maintenance officer. The frequency of inspection may vary
according to the type of storage facilities and local climatic conditions. Only parachute rigger personnel
designated by the local parachute maintenance officer will conduct in-storage inspections.

EQUIPMENT DISPOSITION
Air delivery equipment may be rendered unserviceable by either normal fair wear or by aging, and will
subsequently be repaired, modified, or condemned, as appropriate. Equipment that is uneconomically
reparable (outdated) will be condemned. Disposition of air delivery equipment that is condemned,
unserviceable, or for which the serviceability is questioned, will be accomplished using the following
procedures, as applicable:

1. Item requiring repair or modification. An air delivery item that requires repair or modification will be
tagged in accordance with DA PAM 738-751. Subsequent work on the item will be performed at the
maintenance level specified for the maintenance function in the applicable supporting technical
publication.

2. Parachutes with exhausted age or service life. Any parachute component or air delivery equipment
whose age or service life has expired as specified in TB 43-0002-43 will be removed from service,
condemned, and tagged as prescribed by DA PAM 738-751.

3. Disposition of condemned air delivery equipment. Condemned equipment, other than fatality
parachutes, will be removed from service and disposed of in accordance with current directives listed in
this work package.

4. Rejected equipment. Equipment which, prior to use, is deemed unserviceable for use will be reported
in an EIR in accordance with DA PAM 738-750, as authorized by AR 750-1. Each applicable item that
is defective will be held and safeguarded pending receipt of disposition instructions from the National
Maintenance Point (NMP). In all instances, EIR exhibit material will be handled as prescribed in DA
PAM 738-750. If the quality or the serviceability of an item is questionable, clarification and assistance
may be obtained by contacting Commander, US Army Soldier and Biological Chemical Command,
ATTN: AMSSB-RIM-E(N), Kansas Street, Natick, MA 01760-5052.

5. Equipment of doubtful serviceability. Equipment that has had previous use and has not exceeded
normal fair wear or aging criteria, but of which further serviceability is doubtful, will be tagged as
prescribed in DA PAM 750-751. In addition, the equipment will be reported in an EIR, in accordance
with DA PAM 738-750 and AR 750-1. The item(s) in question will be held as EIR exhibit material as
outlined in DA PAM 738-750 pending receipt of disposition instructions from the NMP. A maintenance
activity holding EIR exhibit material will not tamper with the applicable item(s) or make any attempt to
ascertain cause factors. Unnecessary handling of EIR exhibit material may disturb or alter peculiar
aspects of the affected item(s) that might affect the judgment of engineering personnel who have the
responsibility for final evaluation of EIR actions.

Change 1 0009 00-4

 TM 10-1670-272-23&P 0009 00

6. Equipment immersed in salt-water. Any air delivery item equipment constructed from cotton material
that has been immersed in salt-water will be condemned. Cotton thread used for tacking and sewing
on nylon parachute packs that have been immersed in salt-water will only be replaced when there is
visible evidence or deterioration such as extreme discoloration or indications of broken thread. Any air
delivery equipment constructed of nylon or rayon material that has been immersed in salt-water for a
period less than 24-hours, but which cannot be rinsed within 48-hours after recovery will also be
condemned, unless the following actions are performed. Upon removal from the salt water, the
parachute is placed in a single heavy-duty plastic trash bag, the top of the bag secured closed, and
kept in a wet state until a rinse can be performed following the normal rinse procedures. The bag must
be doubled when outside temperatures exceed 85 degrees F. The bag must be inspected after
transport and stored to insure that the bag did not get torn and the assembly is allowed to dry.
Parachutes recovered using this method must be rinsed NLT than 7 days after the salt water immersion
or be condemned. However, if the cited time limitations can be met, then immediately upon recover,
suspend or elevate the recovered equipment in a shaded area and allow the item(s) to drain for at least
5-minutes. Do not attempt to wring the equipment fabric or the suspension lines. Within 48-hours after
recover, under the supervision of a qualified parachute rigger (92R), rinse the recovered equipment as
indicated in WP 0008 00.

END OF WORK PACKAGE

0009 00-5/(6 Blank) Change 1

 TM 10-1670-272-23&P 0010 00
UNIT MAINTENANCE
MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
SALT-/FRESH-WATER CONTAMINATION TEST

THIS TASK COVERS:

• Inspection

INITIAL SETUP:

Equipment Condition Personnel Required

Laid out on packing table or other suitable area. 92R(10) Parachute Rigger

INSPECTION
Look for a white crystalline residue. If evidence of salt-water/fresh-water contamination is found, refer to
the procedures detailed below:

Rinsing Parachute Assembly Immersed in Salt-Water. If the parachute, or any of its components, has
been immersed in salt water in excess of 24-hours, it will be condemned. Additionally, if the parachute or
any of its components has been immersed in salt water for a period less than 24-hours, but cannot be
rinsed within 48-hours after recovery, it will also be condemned, unless the following actions are
performed. Upon removal from the salt water, the parachute is placed in a single heavy-duty plastic trash
bag, the top of the bag secured closed, and kept in a wet state until a rinse can be performed following the
normal rinse procedures. The bag must be doubled when outside temperatures exceed 85 degrees F.
The bag must be inspected after transport and stored to insure that the bag did not get torn and the
assembly is allowed to dry. Parachutes recovered using this method must be rinsed NLT than 7 days
after the salt water immersion or be condemned. However, if the cited time limitations can be met, then
immediately upon recover, suspend or elevate the parachute assembly in a shaded area and allow it to
drain for at least 5-minutes. Do not attempt to wring the fabric or the suspension lines. Within 48-hours
after recover, under the supervision of a qualified parachute rigger (92R), rinse the recovered parachute
assembly as follows:

1. Place the parachute assembly in a large watertight container filled with a suitable amount of fresh,
clean water to cover the assembly.

NOTE

If the salt-water-soaked parachute assembly is too large to be

placed into a rinsing container, then the rinsing process will be
affected by applying fresh, clean water to the assembly using a
hose.

2. Agitate the container contents by hand for 5-minutes.

3. Remove the parachute assembly from the container and suspend or elevate it in a shaded area,
allowing a 5-minute drainage period. Do not attempt to wring the fabric or the suspension lines.

4. Repeat the procedures in steps (1) through (3) above, twice, using fresh, clean water for each rinse.

0010 00-1 Change 1

 TM 10-1670-272-23&P 0010 00
UNIT MAINTENANCE
MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
SALT-/FRESH-WATER CONTAMINATION TEST

5. After the third rinse, allow the parachute assembly to drain thoroughly. Upon completion of draining,
dry the assembly in accordance with the Drying Fabric Items procedures detailed below.

6. When dried, perform a technical/rigger-type inspection of the parachute assembly. Corroded metal
components, or corrosion-stained fabrics or suspension lines, will be either repaired or replaced as
prescribed by the Maintenance Allocation Chart (MAC) in WP 0044 00.

7. Record any repair, immersion, and rinsing in the parachute log record as shown in WP 0003 00.

Rinsing Parachute Assembly Immersed in Fresh-Water. Any parachute, or its components, that has
been immersed in a fresh water lake, river, or stream will not require rinsing unless it has been
ascertained that the water is dirty, oily, or otherwise contaminated. Procedures for handling a fresh water
immersed parachute are as follows:

1. Contaminated fresh water. If the parachute, or its components, has been immersed in contaminated
fresh water, rinse and dry (see Rinsing Parachute Assembly Immersed in Salt Water, above), and, if
applicable, repair.

2. Uncontaminated fresh water. If the parachute, or its components, has been immersed in
uncontaminated fresh water, it will be cleaned and dried as outlined in Cleaning Fabric Items With a
Solution of Hand Dishwashing Compound, Drying Fabric Items, and Cleaning Metal Items, in the
detailed paragraphs above and below. Minor discoloration of fabric items, resulting from immersion in
uncontaminated fresh water, may occur.

NOTE

Fabric items will not be dried in direct sunlight or by laying an item

on the ground.

Drying Fabric Items. Dry fabric items as follows:

1. Suspend or elevate the item in a well-ventilated room or in a heated drying room.

2. Using electric circulating fans may reduce drying time.

3. When heat is used, the heat temperature shall not exceed 160 degrees Fahrenheit (71 degrees
Celsius). The preferred temperature is 140 degrees Fahrenheit (60 degrees Celsius).

END OF WORK PACKAGE

Change 1 0010 00-2

 TM 10-1670-272-23&P 0011 00

UNIT MAINTENANCE
MC-1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
PACKING PROCEDURES

THIS TASK COVERS:

• Inspection • Stowing the Canopy
• Orientation • Closing Deployment Bag and Stowing
• Preparing Parachute for Proper Layout Suspension Lines
• Removing Tangles and Twists from Apex • Tying Connector Links and Suspension Line
Lines Protective Cover
• Removing Inversion • Closing the Pack Tray
• Removing Turns, Tangles/Twists From • Stowing the Static Line
Suspension Lines • Army Parachute Log Record
• Folding the Gores • Static Line Extensions
• Longfolding the Canopy • Folding the Harness
• Tying Static Line to Bridle Loop of Canopy

INITIAL SETUP:

Tools Personnel Required

Knife (Item 13, WP 0043 00) 92R(10) Parachute Rigger
Line Separator (Item 16, WP 0043 00)
Packing Paddle (Item 20, WP 0043 00) Equipment Condition
Plate, Tension (Item 22, WP 0043 00) Parachute cleaned (WP 0008 00)
Packing Weights (Item 21, WP 0043 00) and given a shakeout (WP 0007 00).
Stow Hook (Item 29, WP 0043 00)
References
Materials/Parts TM 10-1670-201-23/
Band, Rubber Retainer (Item 1, WP 0056 00) T.O. 13C-1-41/NAVAIR 13-1-17
Webbing, Textile, Cotton, Type I, ¼-in. (Item 62, DA PAM 738-751; TB 43-0002-43;
WP 0056 00) WP 0004 00; WP 0009 00;
Tape, Masking, 2-in. (Item 44, WP 0056 00) WP 0041 00

WARNING

Failure to detect areas of damage may result in malfunction of the

parachute and injury, or loss of life, to personnel.

NOTE

The parachute shall be repacked every 120 days.

INSPECTION
If defects or damages are discovered during inspection of a parachute, the parachute must be rigger-rolled
and processed for maintenance, in accordance with Accordion Folding/Rigger Rolling procedures (WP
0042 00). A technical/rigger-type inspection and a pack-in-process inspection must be performed in
conjunction with the packing of each parachute (refer to WP 0009 00).

0011 00-1 Change 1

 TM 10-1670-272-23&P 0011 00

NOTE

Once the USL and USL extension has been used in a parachute
deployment from an aircraft, the webbing while under tension will
stretch, therefore never returning to its original manufactured
dimension. That original manufactured dimension is what
determines the static line length serviceability at the time of in-
service inspection.

NOTE

For the USL, when laying out the static line to form the girth hitch,
ensure the green ID marking thread of the webbing is on the top.

1. Attaching the USL to the deployment bag.

a. Position the deployment bag with the stow loops facing up and pass the 6-inch buffer loop of the
USL clockwise, halfway through the break cord attaching strap loop.

b. Pass the 3½-inch loop end of the USL through the 6-inch buffer loop, counterclockwise, until a
taut girth-hitch is formed.

Change 1 0011 00-2

 TM 10-1670-272-23&P 0011 00

c. Securing the static line to the deployment bag.

2. Attaching the snap hook to the USL or the USL extension.

a. Position the snap hook so the opening is facing outward. Lay the static line flat on the packing
table; ensure the green ID marking thread is on top and on the outside of the loop.

b. Pass the 3½-inch loop end of the static line through the opening in the base of the snap hook,
from bottom to top.

c. Pass the top of the snap hook through the static line loop.

0011 00-3 Change 1

 TM 10-1670-272-23&P 0011 00

d. Continue passing the snap hook through the static line loop; pull the excess static line back
through the opening in the base of the snap hook until the loop is past the snap hook opening.

e. Slide the loop down to the bottom of the snap hook until the static line is fully seated in the indent
on the side of the snap hook; form a taut girth-hitch.

f. Ensure there are no twists in the static line snap hook loop.

NOTE

Before forming the girth-hitch, the green ID marking thread on the

USL and USL extension must be on top.

3. Attaching the USL extension to the USL.

a. Attach the USL snap hook to the USL extension as stated in paragraph 2 above.

b. Pass the 3½-inch loop, on the USL through the 2-inch buffer loop, on the USL extension.

Change 1 0011 00-4

 TM 10-1670-272-23&P 0011 00

c. Pass the snap hook, of the USL extension, through the 3½-inch loop, on the USL.

d. Continue passing the snap hook through the 3½-inch loop until a taut girth-hitch is made securing
the USL extension to the USL (There will be a half-twist in the 3½-inch loop when forming the
girth-hitch).

0011 00-5 Change 1

 TM 10-1670-272-23&P 0011 00

4. Technical/rigger-type inspection. Before each parachute is packed by air delivery, it must be given
technical/rigger-type inspection by the packer, in accordance with WP 0009 00.

5. Pack-in-process inspection. A designated supervisory rigger, other than the packer, must perform a
pack-in-process inspection at seven intervals during the packing procedure. The inspection is
performed to ensure that the parachute is packed according to authorized packing procedures (refer to
WP 0009 00).

ORIENTATION
Throughout this manual, all directions (right, left, upper, lower, top, bottom, clockwise, and
counterclockwise) are given from the rigger’s point of view, as the rigger stands at the tension plate end of
the packing table, facing the apex-hook end of the table.

1. Top. That portion of the equipment that is farthest from the packing table surface.

2. Bottom. That portion of the equipment that is nearest to the packing table surface.

UPPER END OF PACKING TABLE

LOWER END OF PACKING TABLE

RIGGER’S POSITION

Change 1 0011 00-6

 TM 10-1670-272-23&P 0011 00

PREPARING THE PARACHUTE FOR PROPER LAYOUT

Prepare the parachute as follows:

1. Place packing tools in convenient locations on the packing table.

2. Lay the canopy assembly lengthwise on the packing table, and attach the canopy to the packing table
apex hook.

3. Attach the connector links to the tension plate and apply enough tension to keep the canopy on the
table.

REMOVING TANGLES/TWISTS FROM APEX LINES

Remove tangles or twists from the apex lines as follows:

1. Locate radial tape 30, at lower lateral band, and follow it to apex line 30, removing turns from the
canopy.

2. Continue tracing apex line 30 to the bridle loop; remove any tangles/twists by rotating bridle loop until
lines are in proper location.

0011 00-7 Change 1

 TM 10-1670-272-23&P 0011 00

REMOVING INVERSION
To remove an inversion, proceed as follows:

1. Skirt inversion. Check to see that the vent cap is on the outside of the apex lines. If the vent cap is on
the inside of the apex lines, and the pocket bands are on the inside of the lower lateral band, the
canopy is inverted through the skirt. Remove an inversion through the skirt as follows:

NOTE

Be careful not to pass the apex out at the orifice, or around the radial
lines at the orifice.

a. Remove canopy from apex hook.

b. Pass apex down through the canopy and out the skirt between the two adjacent suspension lines.

Change 1 0011 00-8

 TM 10-1670-272-23&P 0011 00

c. Reattach the canopy to the apex hook.

2. Orifice inversion. Two kinds of orifice inversions may be encountered. Remove orifice inversions as
follows:

a. Apex through the orifice of the canopy. If the pocket bands appear on the outside and the vent
cap appears on the inside, the apex is inverted through the orifice. To remove this kind of orifice
inversion, locate the two radial lines through which the canopy has been inverted, and pass the
apex lines down through the canopy and out the orifice between these two radial lines.

b. One or two risers through the orifice of the canopy. For this type of orifice inversion, the vent cap
is on the outside of the apex lines. If half the V-tabs are on the inside of the lower lateral band,
and half are on the outside, the right or left riser is inverted through the orifice. If all the V-tabs are
on the outside of the lower lateral band, both risers are inverted through the orifice. One or both
risers may be inverted in one of two directions, either down through the orifice and out of the
canopy skirt, or up the canopy skirt and out the orifice. To remove this type of inversion, proceed
as follows:

(1) Place the suspension lines and canopy gores into group separation.

(2) Determine whether the left or right riser, or both, are inverted and the direction of the
inversion.

(3) Remove the connector links from the tension plate and reverse the direction of the riser, or
risers, through the lower portion of the canopy below the orifice.

(4) Reinstall the connector links on the tension plate.

REMOVING TURNS, TANGLES/TWISTS FROM SUSPENSION LINES

To properly locate suspension lines, proceed as follows:

NOTE

Suspension lines 1 thru 30 are divided into two groups, 1 thru 15 are
in the left group and 16 thru 30 are in the right group.

1. Locate the top center gore of the canopy and divide the suspension lines into the left and right groups
(see illustration on next page).

0011 00- 9 Change 1

 TM 10-1670-272-23&P 0011 00

2. Place a packing weight around the right group of lines and the right control line, and move the weight
toward the risers; check for turns, tangles, and twists.

3. Remove turns, tangles and twists as follows:

Change 1 0011 00-10

 TM 10-1670-272-23&P 0011 00

a. Turns. A turn occurs when one group of suspension lines rotates around the other group.

(1) Remove the connector links from the tension plate and remove a turn by rotating the risers in
the direction opposite to the direction of the turn.

(2) Reposition the connector links on the tension plate.

b. Tangles. To remove tangle(s), keep the two groups of lines separated and work the tangle(s) as
close to the connector links as possible. Detach connector links from the tension plate.

(1) Select the top line(s) that form the tangle and, with the left hand, lift the line(s) away from the
other lines.

0011 00- 11 Change 1

 TM 10-1670-272-23&P 0011 00

(2) Reach through the opening, created by lifting the suspension lines, with the right hand.

(3) Pull the risers, or pack assembly, through the opening. Do not permit risers to turn.

Change 1 0011 00-12

 TM 10-1670-272-23&P 0011 00

(4) Replace connector links on tension plate.

c. Twists. A twist occurs when the suspension lines within one group become improperly crossed.

NOTE

Insert packing weight around lines 1 and 15 while working on lines

16 and 30.

(1) To remove twists, grasp top and bottom inside lines (lines 1 and 30) at skirt of canopy and
trace them to connector links
.

0011 00- 13 Change 1

 TM 10-1670-272-23&P 0011 00

(2) Remove twists from one group at a time by rotating risers until lines are in proper location on
the connector links.

4. Check the suspension lines for proper layout. Left group should have line 1 on the top inside of the
connector link and line 15 on the bottom inside of the connector link. The right group will have line 30
on the top inside of the connector link and line 16 on the bottom inside of the connector link. Ensure
the control lines are routed to the inside of the risers and are not routed around any of the suspension
lines.

5. Assemble parachute components in accordance with Assembling the MC1-1B/MC1-1E Parachute

(WP 0004 00).

Change 1 0011 00-14

 TM 10-1670-272-23&P 0011 00

6. Parachute is now in proper layout, and ready for folding the gores.

7. Rigger check number 1.

0011 00- 15 Change 1

 TM 10-1670-272-23&P 0011 00

FOLDING THE GORES

After the parachute has been properly laid out, proceed as follows:

1. Move to the apex end of the table. Grasp the upper lateral band on both sides, with your fingers
through the apex vent lines. Apply pressure toward the tension end of the table, until the upper lateral
band is aligned.

2. Move to the lower end of the table and apply first tension on the parachute until the suspension lines
are taut and rise off the table.

3. Move to the lower lateral band of the canopy, with the right group of lines in the left hand. Lift the right
group of suspension lines, with the left hand at the anti-inversion net. Hold top center anti-inversion
net in position, with the right hand, and flip the right group of gores over the left group.

Change 1 0011 00-16

 TM 10-1670-272-23&P 0011 00

4. Start with line number 16 in the right hand. Pick up line 17 with the left hand and lift straight up until
slack is removed from the lower lateral band.

5. With a smooth continuous movement, bring the left hand over the head. When the gore inflates, place
line 17 on top of line 16. Make certain the V-tabs are facing down and that the gore material folds to
the right side.

6. Continue folding the gores until you reach line No. 26. Pick up the control line and put it between
suspension line No. 26 and No. 25. Continue folding the gores until you reach suspension line No. 30.

0011 00- 17 Change 1

 TM 10-1670-272-23&P 0011 00

7. Hold the right group of lines with the left hand. With the right hand (fingers pointing down) scissor the
right group of lines between the 1st and 2nd fingers.

8. Rotate this group of lines clockwise until the fingers are tilted slightly upward, so that line 30 is on the
bottom and line 16 is on the top.

Change 1 0011 00-18

 TM 10-1670-272-23&P 0011 00

9. Starting with line 1, fold the left group of gores until you reach line No. 6. Pick up the control line and
put it between suspension line No. 5 and No. 6. Continue folding the gores until you reach suspension
line No.14. Pick up top anti-inversion net approximately 6- to 8-inches from suspension line No. 15.
Raise it as you insert your elbow inside the anti-inversion net, placing suspension line No.15 over your
left shoulder. Drape the last gore on the left and the next to last gore on the right.

10. Insert the two groups of lines into a line separator, with the left group of lines in the left slot and the
right group of lines in the right slot.

0011 00- 19 Change 1

 TM 10-1670-272-23&P 0011 00

11. Hold base of line separator tight against canopy anti-inversion net; pull canopy off the table so that all
gores drape to the right of the table.

12. Turn the line separator counterclockwise so the base is down, and slide it back on the table.

Change 1 0011 00-20

 TM 10-1670-272-23&P 0011 00

13. Place packing weight on suspension lines next to the separator.

14. Apply additional tension to the suspension lines. After second tension is applied, rough dress top and
bottom gore to ensure the last gore was sub-divided properly.

NOTE

Pull out the slack of the riser to even out the tension between the
control lines and the suspension lines.

0011 00- 21 Change 1

 TM 10-1670-272-23&P 0011 00

15. Placing the middle finger between the two groups of suspension lines, grasp the top part of the anti-
inversion net and separate the left side from the right side.

16. Continue separation of the canopy until you reach the apex.

WARNING

Dress each gore section and the anti-inversion net to insure no

foreign material is present. If foreign material is present, repeat fine
dress procedures. Failure to do so could cause serious injury or
death to the parachutist.

NOTE

Make sure that radial tape No. 30 is on the top.

17. Fine dress the bottom gores by pulling gently on the left and right sides of the canopy, moving from
the lower lateral band to the apex.

Change 1 0011 00-22

 TM 10-1670-272-23&P 0011 00

18. Dress the top gores by pulling gently, while moving to the lower lateral band. The canopy is now in a
flat-fold.

19. Fine dress the lower lateral band and anti-inversion net. Starting with the left group of gores, dress
each gore section of the lower lateral band; work from the bottom to the top. Repeat the procedure for
the right side.

0011 00- 23 Change 1

 TM 10-1670-272-23&P 0011 00

NOTE

Dress gore nos. 25, 26, 27, 28, 29, 30, 1, 2, 3, 4, 5, and 6, above the
orifice, by pulling the folded edges until they are aligned with the
edges of the other gores. Count the gore edges at the top of the
orifice to ensure that 15 gores are located on each side of the
canopy.

20. This completes the flatfold of the canopy.

Change 1 0011 00-24

 TM 10-1670-272-23&P 0011 00

21. Raise the top radial tape (no. 30) and check for a clear channel. Also check to ensure that the left
control line is with the left suspension line group, and the right control line is with the right suspension
line group.

NOTE

If material is in the channel, repeat the fine dressing procedure.

22. Rigger check number 2.

LONGFOLDING THE CANOPY

After flat folding, the canopy is ready for long folding. Proceed as follows:

1. The anti-inversion net and the lower lateral band of the canopy will be folded 180 degrees, with the
right group folded first, so that the lower edges are parallel to each other and are slightly extended
(approximately 2-inches) over the two groups of suspension lines.

0011 00- 25 Change 1

 TM 10-1670-272-23&P 0011 00

2. Grasp the edges on the right side of the anti-inversion net with the left hand, and the lower lateral
band in the right hand. Fold edges slightly over suspension lines/radial seam (approximately
2-inches).

3. Place the first packing weight on the lower lateral band.

4. Continue folding the right group in the same manner, until you reach halfway up the canopy. Place
the second packing weight.

Change 1 0011 00-26

 TM 10-1670-272-23&P 0011 00

5. Continue folding until you reach approximately 48-inches from the apex. Then place the third packing
weight.

6. Fold the left group of the anti-inversion net and lower the lateral band over the right group.

7. Fold the left group of gores in a similar manner; adjust the packing weights to hold both groups of
gores.

NOTE

After longfolding, ensure there is no rollback. The parachute should

be approximately 10-inches wide at the skirt (lower lateral band) and
6-inches wide where the fold breaks near the apex.

0011 00- 27 Change 1

 TM 10-1670-272-23&P 0011 00

8. Longfolding is completed.

TYING THE STATIC LINE TO THE BRIDLE LOOP OF THE CANOPY

Before stowing the canopy in the deployment bag, the canopy must be attached to the static line buffer
loop. Proceed as follows:

WARNING

Inspect the deployment bag and the entire static line, including that
portion under the sleeve. Failure to do so may cause serious injury
or death to personnel.

Change 1 0011 00-28

 TM 10-1670-272-23&P 0011 00

1. Pull the bottom of the deployment bag up through the opening of the deployment bag until the static
line buffer loop and the breakcord attaching strap loop are visible.

2. To secure the static line while stowing the canopy, S-fold the static line and roll the suspension line
protector flap around the folded line. Secure the ends of the protector cover with rubber retainer
bands.

STATIC LINE

RUBBER
RETAINER
BAND

3. For the USL, double a 36-inch length of type I, ¼-inch cotton webbing. Pass one end of the doubled
webbing through both plies of the static line buffer loop, through the bridle loop of the canopy, and
back through both plies of the static line buffer loop.

4. For the standard static line, double a 36-inch length of Type I, ¼-inch, cotton webbing. Pass one end
of the double webbing through the static line buffer loop, through the bridle loop of the canopy, and
back through the static line buffer loop.

0011 00- 29 Change 1

 TM 10-1670-272-23&P 0011 00

5. Secure the ends of the cotton webbing, over the buffer loop, with a surgeon’s knot and locking knot.
Allow approximately a 3-inch loop between the static line buffer loop and the bridle loop. Trim the
ends to approximately 2-inches.

6. Rigger check number 3.

STOWING THE CANOPY

Proceed to stow the canopy as follows:

1. Release tension and unhook the bridle loop from the apex hook. Hold the deployment bag open with
the right hand and grasp the canopy near the apex. Place the apex of the canopy into the upper right
corner of the deployment bag.

Change 1 0011 00-30

 TM 10-1670-272-23&P 0011 00

2. Grasp the canopy with the left hand, approximately the width of the deployment bag, and place the
second stow in the upper left corner.

NOTE

Move the packing weights down the canopy as necessary.

3. Continue stowing the canopy, in alternating sides of the deployment bag, until the lower lateral band
and the anti-inversion net are reached.

0011 00- 31 Change 1

 TM 10-1670-272-23&P 0011 00

4. Grasp the lower lateral band and slide it into the center of the deployment bag.

5. With the middle finger of the right hand, placed between the left and right group of suspension lines,
grasp the anti-inversion net.

6. With the left hand, move the packing weight and line separator. Then place the left hand on the
mouth of the deployment bag; with the right hand, move the bag and slide the anti-inversion net into
the center of the deployment bag.

Change 1 0011 00-32

 TM 10-1670-272-23&P 0011 00

7. Turn the deployment bag upright, with the static line end down. When the entire canopy and net are
stowed, the suspension lines should be centered on top of the deployment bag.

CLOSING THE DEPLOYMENT BAG AND STOWING THE SUSPENSION LINES

After the canopy stow has been completed, continue as follows:

1. Pull the suspension lines over the top center of the deployment bag; fold the side flaps of the
deployment bag over the stowed canopy anti-inversion net and fold the locking stow panel over the
side flaps. Insert the locking stow loops and connector line tie loops through the slots in the locking
stow panel.

0011 00- 33 Change 1

 TM 10-1670-272-23&P 0011 00

2. Insert the stow hooks, in the locking stow loop hoods, to hold the deployment bag closed. Insert a
packing paddle through the connector line tie loops and lay the deployment bag down.

NOTE

Before making the first locking stow, pull the slack out of the risers to
even the control lines with the suspension lines.

Change 1 0011 00-34

 TM 10-1670-272-23&P 0011 00

3. Grasp all the suspension lines and form a loop that reaches from the center of the deployment bag to
2-inches beyond the hoods of the right locking stow loop.

4. Insert the right stow hook through the loop formed by the suspension lines. Ensure that the stow hook
is around all of the suspension lines.

0011 00- 35 Change 1

 TM 10-1670-272-23&P 0011 00

5. Pull the suspension line loop through the right locking stow loop. The end of the stow should extend
2-inches beyond the hood of the locking stow loop.

6. Grasp the suspension lines, approximately the width of the bag, and form a second loop that extend 2-
inches beyond the hood of the left stow loop.

7. Insert the left stow hook through the formed suspension line loop. Ensure the stow hook is around all
of the suspension lines.

Change 1 0011 00-36

 TM 10-1670-272-23&P 0011 00

8. Pull the suspension line loop through the left locking stow loop. The end of the stow should extend
2-inches beyond the hoods of the locking stow loop.

NOTE

Flatten the deployment bag.

9. Extend the suspension lines to the upper right corner of the deployment bag. Form the first regular
stow.

NOTE

Ensure the stow hook is around all suspension lines when making
stows. Regular stows should extend through the stow loops to the
outer edge of the reinforcement panels, but not more than 1-inch
beyond the outer edge of the stow loop.

0011 00- 37 Change 1

 TM 10-1670-272-23&P 0011 00

10. Using a stow hook, make the first regular stow in the upper right stow loop.

11. Rigger check number 4.

12. Rotate the deployment bag one quarter-turn clockwise.

13. Grasp the suspension line, approximately the width of the deployment bag; slide the bag on the table
and form the second regular stow in the upper left corner of the bag.

14. Using a stow hook, make a second regular stow in the upper left corner.

Change 1 0011 00-38

 TM 10-1670-272-23&P 0011 00

15. Continue alternating the stows from right to left until approximately 8- to 10-inches of suspension lines
are left unstowed.

16. Rigger check number 5.

NOTE

There should be a minimum of 8 stows on each panel.

17. Remove the connector links from the tension plate.

18. Fold the excess slack from the remaining suspension lines over the stowed suspension lines.

TYING CONNECTOR LINKS AND SUSPENSION LINE PROTECTIVE COVER

To secure the packed deployment bag, continue as follows:

1. Unroll suspension line protector cover and cover suspension lines.

NOTE

Ensure that the risers are still in proper layout.

0011 00- 39 Change 1

 TM 10-1670-272-23&P 0011 00

2. Using a 14-inch length of Type I, ¼-inch, cotton webbing, pass an end through the right bottom
connector link tie loop, ensuring the control lines are to the inside, through the right pair connector
links, through the top right connector link tie loop, and through the cover tie loop.

3. Secure all tie loops and connector links together with a surgeon’s know and a locking knot. Cut
excess webbing; leave the end approximately 2-inches long.

4. Secure the left tie loops and connector links using procedures in steps 2. and 3., above.

Change 1 0011 00-40

 TM 10-1670-272-23&P 0011 00

5. Enter deployment bag number in the NAVWPNS or NAWCWPNS Premeditated Parachute Record or
the DA Form 3912 log record book.

CLOSING THE PACK TRAY

To stow the packed deployment bag in the pack tray, proceed as follows:

1. With the right hand, hold the risers in place next to the canopy release assembly. With the left hand,
grasp the edge of the pack tray. Slide pack tray forward approximately halfway up the risers. Spread
pack tray flaps.

0011 00- 41 Change 1

 TM 10-1670-272-23&P 0011 00

2. Slip risers through riser slots in upper flap of the pack tray. U-fold the risers onto the pack tray.

Risers

3. While holding folded risers in place, grasp the static line at the end of the deployment bag, and rotate
the bag onto the pack tray.

Change 1 0011 00-42

 TM 10-1670-272-23&P 0011 00

4. Remove twists from the static line and fold the static line across the deployment bag so that the pack-
opening loop is up and in the center of the bag. Fold remaining sleeve portion of the static line under
the upper end of the deployment bag.

NOTE

Be sure that none of the webbing passes over the static line.

5. Lay pack-closing flaps over the deployment bag. Thread a 40-inch length of Type I, ¼-inch, cotton
webbing through the lower end flap closing loop, the static line pack opening loop, the left side flap
closing loop, the upper end flap closing loop, under the static line, and through the right side flap
closing loop.

0011 00- 43 Change 1

 TM 10-1670-272-23&P 0011 00

6. Pull loops close enough together to have an opening, of approximately 2-inches in diameter, between
loops. Tie webbing with a surgeon’s knot and a locking knot, making a tie between the right side flap
and the lower end flap closing loops. Cut the webbing approximately 2-inches from the knot. Keep the
remaining lengths for the next connector link’s ties.

Change 1 0011 00-44

 TM 10-1670-272-23&P 0011 00

7. Using a packing paddle, insert flaps and dress the pack. The pack tray is now closed.

8. Rigger check number 6.

STOWING THE STATIC LINE

After the pack tray is dressed, stow the static line as follows:

1. Stowing the standard 15-foot static line.

0011 00- 45 Change 1

 TM 10-1670-272-23&P 0011 00

NOTE

Install the necessary number of rubber bands, on the left and right
outer and inner static line retainer band keepers, with a girth hitch.
Static line stows are secured with two-turns of a rubber band. The
end of each stow must not be longer than 2-inches from the rubber
band. Ensure static line is not twisted.

a. Rotate the pack tray a quarter-turn counterclockwise. Make the first static line stow to the lower
right side stow bar. Make the second static line stow to the lower left stow bar. Make the third
static line stow to the lower right inner stow bar. Make the fourth static line stow to the lower left
inner stow bar. Make the fifth static line stow to the middle right inner stow bar. Make the sixth
static line stow to the inner stow bar. Make the seventh static line stow to the upper right inner
stow bar. Make the eighth static line stow to the upper left inner stow bar.

First
Stow
Static
Line

Inner Static
Line Stow Bar

Outer Static
Line Stow Bar

Change 1 0011 00-46

 TM 10-1670-272-23&P 0011 00

b. Fold remaining static line in half, and rotate it a quarter-turn counterclockwise. Pass the folded
end through the static line slack retainer. After hooking the static line snap hook to the static line
pack opening loop, pass the folded end under the stowed line. Pull the static line taut, and slip the
folded end of the line under the lower end flap.

NOTE

The following is an alternate method for completing the static line stow.

0011 00- 47 Change 1

 TM 10-1670-272-23&P 0011 00

c. After making the static line stows described in step a., above, stow the running end of the static
line as follows:

(1) Double the remaining static line length and rotate the doubled length one-quarter turn
counterclockwise.

(2) Connect the static line snap hook to the left-side retainer band keeper.

(3) Pass the folded end of the static line through the static line slack retainer (at the pack upper
end), under the stowed line (toward the pack lower end), and draw the doubled line taut.

(4) Insert the static line folded-end under the pack lower-end flap.

2. Stowing the USL.

NOTE

Install the necessary number of rubber bands, on the left and right
outer and inner static line retainer band keepers, with a girth hitch.
Static line stows are secured with two turns of a rubber band. The
end of each stow must not be longer than 2-inches from the rubber
band. Ensure static line is not twisted.

Change 1 0011 00-48

 TM 10-1670-272-23&P 0011 00

a. Rotate the pack tray a quarter-turn counterclockwise. Make the first static line stow to the lower
right outer stow bar. Make the second static line stow to the lower left outer stow bar. Make the
third static line stow to the lower right inner stow bar. Make the fourth static lie stow to the lower
left inner stow bar. Make the fifth static line stow to the middle right inner stow bar. Make the
sixth static line stow to the middle left inner stow bar. Make the seventh static line stow to the
upper right inner stow bar. Make the eighth static line stow to the upper left inner stow bar.

b. Secure the snap hook to the upper right outer stow bar. Stow the remaining static line in the static
line slack-retainer. Stow the excess under the existing stows and the bottom of the pack tray
protector flap.

Static Line
Slack Retainer

3. Stowing the USL and USL extension.

NOTE

The girth hitch, attaching the USL extension to the USL, must be
centered between the ninth and tenth stows. If necessary, adjust
the previous stows. The end of each stow must not be longer than
2-inches from the rubber band.

0011 00- 49 Change 1

 TM 10-1670-272-23&P 0011 00

c. Rotate the pack tray a quarter-turn counterclockwise. Make the first static line stow to the lower
right outer stow bar. Make the second static line stow to the lower left outer stow bar. Make the
third static line stow to the lower right outer stow bar. Make the fourth static line stow to the lower
left outer stow bar. Make the fifth static line stow to the lower right inner stow bar. Make the sixth
static line stow to the lower left inner stow bar. Make the seventh static line stow to the middle
right inner stow bar. Make the eighth static line stow to the middle left inner stow bar. Make the
ninth static line stow to the upper right inner stow bar. Make the tenth static line stow to the upper
left inner stow bar.

d. Secure the snap hook to the upper right outer stow bar. Stow the remaining static line in the static
line slack-retainer. Stow the excess under the existing stows and the bottom pack tray protector
flap.

3. Rigger check number 7.

ARMY PARACHUTE LOG RECORD

Beginning with the initial packing of a parachute, and each time a parachute is repacked, the log record
must be completed, as follows:

1. Remove the log record (DA Form 3912, AFTO 391, and NAV WPNCEN or NAVN WPNS CL
13512/11) from the parachute inspection data pocket (log record pocket) located on the riser.

Change 1 0011 00-50

 TM 10-1670-272-23&P 0011 00

2. Make entries on the JUMP, INSPECTION AND REPACK DATA page, as follows:

a. Date. Enter the day, month and year of each packing action.

b. Bag number. Entry made in the Typing Connector links and Suspension line Protective Cover
paragraph, step 5., above.

c. Routine inspection. No entry required.

d. Jumps or dropped. No entry required.

e. Repack. For initial packing, enter IN; thereafter, enter a checkmark in the column each time the
parachute is repacked.

f. Packer’s name. The packer performing the packing will sign this entry.

g. Inspector’s name. The inspector who has performed the pack-in-process inspection will sign this
entry.

h. Unit. Enter the unit designation to which the packer and/or inspector is assigned.

3. Return the log record to the log record pocket upon completion of the entries. Packing is now
completed.

STANDARD 5-FOOT STATIC LINE EXTENSION

For units not using the USL, a standard 5-foot static line extension is required when jumping the CH-46
and CH-53 helicopters. The USL 5-foot extension is required when jumping the C-17. The static line
extensions will be attached and stowed as follows:

0011 00- 51 Change 1

 TM 10-1670-272-23&P 0011 00

NOTE

For units authorized to jump the C-2A aircraft, a 10-foot static line
extension is required. Manufacture IAW NAVSEA T.O. 300-AW-
MMO-010.

1. Attaching the standard 5-foot extension to a standard 15-foot static line.

a. Attach the standard 5-foot extension to a 15-foot static line by attaching the snap hook on the
static line to the ring on the extension. Insert and bend the safety pin.

5-Foot Extension

Ring

Snap Hook

5-Foot Extension Cover

15-Foot Static Line

Safety Pin

Lanyard

b. Slide the cover that is permanently attached to the 5-foot extension, down over the snap hook of
the 15-foot static line, and tie and tape in place using 2-inch wide masking tape.

5-Foot Extension Cover

Tape

c. Stow the standard static line (with standard 5-foot static line extension attached) in accordance
with the “Stowing the USL and USL Extension” procedures detailed above.

Change 1 0011 00-52

 TM 10-1670-272-23&P 0011 00

ATTACHING USL AND USL EXTENSION

1. Attaching the USL extension to the USL.

a. Take the parachute off, or perform the task while the jumper is wearing the parachute.

b. Unstow the static line.

c. Remove the snap hook from the USL:

(1) Remove the snap hook by grasping the sewn portion of the static line, just below the snap
hook.

(2) Push the static line towards the snap hook, this will allow you to loosen the girth hitch. Once
you loosened the girth hitch, push the 3½ -inch loop up the sides of the snap hook. Then
push the static line from the bottom to the top so that you can pass the 3½-inch loop over the
top of the snap hook.

(3) Pull the static line back through the opening in the base of the snap hook.

d. Attach the snap hook to the USL extension:

(1) Position the snap hook so the opening is facing outward; lay the static line flat; ensure the
green ID marking thread is on top, also ensure the green ID marking thread is on the outside
of the 3½-inch loop.

0011 00- 53 Change 1

 TM 10-1670-272-23&P 0011 00

(2) Pass the 3½-inch loop end of the static line through the opening in the base of the snap hook,
from the bottom to the top. Pass the top of the snap hook through the static line loop.

(3) Continue passing the snap hook through the static line loop; pull the excess static line back
through the opening in the base of the snap hook until the loop is past the snap hook opening.
Turn the 3½-inch loop outward so the green ID marking thread is now on the inside.

(4) Slide the loop down to the bottom of the snap hook until the static line is fully seated in the
indents on the side of the snap hook, forming a taut girth-hitch. Ensure there are no twists in
the static line snap hook loop.

e. Attach the USL extension to the USL:

(1) Pass the 3½-inch loop on the USL through the 2-inch buffer loop on the USL extension.

(2) Pass the snap hook of the USL extension through the 3½-inch loop on the USL.

(3) Continue passing the snap hook through the 3½-inch loop until a taut girth hitch is made
securing the USL extension to the USL. There will be a half-twist in the 3½-inch loop when
forming the girth-hitch.

2. Stowing the USL and USL Extension. Stow the USL and USL extension in accordance with the
“Stowing the USL and USL Extension” paragraph above.

3. Removing the USL extension from the USL:

a. Take the parachute off, or perform the task while the jumper is wearing the parachute.

b. Unstow the static line.

c. Remove the snap hook from the USL extension:

(1) Remove the snap hook by grasping the sewn portion of the static line just below the snap
hook.

(2) Push the static line towards the snap hook, this will allow you to loosen the girth-hitch. Once
you have loosened the girth-hitch, push the 3½-inch loop up the sides of the snap hook. Then
push the static line from the bottom to the top so that you can pass the 3½-inch loop over the
top of the snap hook.

(3) Pull the static line back through the opening in the base of the snap hook.

d. Remove the USL extension:

(1) Secure the USL extension in your right hand and grasp the USL with your left hand.

(2) With the left hand push the USL towards the USL extension. Once the girth-hitch is loosened,
pull the webbing of the USL extension through the 3½-inch loop on the USL, until it is
removed from the USL.

(3) Slide the 2-inch buffer loop over the top of the USL.

e. Attach the snap hook to the USL:

Change 1 0011 00-54

 TM 10-1670-272-23&P 0011 00

(1) Position the snap hook so the opening is facing outward; lay the static line flat; ensure the
green ID marking thread is on top, also ensure the green ID marking thread is on the outside
of the 3 ½-inch loop.

(2) Pass the 3½-inch loop end of the static line through the opening in the base of the snap hook,
from the bottom to the top. Pass the top of the snap hook through the static line loop.

(3) Continue passing the snap hook through the static line loop; pull the excess static line back
through the opening in the base of the snap hook until the loop is past the snap hook opening.

(4) Turn the 3½-inch loop outward so the green ID marking thread is now on the inside.

(5) Slide the loop down to the bottom of the snap hook until the static line is fully seated in the
indents on the side of the snap hook, forming a taut girth-hitch. Ensure there are no twists in
the static line snap hook loop.

4. Stow the USL. Stow the USL in accordance with the “Stowing the USL” paragraph above.

FOLDING THE HARNESS

For easier handling of the MC1-1B/MC1-1E parachute, after packing is completed, fold the harness as
follows:

1. Turn the pack over and place the kit bag on top of the pack tray; attach the chest-strap quick-ejector
snap to the adjusting V-ring.

Kit Bag

Chest
Strap
Snap

0011 00- 55 Change 1

 TM 10-1670-272-23&P 0011 00

2. Pull the leg-strap through the kit bag carrying handle, under the diagonal back-straps; criss-cross the
leg straps, and attach the quick-ejector snap to the adjusting V-ring.

DIAGONAL
BACKSTRAP

LEG STRAP

KIT BAG
CARRYING
HANDLE

ADJUSTING
V-RING

QUICK-EJECTOR
SNAP

Change 1 0011 00-56

 TM 10-1670-272-23&P 0011 00

3. Grasp the saddle and pull straight up. Take the waistband through the saddle and completely around
the harness located under the kit bag (pull tightly). Thread the waistband back through the saddle,
into the waistband adjuster, and then back through the waistband adjuster, forming a quick-release.

QUICK
RELEASE

END OF WORK PACKAGE

0011 00-57 /(58 Blank) Change 1

 TM 10-1670-272-23&P 0012 00

UNIT MAINTENANCE
MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
SEWING PROCEDURES

THIS TASK COVERS:

• Basting and Temporary Tacking
• Stitching and Restitching
• Darning
• Zig-Zag Sewing
• Patching

INITIAL SETUP:

Equipment Condition Personnel Required

Unpacked. Canopy with defects recorded. 92R(10) Parachute Rigger
Clean.
Materials/ Parts
Tools Specified in paragraph applicable to the item
Specified in paragraph applicable to the item being repaired.
being repaired.
References
WP 0014 00

NOTE

Sewing requirements will vary according to the type of item being

repaired and the type of repair being made. The type of sewing
machine, type of thread, the stitch range, and the stitch pattern (if
applicable) required to accomplish a sewing procedure will be
specified in the paragraph applicable to the item being repaired. All
original stitching that is cut during the performance of a sewing
procedure will be removed from the applicable item. Immediately
after the accomplishment of a machine sewing procedure, trim
thread ends to a point as close as possible to the material that has
been sewn.

NOTE

Repair and replacement of parachute components is performed in

accordance with the general repair instruction in this section and in
specific paragraphs applicable to the item being repaired.
Fabrication is a means of replacing an air delivery item component
that is damaged beyond repair and not an issue item. Though the
act of fabrication is a replacement-type action, the function is
actually a method of repairing an end item. Since most fabrication
pertains to components that are peculiar to parachutes, the
fabrication of components that are most general in nature will be
detailed in the following paragraphs.

0012 00-1
 TM 10-1670-272-23&P 0012 00

BASTING AND TEMPORARY TACKING

Basting and temporary tacking are hand-sewing methods used to temporarily hold layers of cloth fabric
together while a repair is being performed. The following is a list of procedures that apply to basting and
temporary tacking actions:

1. Basting and temporary tacking should be made using thread that is of a contrasting color to the
material being worked.

2. Basting and temporary tacking will be performed using a single strand of size A, nylon thread, or ticket
No. 24/4 cotton thread.

3. When basting, do not tie knots at any point in the thread length. Also, the sewing should be made
with two stitches per inch.

4. Immediately upon completion of a repair, remove previously made basting or temporary tacking.

STITCHING AND RESTITCHING

Perform stitching and restitching as follows, refer to tables 1 and 2.

1. Parachute canopy assemblies. The stitching and restitching made on parachute canopies should be
accomplished with thread that is contrasting in color to the fabric being restitched. If contrasting color
thread is not available, thread of matching color may be used, providing all other specifications are
met. Straight stitching and restitching on parachute canopy assemblies should be locked by at least
2-inches at each end of a stitch row, when possible. Zig-Zag stitching does not require locking;
however, zig-zag restitching should extend at least ¼-inch into undamaged stitching at each end, hen
possible. When restitching parachute canopy assemblies, stitch directly over the original stitching and
follow the original stitch pattern as closely as possible.

Table 1. Sewing Machine Code Symbols

CODE SYMBOL SEWING MACHINE

SEWING MACHINE, INDUSTRIAL: General sewing; 301 stitch; light duty;

LD
NSN 3530-01-177-8590.
SEWING MACHINE, INDUSTRIAL: Zig-zag; 308 stitch; medium duty;
MD ZZ
NSN 3530-01-181-1421.
SEWING MACHINE, INDUSTRIAL: Zig-zag; 308 stitch; light duty;
LD ZZ
NSN 3530-01-181-1420.
SEWING MACHINE, INDUSTRIAL: General sewing; 301 stitch; heavy duty;
HD
NSN 3530-01-177-8588.
SEWING MACHINE, INDUSTRIAL: General sewing; 301 stitch; medium duty;
MD
NSN 3530-01-177-8591.
SEWING MACHINE, INDUSTRIAL: Darning; lock stitch;
DN
NSN 3530-01-177-8589.
SEWING MACHINE, INDUSTRIAL: 301 stitch; light-heavy duty;
LHD
NSN 3530-01-186-3079.
SEWING MACHINE, INDUSTRIAL: 301 stitch; double-needle;
ND
NSN 3530-01-182-2873.

0012 00-2
 TM 10-1670-272-23&P 0012 00

Table 2. Stitching and Restitching Specifications

RECOMMENDED
SEWING STITCHES THREAD
COMPONENT
MACHINE PER INCH SIZE
(CODE SYMBOL)

Bridle Loop LHD 5 to 8 6

7 to 11
Gore Section LD DN LDZZ E
DARN
Pocket Band LD 7 to 11 E
Suspension Line MD ZZ 7 to 11 E
LD E
V-Tab 7 to 11
LD ZZ E
Control Line LD ZZ 7 to 11 E
Vent Line MD ZZ 7 to 11 E
Upper Lateral Band MD ZZ 7 to 11 E
Lower Lateral Band LD ZZ 7 to 11 E
Radial Seam LD 7 to 11 E
Radial Tape LD ZZ 7 to 11 E
Riser Assembly LHD 5 to 8 6
Log Record Pocket LD 7 to 11 E
Control Line Channel MD ZZ 7 to 11 E
Guide Ring Retaining Strap MD 7 to 11 E
Harness Assembly
Elastic Slack Retainer Webbing LD 7 to 11 E
Canopy Release Pad MD 7 to 11 E
Ejector Snap Pad MD 7 to 11 E
Horizontal/Diagonal Back-strap LHD 5 to 8 6
DN Darn E or A
Pack Tray
LD 7 to 11 E
Back-strap Keeper LHD 5 to 8 3
Back-strap Retainer LHD 5 to 8 3
Pack Closing Loop LD 7 to 11 E
Retainer Band Keeper LD 7 to 11 E
Static Line Slack Retainer LD ZZ 7 to 11 E
Waistband LHD 5 to 8 3
LHD 5 to 8 3
Waistband Adjuster Panel
LD 7 to 11 E
Waistband Extension MD 7 to 11 E

0012 00-3
 TM 10-1670-272-23&P 0012 00

Table 2. Stitching and Restitching Specifications - Continued

RECOMMENDED
SEWING STITCHES THREAD
COMPONENT
MACHINE PER INCH SIZE
(CODE SYMBOL)

Deployment Bag DN Darn E or A

Stow Loops LHD 5 to 8 3
Edge Reinforcement Webbing LD 7 to 11 E
Locking Stow Loop Hood LD 7 to 11 E
Suspension Line Protector Cover
LD 7 to 11 E
Tie-Down Loop
Static Line LHD 5 to 8 6

2. Other parachute items. Stitching and restitching on other parachute items constructed from cloth,
canvas, and webbing should be accomplished with thread that matches the color of the original
stitching, when possible. All straight stitching should be locked by backstitching at least ½-inch.
Restitching should be locked by overstitching each end of the stitch formation by ½-inch. Zig-zag
stitching does not require locking; however, zig-zag restitching should extend at least ¼-inch into
undamaged stitching at each end, when possible. Restitching should be made directly over the
original stitching; follow the original stitch pattern as closely as possible.

DARNING
(Refer to Tables 1 and 2). Darning is a sewing procedure used to repair limited size holes, rips, and tears.
A darning repair may be made either by hand or by sewing machine, depending upon the method
preferred and the availability of equipment. However, a darning machine should be used to darn small
holes and tears where fabric is missing. A darning repair will be preformed using the following
procedures, as appropriate:

1. Machine darning. Proceed as follows:

a. Using an authorized marking aid of contrasting color, mark a square around the damaged area
and ensure the marking is at least ¼-inch back from each edge of the damaged area.

b. Darn the damaged area by sewing the material in a back and forth manner, using size A or E
nylon thread.

c. Turn the material and stitch back and forth across the stitching made in b., above, until the hole or
tear is completely darned.

0012 00-4
 TM 10-1670-272-23&P 0012 00

d. If applicable, restencil informational data; gore number(s), or identification marks using the criteria
in WP 0014 00.

2. Hand darning. When repair of a hole or tear is made by hand darning, the darn should match the
original weave of the damaged material as closely as possible. Hand darning will be performed as
follows:

a. Using an authorized marking aid of contrasting color, mark a square around the damaged area
and ensure the marking is at least ¼-inch back from each edge of the damaged area.

b. Using a darning needle and a length of size A or E nylon thread, begin darning at one corner of
the marked area. Working parallel with the marking, pass the needle and thread back and forth
through the material until the opposite diagonal corner of the marked area is reached.

Stitching

c. Turn the material and weave the needle and thread back and forth across the stitching made in b.,
above, until the hole is completely darned.

Hand Darning Completed

0012 00-5
 TM 10-1670-272-23&P 0012 00

d. If applicable, restencil informational data or identification marks as outlined in WP 0014 00.

ZIG-ZAG SEWING
(Refer to Tables 1 and 2). Components of the MC1-1B/MC1-1E, except the parachute canopy, that have
sustained cut or tear damage, may be repaired by zig-zag sewing, provided the applicable damaged area
does not have any material missing and the cut or tear is straight or L-shaped. Should the damaged area
be irregular shaped or have material missing, the repair will be achieved by either darning or patching, as
required. A zig-zag sewing repair will be accomplished using a zig-zag sewing machine, with the following
procedures:

1. Set the sewing machine to the maximum stitch width.

2. Beginning at a point ¼-inch beyond one end of the cut or tear, stitch lengthwise along the damaged
area to a point ¼-inch beyond the opposite end of the cut or tear. The cited stitching procedure will
also apply to an L-shaped cut or tear.

3. If applicable, restencil informational data or identification marks a prescribed in WP 0014 00.

0012 00-6
 TM 10-1670-272-23&P 0012 00

PATCHING
Patching is a procedure used to repair holes that cannot be darned.

1. Parachute canopy patching limitations. The following is a list of patching limitations for the MC1-
1B/MC1-1E parachute assembly:

WARNING

The limitations prescribed for the parachute canopy patching will be

stringently adhered to under all circumstances and without any
deviations. Failure to do so may result in death or serious injury to
personnel.

a. A patch will not be applied to a damaged area that has been previously patched.

b. There is no limitation to the number of patches, or size of patch, made to each canopy gore
section or gore panel. However, determination should be made as to the most economical
method to be used, i.e., two or more patches versus one large patch, or one large patch versus a
section replacement. A patch applied to a parachute canopy may extend from radial seam to
radial seam.

c. Use no more than two mending cloth patches on a canopy section. Limit the size of the finished
patch to 10-inches. Round the corners of the patches to 1-inch radius. Use size E nylon thread,
1
and sew a row of 7 to 11 stitches per inch, /16-inch in from the outer edge of the patch. Table 3
prescribes sizes of parachute mending cloth.

Table 3. Mending Cloth Patching Specifications.

DAMAGED AREA SIZE PATCH MINIMUM SIZE

1-inch to 1½-inches 2-inches
1½-inches to 2-inches 3½-inches
2-inches to 3-inches 4½-inches
3-inches to 5-inches 9-inches
5-inches to 7-inches *10-inches

*Maximum size for a canopy patch is 10-inches.

NOTE

The patch may be placed on top of the net when stitching the patch
to the lower lateral band.

0012 00-7
 TM 10-1670-272-23&P 0012 00

2. Making a basic patch. A basic patch is used to repair damaged cloth when the affected area is no
closer than 1-inch from a radial seam or lower lateral band. Should a damaged area be closer than
1-inch to the cited areas, a miscellaneous patch will be made as detailed in paragraph 3., below.
There are three methods that may be used to apply a basic patch; the procedures for performing each
method are outline in paragraphs a. and b., as follows:

NOTE

A basic patch applied to the parachute canopy by sewing will be

square or rectangular in shape. A parachute canopy basic patch,
constructed from adhesive nylon parachute mending cloth, may be
shaped rectangular or triangular, as required.

a. The sewn patch. The primary method of applying a basic patch is by sewing. When using this
method of patching on a parachute canopy, the patch will be applied to the inside of the canopy.
The deployment bag may be patched on either the inside or the outside.

Apply a sewn patch as follows:

(1) Place the repairable item on a repair table, smooth the fabric around the damaged area, and
secure the item to the table with pushpins. Do not pin the damaged area.

(2) Using an authorized marking aid of contrasting color, mark a square or rectangle around the
area to be patched.

(3) Cut the damaged fabric area along the lines made in 2., above. Further, cut the fabric
diagonally at each corner to allow a ½-inch foldback in the raw edges.

0012 00-8
 TM 10-1670-272-23&P 0012 00

(4) Make a ½-inch foldback on each raw edge. Pin and baste each foldback to complete the
prepared hole. Basting will be performed using the procedures in the BASTING AND
TEMPORARY TACKING paragraph detailed above.

(5) Using the same type of material as in the original construction, mark and cut a patch
2½-inches wider and longer than the inside measurements of the prepared hole.

(6) Center the material over the prepared hole. Pin the patch material in position.

(7) Make a ½-inch foldunder on each edge of the patch material, and baste the patch to the
prepared area. Basting will be performed using the procedures in the BASTING AND
TEMPORARY TACKING paragraph detailed above.

(8) Remove the pushpins securing the canopy to the repair table; secure the patch by stitching,
using the applicable details in STITCHING AND RESTITCHING paragraph and figure
detailed above. Make the first row of stitching completely around the patch. Turn the canopy
over and make a second row of stitching around the prepared hole. Stitching will be
performed in accordance with the STITCHING AND RESTITCHING paragraph detailed
above.

(9) If applicable, restencil informational data, or gore number, according to procedures in

WP 0014 00.

b. The parachute mending cloth patch. A second method of applying a basic patch is by use of 36-
inch-wide adhesive, nylon, parachute mending cloth. Patch limitations as outlined in paragraph 1.,
above, shall be adhered to. Apply a parachute mending cloth patch as follows:

NOTE

Age life for the nylon parachute mending cloth, prior to application, is
three years from the date of the adhesive coating, which is marked
on each roll of mending cloth. Use no more than two mending cloth
patches on a canopy section.

0012 00-9
 TM 10-1670-272-23&P 0012 00

(1) Lay out the canopy with the damaged area exposed.

(2) To facilitate the application of the mending cloth patch, place a ½- by 20- by 20-inch smooth
wooden board or similar smooth, hard-finished, rigid material (except paper board) under the
damaged area.

(3) Trim the ragged, frayed, or severely burned areas of the canopy cloth to provide a smooth
area for patch application.

(4) Using an authorized marking aid of contrasting color, mark a square, triangle, or rectangle,
as applicable, around the damaged area.

(5) Measure and cut lengths of the mending cloth to achieve the shape and size of the intended
patch. Cut the patch to provide an overlap of the damaged area using the specifications in
table 3. Round-off the corners of the patch. Patches will be prepared in duplicate to allow
for application on the inside and outside of the canopy.

(6) Remove the paper backing from the adhesive side of the mending cloth by forming a crease;
score the paper with a fingernail, and peel the paper from the adhesive coating. Ensure the
mending cloth is not damaged when scoring the paper backing.

(7) Smooth the canopy material adjacent to the damaged area on the canopy outside; place the
formed mending cloth patch over the damaged area.

(8) Using the edge of a packing paddle (or a roller), apply pressure to smooth the patch on.

(9) Apply the duplicate-shaped patch to the damaged area on the inside of the canopy, using the
1
procedures in steps 6. and 7., above. Stitch /16-inch in from the outer edge of the patch
using details from tables 1 and 2.

3. Applying a miscellaneous canopy patch. A miscellaneous canopy patch, which may be irregularly shaped,
is used to repair damaged canopy material when the location of the damaged area requires the patch to
extend into (or over) a seam, reinforcement, or lateral band. Ascertain the type of patch required for the
canopy, using the details in the illustrations ( A through I) that follow the canopy patch procedures detailed
below. Apply a miscellaneous patch to a gore section as follows:

NOTE

A canopy gore section that cannot be patched with a basic patch, as

outlines in paragraph 2., above, will be patched with a miscellaneous
patch.

NOTE

Adhesive nylon parachute mending cloth will not be used in the

construction or application of a miscellaneous canopy patch.

a. Place the canopy inside out on a repair table; smooth the fabric around the damaged area, and
secure the damaged gore section to the table with pushpins. Do not pin the damaged area of the
gore section.

0012 00-10
 TM 10-1670-272-23&P 0012 00

b. As required, cut the applicable stitching to remove or lay aside items that may interfere with the
patching process.

c. Using an authorized marking aid of contrasting color, mark a rectangle or triangle around the
damaged area. Make the mark ½-inch from any adjacent seam, reinforcement, or lateral band.

d. Prepare the damaged area by cutting along the marks made in c., above. Also make a diagonal
cut at each corner of the formed hole to permit a foldback of each raw edge.

e. To complete hole preparation, make a ½-inch foldback of each raw edge. Pin and baste each
edge foldback; use the procedures in the BASTING AND TEMPORARY TACKING paragraph
detailed above.

f. Using the same type of material as in the original canopy construction, mark and cut a patch 2½-
inches wider and longer than the inside measurements of the prepared hole

g. Center the patch material over the prepared hole. Pin the patch material in position.

h. (Make a ½-inch foldunder on each edge of the patch material and baste the patch to the prepared
area. Basting will be performed using the procedures in the BASTING AND TEMPORARY
TACKING paragraph detailed above.

i. Remove the pushpins securing the canopy to the repair table and secure the patch by stitching
according to the details illustrated below, and using the stitching specifics outlined in tables 1 and
2.

j. Make the first row of stitching completely around the edges of the patch. Turn the canopy right-
side-out and make a second row of stitching around the edges of the prepared hole. Stitching will
be performed in accordance with the STITCHING AND RESTITCHING paragraph detailed above.

0012 00-11
 TM 10-1670-272-23&P 0012 00

k. Reposition the canopy items removed or laid aside in b., above, in the original location and secure
each item to the canopy by restitching according to original construction details and the
STITCHING AND RESTITCHING paragraph detailed above.

l. If applicable, restencil informational data of gore numbers according to procedures in WP 0014

00.

NOTE

If outside of diagonal seam is damaged, cut away entire diagonal

seam in damaged area and patch as a basic patch (A).

0012 00-12
 TM 10-1670-272-23&P 0012 00

NOTE

Patch may be extended to include upper lateral band.

0012 00-13
 TM 10-1670-272-23&P 0012 00

NOTE

If outside of diagonal seam is damaged, cut away entire diagonal

seam in damaged area patch in same manner as triangular patch,
including radial seam only (E).

0012 00-14
TM 10-1670-272-23&P 0012 00

0012 00-15
TM 10-1670-272-23&P 0012 00

0012 00-16
TM 10-1670-272-23&P 0012 00

END OF WORK PACKAGE

0012 00-17/(18 Blank)

 TM 10-1670-272-23&P 0013 00

UNIT MAINTENANCE
MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
SEARING AND WAXING

THIS TASK COVERS:

• Searing
• Waxing

INITIAL SETUP:

Tools: Personnel Required

Pot, Melting, Electric (Item 24, WP 0043 00) 92R(10) Parachute Rigger
Knife, Hot, Metal (Item 14, WP 0043 00)

Materials/Parts: Equipment Condition

Beeswax (Item 2, WP 0056 00) Unpacked.
Wax, Paraffin (Item 59, WP 0056 00)

CAUTION

Cotton tape, webbing, or cord will not be seared.

CAUTION

Fabric materials such as cord, tape, and webbing, that are cut for
use in the maintenance of the MC1-1B/MC1-1E parachute, will
normally be heat-seared or dipped in a melted wax mixture, as
applicable, to prevent the material from fraying or unraveling.
However, in some instances, the preparation of the material may not
be necessary and will be specified accordingly.

SEARING
The cut ends of nylon tape, webbing and cord lengths may be prepared by heat-searing, which is
performed by pressing the raw end of the material against a hot metal surface (knife) until the nylon has
melted sufficiently. Avoid forming a sharp edge or lumped effect on the melted end.

WAXING
The fraying or unraveling of cotton or nylon tape, webbing, and cord length ends may be prevented by
dipping ½-inch of the raw end of the material into a thoroughly melted mixture of half beeswax and half
paraffin in an electric melting pot. The wax temperature should be substantial enough to ensure the wax
completely penetrates the material, rather than just coating the exterior fabric.

END OF WORK PACKAGE

0013 00-1/(2 Blank)

 TM 10-1670-272-23&P 0014 00

UNIT MAINTENANCE
MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
MARKING AND RESTENCILLING

THIS TASK COVERS:

• Marking
• Restencilling
• Remarking and Restencilling

INITIAL SETUP:

Materials/Parts Personnel Required

Brush, Stenciling (Item 4, WP 0056 00) 92R(10) Parachute Rigger
Ink, Marking, Strata-Blue (Item 22, WP 0056 00)
Marker, Felt Tip, Black (Item 25, WP 0056 00) Equipment Condition
Pen, Ball Point (Item 30, WP 0056 00) Laid out on packing table or other
Stencil Board, Oiled (Item 39, WP 0056 00) suitable area.

NOTE

Stenciling should be used whenever possible. A ballpoint pen or felt

tip marker should be used only were stenciling is not possible, or
when stenciling devices are not available. Any type ballpoint pen
using black or blue ink may be used for marking on labels only.

Original stenciled data or marking that becomes faded, illegible,

obliterated, or removed as a result of performing a repair procedure,
will be remarked with a ballpoint pen, felt tip marker, or restenciled.
All marking or restencilling will be done on, or as near as possible to,
the original location and should conform to the original lettering type
and size.

MARKING
Using marking devices, such as a ballpoint pen or felt tip marker, mark on, or as near as possible to, the
original location and conform to the original lettering type and size.

RESTENCILING
Proceed as follows:

1. Cut oiled stencil board to match the original lettering type and size of data to be restenciled.

2. Place cut stencil board over, or as near as possible to, the original marking to be restenciled.

3. Place an additional sheet of stencil board beneath the area to be restenciled to prevent the marking
ink from penetrating to other areas.

4. Hold the stencil board in place and, using the stenciling brush filled with parachute marking ink,
restencil the original marking.

0014 00-1
 TM 10-1670-272-23&P 0014 00

REMARKING AND RESTENCILING

Remark/restencil the original stenciled data/markings that become faded, illegible, obliterated, or that have
been removed as a result of performing a repair procedure. Ensure all marking/restencilling is on, or as
near as possible to, the original location, and conforms to the original lettering type and size.

END OF WORK PACKAGE

0014 00-2
 TM 10-1670-272-23&P 0015 00

UNIT MAINTENANCE
MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
BRIDLE LOOP

THIS TASK COVERS:

• Repair
• Replace

INITIAL SETUP:

Tools Personnel Required

Knife (Item 13, WP 0043 00) 92R(10) Parachute Rigger
Knife, Hot Metal (Item 14, WP 0043 00)
Sewing Machine, Heavy-Duty (WP 0012 00, Table 1) Equipment Condition
Shears (Item 28, WP 0043 00) Unpacked. Canopy laid flat.

Materials/Parts References
Webbing, Nylon, Type VIII (Item 70, WP 0056 00) Group No. 01, MAC (WP 0046 00)
Thread, Nylon, Size 6 (Item 58, WP 0056 00)

REPAIR
Repair a bridle loop requiring restitching as follows:

1. Use a heavy-duty sewing machine to restitch any loose or broken stitches.

2. Restitch over the original stitch pattern using nylon thread, size 6. Overstitch ½-inch to lock stitches.

REPLACE
Replace a damaged or missing bridle loop by fabricating as follows:

1. Cut a 10-inch length of webbing, nylon type VIII, Olive Drab (OD). Sear the ends of the webbing.

2. Pass one end of the webbing through all of the canopy vent lines. Join both webbing ends together
with a 2-inch overlap.

0015 00-1
 TM 10-1670-272-23&P 0015 00

3. Begin at a point ¼-inch from one overlapped webbing end; use a heavy-duty sewing machine to
secure the overlapped ends. With nylon thread, size 6, stitch a 1½-inch-long, single X-box stitch and
5 to 8 stitches per inch.

4. Cut and remove the damaged bridle loop.

END OF WORK PACKAGE

0015 00-2
 TM 10-1670-272-23&P 0016 00

UNIT MAINTENANCE
MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
ORIFICE EDGE REINFORCEMENT

THIS TASK COVERS:

• Repair

INITIAL SETUP:

Tools Personnel Required

Knife, Hot Metal (Item 14, WP 0043 00) 92R (10), Parachute Rigger
Sewing Machine, Light Duty (Table 1, WP 0012 00)
Shears (Item 28, WP 0043 00) Equipment Condition
Unpacked. Canopy in proper layout.
Materials/Parts
Tape, Nylon, Type III, ¾-IN. (Item 47, WP 0056 00) References
Group No. 01, MAC (WP 0046 00)

NOTE

Both upper and lower portions of the orifice edge reinforcement may
be spliced once per gore.

REPAIR
Splice damaged orifice edge reinforcement as follows:

1. Place canopy on repair table with damaged area up, and smooth out area around damaged orifice
edge reinforcement.

2. If only the orifice edge reinforcement is damaged, cut a length of type III nylon tape long enough to
extend 4-inches beyond each side of damaged area, and sear ends of tape. Center tape over
damaged area, and stitch according to original construction and table 2, WP 0012 00.

3. If damage to orifice edge reinforcement extends onto a gore section or sections and requires
replacement of the section or sections, place canopy on repair table, smooth out damaged area, and
pin section or sections to table. Be sure that radial and diagonal seams are straight. Cut orifice edge
reinforcement close to radial seams or radial and diagonal seams that border the damaged area.
Cut a length of type III nylon tape long enough to extend 4-inches beyond each radial seam or each
radial seam and diagonal seam involved, and sear ends of tape. Baste the 4-inch ends of tape in
place. Replace gore sections or section using the procedures in WP 0038 00, GORE SECTION.
Use tape as a guide for trimming edge of new section or sections. Turn under raw edge ½-inch, and
stitch tape in place using the same sewing machine, thread, and stitch range as specified in 2.
above.

END OF WORK PACKAGE

0016 00-1/(2 Blank)

 TM 10-1670-272-23&P 0017 00

UNIT MAINTENANCE
MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
VENT CAP

THIS TASK COVERS:

•= Repair
•= Replace

INITIAL SETUP:

Tools
Knife, Hot Metal (Item 14, WP 0044 00)
Sewing Machine, Light-Duty (Table 1, WP 0012 00) Personnel Required
Sewing Machine, Medium-Duty (Table 1, 92R(10) Parachute Rigger
WP 0012 00)
Shears (Item 28, WP 0044 00) Equipment Condition
Unpacked. Canopy in proper layout.
Materials/Parts
Cloth, Parachute, 1.1-oz. (Item 11, WP 0057 00) References
Stencil Board, Oiled (Item 39, WP 0057 00) Group No. 01, MAC (WP 0047 00);
Tape, Nylon, Type III, 1½-in (Item 49, 0057 00) WP 0012 00
Thread, Nylon, Size E (Item 53/56, WP 0057 00)

REPAIR
Repair vent cap by darning in accordance with WP 0012 00.

NOTE

Do not remove vent cap to darn.

END OF WORK PACKAGE

0017 00-1/(2 Blank)

 TM 10-1670-272-23&P 0018 00

UNIT MAINTENANCE
MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
UPPER LATERAL BAND

THIS TASK COVERS:

•= Repair

INITIAL SETUP:

Tools: Personnel Required:

Knife (Item 13, WP 0044 00) 92R(10) Parachute Rigger
Knife, Hot Metal (Item 14, WP 0044 00)
Pot, Melting, Electric (Item 24, WP 044 00) Equipment Condition:
Sewing Machine, Medium-Duty (WP 0012 00, Table 1) Unpacked. Canopy laid flat.
Shears (Item 28, WP 0044 00)
References:
Materials/Parts: Group No. 01, MAC (WP 0047 00)
Thread, Nylon, Size E (Item 53/56, WP 0057 00)
Webbing, Nylon, 1-Inch, Tubular (Item 66, WP 0057 00)

REPAIR

1. Restitching of the upper lateral band is authorized. Use a medium-duty sewing machine and size E,
nylon thread of contrasting color. Stitch over the original stitch pattern. Lock each row of stitches 2-
inches at each end.

NOTE

The upper lateral bands may be spliced only once and will not be
replaced.

2. Damage Between Radial Seams. Repair as follows:

a. Cut stitching of two apex/vent lines on each side of the damaged area and move the lines to one
side.

b. Invert the apex and smooth the canopy around the damaged area.

c. Cut a piece of 1-inch tubular, nylon, webbing, long enough to extend 1-inch beyond the outside
edge of the second radial seam, on each side of the damaged area. Sear or dip the ends of the
webbing.

0018 00-1
 TM 10-1670-272-23&P 0018 00

d. Position the webbing on the damaged area. Use a medium-duty sewing machine and size E,
nylon, thread to stitch. Sew webbing in place with four continuous rows of stitching, 7 to 11
stitches per inch. Overstitch the ends of the webbing 2-inches.

Damage Between Radial Seams

e. Reposition apex/vent lines and sew them in place according to original construction.

3. Damage Extending Into Radial Seam:

a. Cut the stitching of the apex/vent line attached to the damaged radial seam and the stitching of
the two apex/vent lines on each side of the damaged seam. Move the lines to one side.

b. Invert the apex and smooth the canopy around the damaged area.

c. Cut a piece of 1-inch tubular, nylon webbing, long enough to extend 1-inch beyond the outside
edge of the second radial seam, on each side of the damaged area. Sear or dip the ends of the
webbing.

0018 00-2
 TM 10-1670-272-23&P 0018 00

d. Position the webbing on the damaged area. Use a medium-duty sewing machine and size E,
nylon thread to stitch. Sew the webbing in place with four continuous rows of stitching, and 7 to
11 stitches per inch. Overstitch the ends of the webbing 2-inches.

e. Reposition the apex/vent lines and sew them in place according to the original construction.

END OF WORK PACKAGE

0018 00-3/(4 Blank)

 TM 10-1670-272-23&P 0019 00

UNIT MAINTENANCE
MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
RADIAL SEAM

THIS TASK COVERS:

•= Repair

INITIAL SETUP:

Tools:
Knife (Item 13, WP 0044 00) Personnel Required:
Needle, Basting (Item 18, WP 0044 00) 92R(10) Parachute Rigger
Sewing Machine, Light-Duty (Table 1, WP 0012 00)
Shears (Item 28, WP 0044 00) Equipment Condition:
Parachute canopy laid out on table.
Materials/Parts:
Cloth, Parachute, Nylon, 1.1-oz. (Item 11, WP 0057 00) References:
Thread, Cotton, 24/4 (Item 52, WP 0057 00) Group No. 01, MAC (WP 0047 00)
Thread, Nylon, Size E (Item 53/56, WP 0057 00)
Thread, Nylon, Size A (Item 55, WP 0057 00)

REPAIR
Patching repairs the radial seam. There is no limit to the length of a miscellaneous patch made on a
canopy radial seam. In addition, a radial seam may be patched on both the inside and the outside of a
canopy, as required. Patch a damaged radial seam as follows:

1. Place the canopy on a repair table with the damaged side of the radial seam facing up.

2. As required, cut the applicable stitching to remove or lay aside items that may interfere with the
patching process.

3. Smooth the canopy material surrounding the damaged area and secure the undamaged portion of the
seam to the table with pushpins. Do not pin the damaged area of the seam.

4. Using the same type material as in the original canopy construction, cut a rectangular patch
3½-inches wider and 4-inches longer than the damaged area. If one piece of material is not long
enough to achieve the cited size, join additional pieces of cut material with ½-inch-wide lapped seams.

5. Fold the patch material lengthwise and align the raw edges.

6. Center and secure the radial seam patch material over the damaged area with pushpins. Fold-under
½-inch on each side of the new patch material and secure each side with pins.

7. Fold-under 1-inch at each end of the new patch material and secure with pins. Baste both sides of the
new patch to the canopy using the procedures in WP 0012 00.

0019 00-1
 TM 10-1670-272-23&P 0019 00

8. Remove the pins securing the canopy to the repair table. Secure the patch to the radial seam by
stitching; use the procedures in WP 0012 00 and the stitching specifics outlined in tables 1 and 2, WP
0012 00. The patch will be secured with four rows of stitching.

9. When applicable, repeat the stitching procedures in step 8., above, on the opposite side of the radial
seam channel.

10. Reposition the items removed, or laid aside in step 2., above, in the original location; reattach each
item to the canopy by restitching according to the original construction details and WP 0012 00.
Stitching will be made using the stitching specifics cited in tables 1 and 2, WP 0012 00.

END OF WORK PACKAGE

0019 00-2
 TM 10-1670-272-23&P 0020 00

UNIT MAINTENANCE
MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
GORE SECTIONS

THIS TASK COVERS:

•= Repair

INITIAL SETUP:

Tools: Personnel Required:

Knife (Item 13, WP 0044 00) 92R(10) Parachute Rigger
Needle, Basting (Item 18, WP 0044 00)
Sewing Machine, Light-Duty (Table 1, WP 0012 00) Equipment Condition:
Sewing Machine, Darning, Light-Duty (Table 1, Parachute canopy laid out on table.
WP 0012 00)
Shears (Item 28, WP 0044 00)
References:
Materials/Parts: Group No. 01, MAC (WP 0047 00)
Brush, Stenciling (Item 4, WP 0057 00) WP 0012 00 and WP 0014 00
Cloth, Parachute Mending (Item 10, WP 0057 00)
Cloth, Parachute, Nylon, 1.1-oz. (Item 11, WP 0057 00)
Thread, Nylon, Size A (Item 55, WP 0057 00)
Thread, Nylon, Size E (Item 53/56, WP 0057 00)
Stencil Board, Oiled (Item 39, WP 0057 00)
Thread, Cotton, Ticket 24/4 (Item 52, WP 0057 00)

REPAIR
Repair gore sections by restitching, darning, patching, or restencilling, in accordance with WP 0012 00
(Repair Procedures) and WP 0014 00 (Marking and Restenciling). Darn holes that do not exceed ½-inch
in length or diameter. Darning is limited to two holes per gore section. Stitching and darning will be done
as specified in Table 2, WP 0012 00.

END OF WORK PACKAGE

0020 00-1/(2 Blank)

 TM 10-1670-272-23&P 0021 00

UNIT MAINTENANCE
MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
LOWER LATERAL BAND

THIS TASK COVERS:

•= Repair

INITIAL SETUP:

Tools: Personnel Required:

Knife (Item 13, WP 0044 00) 92R(10) Parachute Rigger
Knife, Hot Metal (Item 14, WP 0044 00)
Pot, Melting, Electric (Item 24, WP 0044 00) Equipment Condition:
Sewing Machine, Light-Duty (Table 1, WP 0012 00) Unpacked. Laid out flat on repair
Shears (Item 28, WP 0044 00) table.

Materials/Parts: References:
Beeswax (Item 2, WP 0057 00) Group No. 01, MAC (WP 0047 00)
Tape, Nylon, Tubular, Cotton Filled, 1-IN. Wide
(Item 45, WP 0057 00)
Thread, Nylon, Size E (Item 53/56, WP 0057 00)

NOTE

The lower lateral band may be spliced in three places. In the event
of damage between two suspension lines, where a splice has been
used previously, it must be removed and replaced. Either side may
be spliced, depending on the location of the damage.

REPAIR

1. Damage Between Radial Seams. Repair as follows:

a. Cut the stitching of the suspension line, V-tab, and pocket band (when applicable) on each side of
the damaged area.

Stitching Removed

0021 00-1
 TM 10-1670-272-23&P 0021 00

b. Invert the canopy and smooth the canopy around the damaged area.

c. Cut a piece of natural, 1-inch, tubular cotton-filled nylon tape, long enough to extend 6-inches on
each side of the damaged area.

d. Position the tape over the damaged area of the lateral band. Using a light-duty sewing machine,
and size E, nylon thread, stitch in place with four continuous rows of stitching, 7 to 11 stitches per
inch. Overstitch the ends of the tape by 2-inches.

e. Reposition the suspension lines, V-tabs, and pocket band; sew in place according to the original
construction.

0021 00-2
 TM 10-1670-272-23&P 0021 00

2. Damage Extending into Radial Seams. Repair as follows:

a. Cut the stitching of the suspension lines, V-tabs, and pocket bands at the damaged radial seam
on each side of the damaged area. Move these items to one side.

Stitching Removed

b. Invert the canopy and smooth the canopy around the damaged area.

c. Cut a piece of 1-inch, tubular nylon tape, long enough to extend 6-inches beyond the outside edge
of the radial seam on each side of the damaged area. Sear or dip the ends of the webbing.

0021 00-3
 TM 10-1670-272-23&P 0021 00

d. Position the webbing on the damaged area. Using a light-duty sewing machine, and size E, nylon
thread, sew the webbing in place with four continuous rows of stitching, 7 to 11 stitches per inch.
Overstitch the ends of the webbing by 2-inches.

Lower Lateral Band

SECTION A-A

e. Reposition the suspension lines, V-tabs, and pocket bands; sew in place according to the original
construction.

3. Stitching and Restitching. Stitch and restitch with size E, nylon thread that matches the color of the
original stitching, when possible. Lock all straight stitching by backstitching at least ½-inch. Restitch
directly over the original stitching. Follow the original stitch pattern as closely as possible.

END OF WORK PACKAGE

0021 00-4
 TM 10-1670-272-23&P 0022 00

UNIT MAINTENANCE
MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
POCKET BAND

THIS TASK COVERS:

• Repair
• Replace

INITIAL SETUP:

Tools Personnel Required

Knife (Item 13, WP 0044 00) 92R(10) Parachute Rigger
Knife, Hot Metal (Item 14, WP 0044 00)
Pot, Melting, Electric (Item 24, WP 0043 00) Equipment Condition
Sewing Machine, Light Duty (Table 1, WP 0012 00) Unpacked. Laid flat on repair table.
Shears (Item 28, WP 0044 00)

Materials/Parts References
Beeswax (Item 2, WP 0057 00) Group No. 01, MAC (WP 0047 00)
Tape, Nylon, Tubular, Cotton-Filled, 1-IN. Wide
(Item 45, WP 0057 00)
Thread, Nylon, Size E (Item 53/56, WP 0057 00)

REPAIR
Stitch and restitch with nylon thread, size E, that is contrasting in color. Lock all straight stitching by back
stitching at least ½-inch. Restitch over the original stitch pattern.

REPLACE
When installed on a parachute canopy, a pocket band will be positioned on the outside of the lower lateral
band, with a band end attached on each side of a suspension line, thereby allowing a free length of
material to pass over the suspension line. A pocket band that is damaged will be replaced by fabricating
using the following procedures:

1. Place the canopy assembly on a repair table, or other repair surface, with the damaged pocket band
facing up.

2. Mark the lower lateral band, at each end of the damaged pocket band length.

3. Remove the affected pocket band from the canopy by cutting the stitching securing each of the band
ends to the lower lateral band. Remove stitching on anti-inversion net and place out of the way until
the pocket band is sewn.

4. Fabricate a new pocket band by cutting an 11¾-inch length of type I, tubular nylon tape; sear the
ends.

5. Position the replacement pocket band length in the original pocket band location; align the material
ends with the marks made in step 2., above.

0022 00-1
 TM 10-1670-272-23&P 0022 00

6. Secure each of the replacement pocket bands to the lower lateral band by stitching a 2-inch-long,
1
single-X, box-stitch formation, with two double ends, /8-inch in from each edge. Use size E, nylon
thread, 7 to 11 stitches per inch.

7½ IN. 1
/8 IN.

4¼ IN.

7. Sew the anti-inversion net to the inside of the lower lateral band.

END OF WORK PACKAGE

0022 00-2
 TM 10-1670-272-23&P 0023 00

UNIT MAINTENANCE
MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
V-TABS

THIS TASK COVERS:

• Repair
• Replace

INITIAL SETUP:

Tools
Knife (Item 13, WP 0044 00) Personnel Required
Knife, Hot Metal (Item 14, WP 0044 00) 92R(10) Parachute Rigger
Sewing Machine, Light-Duty (Table 1, WP 0012 00)
Sewing Machine, Medium-Duty, Zig-Zag Equipment Condition
(Table 1, WP 0012 00) Unpacked. Laid flat on repair table.
Shears (Item 28, WP 0044 00)
References
Materials/Parts Group No. 01, MAC (WP 0047 00)
Thread, Nylon (Item 53/56, WP 0057 00)
9
Webbing, Nylon, Type I, /16-IN. (Item 67,
WP 0057 00)

REPAIR
Stitch and restitch with nylon thread, that is the same size and contrasting in color to the original stitching,
whenever possible. Lock all stitching by back stitching at least ½-inch. Restitch over the original stitch
pattern.

REPLACE
Replace as follows:
9
1. Cut a 5-inch length of /16-inch-wide, type I, nylon webbing. Fold the webbing in half, cut the free ends
on a 45-degree bias; sear the ends.

2. Position the canopy on the repair table, with the V-portion of the damaged tab up.

0023 00-1
 TM 10-1670-272-23&P 0023 00

3. Mark the suspension line at the point where it crosses the lower edge of the lower lateral band.

4. Remove the damaged V-tab by cutting the stitching that holds the tab to the lower lateral band and the
suspension line. Cut the stitching that holds the suspension line to the lower lateral band.

5. Center the new tab lengthwise under the suspension line, even with the lower edged of the lower
lateral band. Wrap the tab tightly around the line, forming a V on the inside of the lower lateral band.
Hand-tack the tab to the inside of the lower lateral band.

Inside View

Bias-Trimmed V-Tab Ends Secured With Temporary Tacking

0023 00-2
 TM 10-1670-272-23&P 0023 00

6. Pull the suspension line up through the V-tab, and off to one side.

Outside View

Length Of Suspension Line Pulled Up Through V-Tab

7. Sew the V-tabs to the inside of the lateral band, with both straight and zig-zag stitching; use nylon
thread, size E. Hold the suspension line aside while sewing the V-tab.

Inside View

V-Tab Ends Secured To Lower Lateral Band

0023 00-3
 TM 10-1670-272-23&P 0023 00

8. Turn the canopy right side out, and reposition the suspension line, making certain the mark in step 3.,
above, is even with the lower edge of the lower lateral band.

9. Using a zig-zag sewing machine and size E, nylon thread, sew the suspension line in place. Begin
stitching ¼-inch below the V-tab; use 7 to 11 stitches per inch.

Outside View

Suspension Line Secured To V-Tab And Canopy Skirt

END OF WORK PACKAGE

0023 00-4
 TM 10-1670-272-23&P 0024 00

UNIT MAINTENANCE
MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
ANTI-INVERSION NET

THIS TASK COVERS:

• Inspect and Repair
• Replace

INITIAL SETUP:

Tools
Knife (Item 13, WP 0044 00)
Sewing Machine, Light-Duty, Zig-Zag (Table 1,
WP 0012 00) Personnel Required
Sewing Machine, Medium Duty, Zig-Zag (Table 92R(10) Parachute Rigger
1, WP 0012 00)
Shears (Item 28, WP 0044 00) Equipment Condition
Presser Foot, Modified (WP 0058 00) Unpacked. Laid flat on repair table.

Materials/Parts References
Netting, Nylon, 3¾-in. Sq. Mesh, 18-IN. Wide Group No. 01, MAC (WP 0047 00)
(Item 26, WP 0057 00)
Thread, Nylon, Size E (Item 53/56, WP 0057 00)

NOTE

The following procedures describe the basic netting repairs normally

required. This should be understood to mean that these repairs are
the only authorized repairs. Any time supervisory parachute
maintenance personnel determine that other repairs are necessary
to maintain the basic integrity of the net assembly; repairs may be
made using the following basic criteria.

Procedures in WP 0058 00 (Illustrated List of Manufactured Items)

may be used to modify the zig-zag sewing machine presser foot,
which will assist in the repair and replacement of the anti-inversion
net.

INSPECT AND REPAIR

Due to the net not bearing any weight, the objectives in making repairs to the net are as follows: to prevent
damage to the parachute’s suspension lines and lower lateral bands; to avoid excessive accumulation of
net material during repairs; and to maintain the net in a serviceable condition at minimum cost. To
achieve these objectives, the following guidelines are to be followed in making inspections and repairs:

0024 00-1
 TM 10-1670-272-23&P 0024 00

1. A limit of two horizontal and two vertical net cords may be broken in any one net section without
repair. Trim the broken cord to within ¼-inch from where the cord crosses the horizontal or vertical
cord, as shown. Only one unrepaired break per net is permitted.

0024 00-2
 TM 10-1670-272-23&P 0024 00

2. Broken net cords exceeding the number specified in step 1., above, and damaged net cords shall be
1
repaired using a light-duty zig-zag sewing machine, 5 to 8 stitches per inch, and /8-inch-wide throw as
illustrated below.

Repair To Horizontal Cords When

Repair To Vertical And Horizontal Cord
One Defect Is Within 1-Inch Of
In Same Square
Vertical Cord

Repair To Vertical Cords Attached To Top Cord

0024 00-3
 TM 10-1670-272-23&P 0024 00

3. Damaged areas in the bottom cord must be repaired in accordance with the illustrations below using a
1
light-duty sewing machine, 5-8 stitches per inch, /8-in. wide.

A. Repair Of Bottom Cord When Defect B. Repair To Bottom Cord When Defect
Is Over 1-Inch From Vertical Cord Is Within 1-Inch Of Vertical Cord

4. If damage is in a square next to a suspension line, exceeds limits, or would require zig-zag stitching to
the suspension line, the netting should be cut and removed in accordance with the illustration detailed
below.

Repair To Net When Defect Is Less Than 1-Inch From Suspension Line
(Only Repair Stitching Shown)

0024 00-4
 TM 10-1670-272-23&P 0024 00

5. Carefully cut the zig-zag stitching loose from the suspension line. If the line is cut, the suspension line
must be replaced. Butt the ends of the vertical cord of the new netting to the end of the cut vertical
cord on the suspension line. Start the zig-zag stitch ½-inch from the new netting material. Stitch on
the suspension line and ½-inch beyond the end.

REPLACE
If the net section requires replacement, remove the damaged area as follows:

1. Cut the vertical cords close to the top cord sewn to the lower lateral band.

2. Cut the horizontal cords, except for the top cord; leave one square length plus 1-inch on the outside of
the suspension line, where possible.

3. Spread the new piece of netting over the removed section, with the top horizontal cord place below the
old cord sewn to the lower lateral band.

CAUTION

Avoid removal of the vertical net cord from the suspension line, if
possible. When replacement vertical net cord must be sewn to the
suspension line, the old cord shall be carefully removed.

NOTE

If there is insufficient horizontal cord, on the inside of the suspension

lines of the section being replaced, to attach the replacement net,
then the horizontal net cords may be placed across the suspension
line and sewn to the other cords on each side of the suspension line.
Sew a minimum of 1-inch by skipping over the suspension line, or
sewing the cords together for 2-inches in the adjacent section, and
the section being replaced.

0024 00-5
 TM 10-1670-272-23&P 0024 00

4. Cut out a new section so the ends may be sewn together, using the method shown in the illustrations
1
below, as a guide. Use a light duty zig-zag sewing machine, 5-8 stitches per inch, /8-inch wide throw
1
to sew the ends together. Use a medium zig-zag sewing machine, 5 to 8 stitches per inch, and an /8-
inch wide throw to sew the net to the suspension line.

Repair To Net When Defect Is Less Than Repair To Vertical Cords Attached
1-Inch From Suspension Line To Top Cord
(Only Repair Stitching Shown)

END OF WORK PACKAGE

0024 00-6
 TM 10-1670-272-23&P 0025 00

UNIT MAINTENANCE
MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
SUSPENSION LINE

THIS TASK COVERS:

•= Repair

INITIAL SETUP:

Tools
Knife (Item 13, WP 0044 00)
Knife, Hot Metal (Item 14, WP 0044 00) Personnel Required
Pot, Melting, Electric (Item 24, WP 0044 00) 92R(10) Parachute Rigger
Sewing Machine, Medium-Duty, Zig-Zag
(Table 1, WP 0013 00) Equipment Condition
Shears (Item 28, WP 0044 00) Unpacked. Laid flat on repair table.

Materials/ Parts References

Beeswax (Item 2, WP 0057 00) Group No. 01, MAC (WP 0047 00)
Cord, Nylon, Type II (Item 14, WP 0057 00)
Thread, Nylon, Size E (Item 53/56, WP 0057 00)

REPAIR
Stitch and restitch, using a zig-zag pattern, 7 to 11 stitches per inch, with size E, nylon thread that is
contrasting in color to the original material. Restitch over the original pattern.

END OF WORK PACKAGE

0025 00-1/(2 Blank)

 TM 10-1670-272-23&P 0026 00

UNIT MAINTENANCE
MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
CONTROL LINE BRIDLE

THIS TASK COVERS:

• Repair
• Replace

INITIAL SETUP:

Equipment Condition Personnel Required

Control line bridle laid out on table. 92R(10) Parachute Rigger

Tools Materials/ Parts

Knife (Item 13, WP 0044 00) Beeswax (Item 2, WP 0057 00)
Knife, Hot, Metal (Item 14, WP 0044 00) Cord, Nylon, Type II (Item 14, WP 0057 00)
Pot, Melting, Electric (Item 24, WP 0044 00) Reefing Ring (Item 34, WP 0057 00)
Sewing Machine, Zig-Zag (Table 1, WP 0012 00) Thread, Nylon, Size E (Item 53/56, WP 0057 00)
Shears (Item 28, WP 0044 00)
References
Group No. 01, MAC (WP 0047 00)

REPAIR
Stitch and restitch with size E, nylon thread that is contrasting in color to the material. Restitch over the
original pattern.

REPLACE
Replace a control line bridle as follows:

1. Place the canopy in proper layout on a repair surface; trace the control line bridle from one radial
seam, through the control line-reefing ring, to the opposite radial seam.

2. Make a mark at the lower end of the two stitch formations; secure the original control line bridle to the
canopy.

3. Working through the canopy orifice ports, remove the original control line bridle by carefully cutting the
stitching that secures the bridle to the canopy at two points. Ensure the canopy fabric is not damaged
during the cutting process.

4. Cut a 6-foot length of type II, nylon cord, for use as a control line bridle, and wax the ends.

5. Make a mark at a point 6-inches from each end of the cord length.

6. Align the 6-inch mark on one end of the cord length, with one mark made is step 2., above.

0026 00-1
 TM 10-1670-272-23&P 0026 00
5
7. Secure the positioned 6-inch cord end with a 6-inch-long, /32-inch-wide, double-throw, zig-zag stitch
formation.

0026 00-2
 TM 10-1670-272-23&P 0026 00

8. Pass the control line bridle free-end through the reefing ring attached at the top of the control line.
Align the 6-inch mark on the bridle free-end, as outlined in step 6., above. Complete the control line
bridle replacement by securing the bridle free-end, using the procedures in step 7., above.

END OF WORK PACKAGE

0026 00-3/(4 Blank)

 TM 10-1670-272-23&P 0027 00

UNIT MAINTENANCE
MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
CONTROL LINE

THIS TASK COVERS:

• Repair
• Replace

INITIAL SETUP:

Tools Materials/ Parts

Knife (Item 13, WP 0044 00) Beeswax (Item 2, WP 0057 00)
Knife, Hot, Metal (Item 14, WP 0044 00) Cord, Nylon, Type II (Item 14, WP 0057 00)
5
Pot, Melting, Electric (Item 24, WP 0044 00) Dowel, Hardwood, /8-Inch, Dia. (Item 17,
Sewing Machine, Zig-Zag (Table 1, WP 0012 00) WP 0056 00)
Shears (Item 28, WP 0044 00) Reefing Ring (Item 34, WP 0057 00)
Tape, Masking, 1-IN. (Item 43, WP 0057 00)
Equipment Condition Thread, Nylon, Size E (Item 53/56, WP 0057 00)
Control line bridle laid out on table.
References
Personnel Required Group No. 01, MAC (WP 0047 00)
92R(10) Parachute Rigger

REPAIR
Stitch and restitch with size E, nylon thread that is contrasting in color to the material. Restitch over the
original pattern.

REPLACE
Replace an unserviceable control line by fabricating as follows:

1. Place the canopy in proper layout on a repair surface and apply partial tension to the suspension lines.

2. Trace the applicable control line from the toggle to the control line bridle.

3. Remove the toggle from the control line bottom end.

4. Cut and remove the control line top end from the reefing ring through which the control line bridle
passes.

5. Cut a 28½-foot length of type II nylon cord for use as a control line and wax the ends.

6. Make a mark at a point 4½-inches from one of the cord length. Make a second mark at a point 1¼-
inches above the first mark.

7. Pass the marked end of the cord length through the original control line reefing ring located on the
control line bridle until the reefing ring is located between the two marks. Fold the cord length marked
end back and align the two marks.

0027 00-1
 TM 10-1670-272-23&P 0027 00

8. With the reefing ring positioned in the loop formed by the fold-back in the cord end, secure the control
3
line to the reeding ring with a single row, 4-inch-long, /16-inch-wide, double-throw, zig-zag stitch
formation using 7 to 11 stitches per inch.

9. Trace each control line bridle and the attached control line from the point of attachment to the canopy
to the free end of the control line.

10. Pass the control line free end from the top through the guide ring located on the inside of each rear
riser and further pass the control line free end through a wood toggle. (Refer to the figure detailed
below for toggle construction details, if required.)

11. Position the toggle against the bottom of the guide ring and, while holding the toggle in position, pull
the control line free-end taut until the control line tension equals that of the suspension lines. Move
each toggle three inches from the channel guide ring. While holding each control line in position,
place one-inch wide masking tape on the control line just above the toggle, wrapping the tape around
the riser once. Do not remove this tape.

0027 00-2
 TM 10-1670-272-23&P 0027 00

12. Make two overhand knots in each control line against the bottom of each toggle. The remaining free
end of each control line from the second overhand knot is to measure five-inches. Then make the
third overhand knot in the free end. Trim the control line free end at a point ½-inch below the third
overhand knot.

5 IN

13. For parachutes with more than five jumps, position the control line toggles as follows:

a. Undo the three overhand knots in each control line free end.

b. Again, position the toggle against the bottom of the guide ring and, while holding the toggle in
position, pull both control line free-ends taut until the control line tension equals that of the
suspension lines.

c. Secure the toggle by making two overhand knots against the bottom of the toggle. After the
toggle is secured with the two overhand knots, check to make sure the toggle does not exert any
pressure against the guide ring, on the guide ring retaining strap that is connected to the
parachute riser.

0027 00-3
 TM 10-1670-272-23&P 0027 00

d. At a point 2-inches below the last overhand knot, make a third overhand knot in the control line
free end. Trim the control line free end at a point ½-inch below the third overhand knot.

14. Annotation will be made in the note section of the parachute log record that the control line toggle
adjustment procedure has been performed.

END OF WORK PACKAGE

0027 00-4
 TM 10-1670-272-23&P 0028 00

UNIT MAINTENANCE
MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
CONNECTOR LINK ASSEMBLY

THIS TASK COVERS:

• Repair
• Replace

INITIAL SETUP:

Tools Personnel Required

File (Item 8, WP 0044 00) 92R(10) Parachute Rigger
Mallet, Rawhide (Item 17, WP 0044 00)
Screwdriver, Flat-tip (Item 26, WP 0044 00) Equipment Condition
Separator, Connector Link (Item 27, WP 0044 00) Connector links laid out on table.

Materials/ Parts References

Cloth, Abrasive (Item 6, WP 0057 00) Group No. 01, MAC (WP 0047 00)

NOTE

L-bar connector link assemblies are used on the MC1-1B/MC1-1E

personnel parachute. Quick-fit link assemblies are not to be used
on the MC1-1B/MC1-1E parachute.

REPAIR
Repair an L-bar connector link assembly as follows:

1. Cleaning. Remove burrs, rough spots, rust, or corrosion from a parachute connector link assembly by
either filing with a metal file or buffing with a crocus cloth.

2. Replacing a locking screw. Replace a damaged or missing locking screw on a parachute connector
link with a serviceable item from stock.

REPLACE
A parachute connector link assembly, regardless of type, that is damaged beyond repair, will be replaced
with a serviceable L-bar parachute connector link assembly from stock. Use the following procedures:

1. Using a suitable sized flat-tip (slotted-head) screwdriver, remove the two locking screws from the ends
of a replacement L-bar parachute connector link assembly and disassemble the link.

0028 00-1
 TM 10-1670-272-23&P 0028 00

2. Using a suitable sized flat-tip (slotted-head) screwdriver, remove the two locking screws from the
damaged original parachute connector link assembly. Disassemble the link assembly, using a link
separator, if necessary. If the connector link contains suspension lines, ensure the lines are not
allowed to slide off the damaged link during the disassembly process.

3. As applicable, position an L-bar of the replacement link assembly adjacent to the disassembled
original link assembly; slide the suspension lines from the damaged link onto the replacement link L-
bar.

4. If required, pass the remaining L-bar of the replacement link through the attaching loop of the
adjoining component.

5. Fit the replacement link L-bars together; ensure the L-bar engagement by tapping the end of each L-
bar with a rawhide mallet.

6. As applicable, trace the suspension lines from the connector link assembly to the canopy skirt to
ensure the lines are properly installed and in the correct sequence.

END OF WORK PACKAGE

0028 00-2
 TM 10-1670-272-23&P 0029 00

UNIT MAINTENANCE
MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
RISERS

THIS TASK COVERS:

• Repair
• Replace

INITIAL SETUP:

Tools
Knife (Item 13, WP 0044 00) References
Knife, Hot Metal (Item 14, WP 0044 00) Group No. 02, MAC (WP 0048 00);
Screwdriver, Flat-tip (Item 26, WP 0044 00) WP 0003 00; WP 0012 00
Separator, Connector Link (Item 27, WP 0044 00)
Sewing Machine, Medium-Duty (Table 1, Personnel Required
WP 0013 00) 92R(10) Parachute Rigger
Shears (Item 28, WP 0044 00)
Equipment Condition
Materials/ Parts Unpacked.
Reefing Ring, Control Line (Item 34, WP 0057 00)
Tape, Adhesive, Pressure Sensitive, Yellow (Item 41,
W P0057 00)
Tape, Nylon, Type III, 1½-Inch Wide (Item 49,
WP 0057 00)
Thread, Nylon, Size E (Item 53/56, WP 0057 00)
9
Webbing, Nylon, /16-IN. Wide (Item 67, WP 0057 00)

REPAIR
Repair a damaged riser assembly a follows:

1. Repairing a guide ring and a guide ring-retaining strap. Repair is limited to replace. Replace a
damaged or missing guide ring and guide ring retaining strap as follows:

a. If applicable, remove the original guide ring, and guide ring-retaining strap, from the riser by
cutting the stitching securing the strap to the riser. Ensure the riser webbing is not damaged
during the cutting process.

b. If required, replace the guide ring (reefing ring) with a serviceable item from stock.
9
c. Cut a 4½-inch length of /16-inch-wide, type I, nylon webbing; sear the ends.

d. Fold the webbing and install a serviceable guide ring on the folded webbing according to the
details illustrated on the next page.

0029 00-1
 TM 10-1670-272-23&P 0029 00

e. Secure the formed retaining strap with the guide ring, to the riser, using a medium-duty sewing
machine and size E, nylon thread as illustrated above, and using details in WP 0012 00, tables 1
and 2.

2. Repairing a control line channel. Repair a damaged or missing control line channel by fabricating as
follows:

a. If applicable, remove an original control line channel from a riser by cutting the stitching securing
the channel to the riser.

b. Cut a 5-inch length of 1½-inch-wide, type III, nylon tape; sear the ends.

c. Make a ½-inch-long fold-back on each end of the tape. Secure each fold-back by making a single
1
row of stitching across the tape width at a point /8-inch back from the seared edged of the fold-
back; lock the stitching ends by ½-inch. Stitching will be made using a medium-duty sewing
machine and size E, nylon thread; use details in WP 0012 00, tables 1 and 2.

0029 00-2
 TM 10-1670-272-23&P 0029 00

d. Position the stitched tape lengthwise on the riser in the original channel location or according to
illustration above. Form the control line channel by securing the tape to the riser with a single row
1
of stitching made /8-inch along each long edge of the tape. Overstitch each end of the tape by ¼-
inch. The stitching will be made using the specifics in WP 0012 00, table 2.

REPLACE
Replace an unserviceable riser assembly as follows:

1. Remove the old risers by removing the screws and disassembling the link assemblies.

2. Obtain a serviceable riser assembly from stock.

3. When replacing a riser assembly, make certain the risers are not twisted and that, when the male
canopy release fitting is facing down, the suspension lines are in proper sequence and location on the
connector links.

4. Check the toggle attachment and trace the bottom end of the control line as illustrated below.

0029 00-3
 TM 10-1670-272-23&P 0029 00

5. Replace the log record book in accordance with WP 0003 00.

6. Replace MC1-1B/MC1-1E identification markings by wrapping two turns, ½-inch yellow, pressure-
sensitive adhesive tape around each riser assembly, centered on the confluence wrap.

END OF WORK PACKAGE

0029 00-4
 TM 10-1670-272-23&P 0030 00

UNIT MAINTENANCE
MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
DEPLOYMENT BAG

THIS TASK COVERS:

• Repair
• Replace

INITIAL SETUP:

Equipment Condition Materials/ Parts

Deployment bag clean with defects recorded. Beeswax (Item 2, WP 0057 00)
Cloth, Cotton, Sateen, 8.2 oz. (Item 7,
Tools WP 0057 00)
Knife (Item 13, WP 0044 00) Cord, Nylon, Type II (Item 14, WP 0057 00)
Knife, Hot Metal (Item 14, WP 0044 00) Thread, Nylon, Size E (Item 53/56, WP 0057 00)
Pot, Melting, Electric (Item 24, WP 0044 00) Thread, Nylon, Size 3 (Item 54/57, WP 0057 00)
Sewing Machine, Light-Duty (Table 1, Thread, Nylon, Size 6 (Item 58, WP 0057 00)
WP 0012 00) Webbing, Cotton, Type II (Item 63, WP 0057 00)
Sewing Machine, Medium-Duty (Table 1, Webbing, Nylon, Type VIII (Item 70,
WP 0012 00) WP 0057 00)
9
Sewing Machine, Very Heavy-Duty (Table 1, Webbing, Nylon, Type I, /16-IN. (Item 67,
WP 0012 00) WP 0057 00)
Shears (Item 28, WP 0044 00) Wire, Steel, 0.080 Diameter (Item 73,
WP 0057 00)
Personnel Required
92R(10) Parachute Rigger References
Group No. 03, MAC (WP 0049 00); WP 0011 00
WP 0012 00; WP 0014 00

REPAIR
1. General. Two types of deployment bags are used with the MC1-1B/MC1-1E parachute: deployment
bag with static line attached, standard, and deployment bag without static line attached, USL.

Standard Deployment Bag

0030 00-1
 TM 10-1670-272-23&P 0030 00

NOTE

The U.S. Navy is authorized to use deployment bag P/N 56D6276-4.

Universal Static Line Deployment Bag

2. Stitching. Stitch and restitch with nylon thread, size E, that matches the color of the original stitching,
when possible. Lock all straight stitching by backstitching at least ½-inch. Restitch directly over the
original stitching; follow the original stitch pattern as closely as possible.

3. Restencilling. If necessary, restencil the bag number on the suspension line protector cover in
accordance with WP 0014 00 (Marking and Stenciling).

4. Suspension line stow loop. Repair stow loops as follows:

0030 00-2
 TM 10-1670-272-23&P 0030 00

a. Permissible damage. Two stow loops per panel may be torn, if the tear does not exceed ½ the
width of the loop, and the torn loops are not adjoining. Bags with tie closure may have closing
loops torn up to ½ the width.

b. Restitching. Proceed as follows:

(1) Stow loops that are torn more than halfway through may be stitched down (making them
unusable), provided a minimum of ten stow loops per stow panel remain. Use a medium-
duty sewing machine with size 3, nylon thread to stitch 7 to 11 stitches per inch.

(2) If 50% of stitching is loose or broken on one rolled stow, restitch the stow loop to the stow
loop panel. If stitching in more than one adjacent rolled stow is broken more than ¾ of an
inch in either stow, then restitch all stow loops on that side. Use a medium-duty sewing
machine, size 3, nylon thread, and 7 to 11 stitches per inch.

0030 00-3
 TM 10-1670-272-23&P 0030 00

5. Darning. Darning is a sewing procedure used to repair limited size holes, rips, and tears in assorted
airdrop items constructed from textile material. A darning repair may be made either by hand or
sewing machine, depending upon the method preferred and the availability of equipment. Refer to
WP 0012 00 (Sewing Procedures), and use the following guidelines.

NOTE

A darning machine should be used to darn small holes and tear

where fabric is missing.

a. Darning small holes or tears. Darn small holes or tears in the main panel, reinforcement panel,
side flaps, paddle pocket, locking stow panel, suspension line protector cover, and locking stow
loop hood if the holes or tears do not exceed ¾-inch in length or diameter. Use size E, nylon
thread, and 7 to 11 stitches per inch.

b. Darning previously patched material. Darning of previously patched material can be performed
provided the darning size limitations prescribed in step a., above, are not exceeded.

c. Machine darning. Proceed as follows:

(1) Using an authorized marking aid of contrasting color, mark a square around the undamaged
area and ensure the marking is at least ¼-inch back from each edge of the damaged area.

(2) Darn the damaged area by sewing the material in a back-and-forth manner.

(3) Turn the material and stitch back and forth across the stitching made in step 2., above, until
the hole or tear is completely darned.

(4) If applicable, restencil informational data, serial number(s), or identification marks in

accordance with WP 0014 00.

6. Patching. Patch holes in the suspension line protector cover that exceed ¾-inch in length or diameter.
Proceed as follows:

0030 00-4
 TM 10-1670-272-23&P 0030 00

a. Place the reparable item on a repair table, smooth the fabric around the damaged area, and
secure the item to the table with pushpins. Do no pin the damaged area.

b. Using an authorized marking aid of contrasting color, mark a square or rectangle around the area
to be patched.

c. Cut the damaged area of fabric along the lines made in step 2. above. Further, cut the fabric
diagonally at each corner to allow a ½-inch fold-back in the raw edges.

d. Make a ½-inch fold-back on each raw edge. Pin and baste each fold-back to complete the
prepared hole.

e. Using the same type material as in the original construction (8.2 oz., cotton, sateen cloth) mark
and cut a patch 2½-inches wider and longer than the inside measurements of the prepared hole.

f. Center the patch material over the prepared hole and ensure the warp or filling of the patch
material matches the warp or filling of the fabric being patched. Pin the patch material in position.

g. Make a ½-inch fold on each edge of the patch material and baste the patch to the prepared area.

h. Remove the pushpins securing the item to the repair table; secure the patch by stitching. Use a
light-duty sewing machine, size E, nylon thread, and 7 to 11 stitches per inch.

i. Turn the item over and make a second row of stitching around the prepared hole; use a light-duty
sewing machine, size E, nylon thread, and 7 to 11 stitches per inch.

0030 00-5
 TM 10-1670-272-23&P 0030 00

7. Reinforcing webbing. Repair webbing as follows:

NOTE

Reinforcing webbing may be spliced one time.

a. Cut a piece of type II, cotton webbing, long enough to extend 2-inches on each side of the
damaged area. Dip the ends of the webbing in wax.

b. Sew the webbing in place with a box-stitch formation; use a light-duty sewing machine, size E,
nylon thread, and 7 to 11 stitches per inch.
1
c. Outside stitching should be /8-inch in from the edge of the webbing. Lock stitches 1-inch.

8. Locking stow loop hood. Repair hood as follows:

a. Cut the stitching and remove the damaged hood.

7
b. Cut a 5 /8- by 2¾-inch piece of 8.2-ounce cotton, sateen cloth; turn-under the 2¾-inch edges
¼-inch.

0030 00-6
 TM 10-1670-272-23&P 0030 00

7
c. Bind the 5 /8-inch edges with ¾-inch, type III, cotton tape; turn-under ends of the tape ½-inch.
Using a light-duty sewing machine, size E, nylon thread, and 7 to 11 stitches per inch, stitch the
binding tape with two rows of stitches.

d. Position the prepared locking stow loop hooked in the same place as the one removed. Stitch the
hood in place using a light-duty sewing machine, size E, nylon thread, 7 to 11 stitches per inch in
two box-X formations. The finished hood should not exceed 3-inches in width.

0030 00-7
 TM 10-1670-272-23&P 0030 00

9. Suspension line protector cover tie-down loop. Repair the tie-down loops that are burned, frayed or
torn over one-half of the loop, as follows:

a. Cut stitching, and remove damaged loop.

9
b. Cut a 6-inch length of /16-inch, type I, nylon webbing; wax ends of webbing.

c. Position the type I webbing in the same place the damaged material was removed. Align the two
ends of the type I webbing, with the top of the webbing reinforcement.

d. Sew the loop in place on the underside of the protector cover with a 3-point WW stitch formation
on each end of the type I webbing; stay on the webbing reinforcement. Use a light-duty sewing
machine, size E, nylon thread, and 7 to 11 stitches per inch.

10. Standard 15-foot static line assembly. Repair or replace a static line assembly as follows:

NOTE

The only repair permissible on the standard 15-foot static line is the
replacement of the safety pin and the lanyard.

a. Repair. Proceed as follows:

(1) Remove damaged lanyard or safety pin by cutting lanyard or untying knots securing the
lanyard to the static line.

0030 00-8
 TM 10-1670-272-23&P 0030 00

1
(2) Cut a 5-inch length of 0.080-inch diameter corrosion resistant steel wire and form a 3 /8-inch
safety pin.

(3) Remove the core cords from a 20-inch length of type II (or type III), nylon cord. Tie an
overhand knot in each end and sear the ends. Fold the cord in half and attach to the safety
pin with a girth-hitch.

(4) Tie an overhand knot in the cord no closer than 5-inches from the safety pin. Run one end
of the cord through the static line loop, where the snap hook is attached, and secure on top
of the static line with a surgeon’s knot and a locking knot.

0030 00-9
 TM 10-1670-272-23&P 0030 00

b. Replace. A standard 15-foot static line assembly that is damaged beyond repair must be replaced
as follows:

(1) Remove the damaged static line from the deployment bag.

(2) Position the deployment bag, with the stow loop facing up, and pass the buffer end of the
new line clockwise through the deployment bag reinforcement loop. Be sure that the folded
edge of the static line is facing inward.

Deployment Bag
Reinforcement

0030 00-10
 TM 10-1670-272-23&P 0030 00

(3) Align the two ends of the buffer and stitch the static line in place, using a heavy-duty sewing
machine, size 6, nylon cord, 5 to 8 stitches per inch, and a static line stitch formation 4-
inches long.

(4) Attach a serviceable snap hook to the opposite end of the new line; make sure the fold is on
the side opposite the snap hook button.

NOTE

The folded edge of the static line will be facing outward when
passing the static line through the snap hook.

0030 00-11
 TM 10-1670-272-23&P 0030 00

(5) Stitch the static line in place with a 4-inch static line stitch formation; use a heavy-duty
sewing machine, size 6, nylon thread, and 5 to 8 stitches per inch.

Deployment Bag
Reinforcement
Loop

NOTE

The finished length of static line will be between 14-feet, 5¾-inches

and 14-feet, 9¾-inches.

(6) Fabricate and attach a new safety pin and lanyard in accordance with instructions listed in the
REPAIR procedure, above.

(7) Remove an unserviceable deployment bag and replace it with a serviceable one from stock.

11. Standard Static line extension.

a. Repair. Repair the static line extension safety pin and lanyard as follows:

(1) Remove damaged lanyard or safety pin by cutting lanyard or untying knots that secure lanyard
to pack and safety pin.

(2) Cut a 5-inch length of 0.080-inch diameter, corrosion resistant, steel wire and construct a new
safety pin as shown, above, in this WP.

0030 00-12
 TM 10-1670-272-23&P 0030 00

(3) To prepare a new lanyard, cut a 20-inch length of type II (or type III) nylon cord. Remove the
core cord, tie an overhand knot at each end, and sear both ends. Secure the cord to the
safety pin and the static line snap hook, as shown, above, in this WP.

b. Replace. Remove the 5-foot-long static line extension from the 15-foot static line. Replace the
damaged safety pin or the lanyard, as described in the repair procedures detailed above. If the
extension is unserviceable because of frays, cuts, worn areas or other defects in the fabric that
cannot be repaired by restitching, replace the extension with a serviceable item from stock.

c. Install. Install the 5-foot extension onto the static line by attaching the ring, of the extension, to the
snap hook of the 15-foot static line. Install and bend the safety pin. Slide the permanently
attached cover, on the extension, over the snap hook of the 15-foot static line; tie and tape in
place using 2-inch wide masking tape.

12. Universal Static line.

a. Repair. There is no repair authorized on the USL or the USL snap hook.

b. Remove the unserviceable portion of the USL, or snap hook, and replace it with a serviceable
item from stock.

REPLACE
Remove an unserviceable deployment bag and replace it with a serviceable one from stock.

END OF WORK PACKAGE

0030 00-13/(14 Blank)

 TM 10-1670-272-23&P 0031 00

UNIT MAINTENANCE
MC-1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
HARNESS ASSEMBLY

THIS TASK COVERS:

• Repair
• Replace

INITIAL SETUP:

Equipment Condition References

Harness cleaned, and inspected with defects recorded. Group No. 04, MAC (WP 0050 00); WP 0014 00

Tools
Brush, Artist’s (Item 33, WP 0044 00) Materials/Parts
Hammer, Ball Peen (Item 9, WP 0044 00) Beeswax, Technical, 1-lb (Item 2, WP 0057 00)
Knife (Item 13, WP 0044 00) Cloth, Duck, Nylon, Type III (Item 8, WP 0057 00)
Pliers, Needle Nose (Item 23, WP 0044 00) Felt, Type I, 3/16-inch-thick (Item 20, WP 0057 00)
Sewing Machine, Light-Duty (Table 1, Kit, Canopy Release (Item 23, WP 0057 00)
WP 0012 00) Paint, Enamel, Flat, Red (Item 27, WP 0057 00)
Sewing Machine, Medium-Duty (Table 1, Paint, Enamel, Flat, Yellow (Item 28,WP 0057 00)
WP 0012 00) Rubber, Cellular, ½-IN Thick (Item 35, WP 0057
00)
Sewing Machine, Heavy-Duty (Table 1, Tape, Nylon, Type III, 1-IN. Wide, OD (Item 50,
WP 0012 00) WP 0057 00)
Shears (Item 28, WP 0044 00) Tape, Lacing, Tying (Item 42, WP 0057 00)
Pot, Melting (Item 24, WP 0044 00) Thread, Nylon, Size E (Item 53/56, WP 0057 00)
Tester, Spring Scale (Item 30, WP 0044 00) Thread, Nylon, Size 6 (Item 58, WP 0057 00)
Wax, Paraffin, 1-lb (Item 50, WP 0057 00)
Personnel Required Webbing, Nylon, Type I, 9/16-IN. Wide (Item 67,
92R(10) Parachute Rigger WP 0057 00)
Webbing, Nylon, Type XIII (Item 71, WP 0057 00)
Webbing, Elastic, 1-IN. Wide (Item 60,
WP 0057 00)

REPAIR
The following repairs may be made to the harness assembly:

1. Hand tacking. Hand tack loose or broken tacking according to the original construction.

2. Restencilling. Restencil the harness as necessary, according to the instruction in WP 0014 00.

3. Repainting canopy release. Replace the chipped paint on the female fitting of the canopy release with
red enamel paint.

4. Restitching. Restitch with thread that matches the size and color of the original stitching. Lock all
straight stitching by back stitching at least ½-inch. Restitch directly over the original stitching; follow
the original stitch pattern as closely as possible.

REPLACE
Replace components of the harness assembly in accordance with the following procedures:

1. Elastic retainer webbing. Replace as follows:

a. Cut the damaged retainer and remove from the harness.

0031 00-1 Change 1

 TM 10-1670-272-23&P 0031 00

b. Cut a length of type I, elastic webbing, 4½-inches-long; dip the ends of the webbing ¼-inch into
the melting pot.

c. Fold the webbing, align the ends, and sew across the webbing ¼-inch from the aligned ends. Use
a light-duty sewing machine, size E nylon thread, 7 to 11 stitches per inch.

d. Fold both ends over along the row of stitching; stitch through the ends and one layer of the loop
1
/16-inch from the webbing ends. Use a light-duty sewing machine, size E nylon thread, and 7 to
11 stitches per inch.

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 TM 10-1670-272-23&P 0031 00

e. Turn the loop inside out and slide into position on the appropriate strap.

2. Horizontal back-strap. Replace as follows:

a. Remove the damaged strap from the harness assembly.

b. Cut an 84-inch length of type XIII nylon webbing; sear the ends.

c. Slip an elastic retainer webbing over each end of the strap.

d. Pass one end of the webbing through one strap adjuster, through the back-strap loops, and

0031 00-3 Change 1

 TM 10-1670-272-23&P 0031 00

through the other strap adjuster.

e. Roll each webbing end to form five plies. Use a heavy-duty sewing machine, size 6 nylon thread
and 5 to 8 stitches per inch, to sew a box formation on the rolled webbing.

f. Restencil, on the horizontal back-strap, the data that was on the removed horizontal back-strap:
the date of harness manufacture, the date placed into service, or any other pertinent data.

3. Canopy release pad. Replace as follows:

a. Cut the tacking and remove the unserviceable canopy release pad.

b. Cut a piece of type III, nylon duck cloth, 8½-inches-long and 53/8-inches-wide.

c. Fold the cloth in half; align the 53/8-inch side, and stitch ½-inch from the edge on the 53/8-inch side,
and one of the 4¼-inch sides. Use a light-duty sewing machine, size E nylon thread, and 7 to 11
stitches per inch.

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 TM 10-1670-272-23&P 0031 00

d. Turn the sleeve inside out.

e. Cut a 45/8- by 4-inch piece of ½-inch thick cellular rubber; insert it in the nylon duck sleeve.

f. Tuck in the raw edges, at the ends of the sleeve, ½-inch; stitch across each end of the sleeve 1/8-
inch from the edge. Use a light-duty sewing machine, size E nylon thread, 7 to 11 stitches per
inch.

0031 00-5 Change 1

 TM 10-1670-272-23&P 0031 00

g. Cut a 6¾-inch length of 9/16-inch type I, nylon webbing; sear the ends.

h. Center the webbing across the pad ¾-inch from one end; stitch in place with a single-X box-stitch
formation, with a double row of stitching at both ends. Use a light-duty sewing machine, size E
nylon thread, 7 to 11 stitches per inch.

Change 1 0031 00-6

 TM 10-1670-272-23&P 0031 00

i. Position the pad under the canopy release as shown.

0031 00-7 Change 1

 TM 10-1670-272-23&P 0031 00

j. Fold the tab around the harness webbing; hand tack the ends of the tab together with two-turns of
doubled and waxed tape, lacing and tying.

k. Tie the ends of the lacing with a surgeon’s knot and locking knot.

l. Hand tack the opposite end of the pad to the harness webbing, in two places, with two-turns of
doubled and waxed tape, lacing and tying.

Change 1 0031 00-8

 TM 10-1670-272-23&P 0031 00

m. Tie the ends of the lacing with a surgeon’s knot and a locking knot.

4. Ejector snap pad. Replace as follows:

a. Cut the tacking and remove the damaged ejector snap pad.

b. Cut a piece of type I, 3/16-inch-thick felt, 6-inches-long and 4-inches-wide; round all the corners on
a ¼-inch radius.

3/16-Inch Felt

c. Cut two pieces of olive green, type III nylon cloth, 6-inches-long and 4-inches-wide. Round all the
corners on a ¼-inch radius.

0031 00-9 Change 1

 TM 10-1670-272-23&P 0031 00

Type III Nylon Cloth

d. Cut a piece of type III, 1-inch-wide, olive drab (OD) nylon tape, 21-inches-long. Sear both ends.

e. Place the piece of felt between the two pieces of nylon cloth so that all the edges are even. Make
a temporary hand tack at the center of the pad, 1-inch in from each end.

f. Beginning at the center of one end, bind the replacement pad with the length of tape cut in step d.,
above. Sew the tape to the pad with two rows of stitching, using OD, size E, nylon thread, 7 to 11

Change 1 0031 00-10

 TM 10-1670-272-23&P 0031 00

stitches per inch. Sew one row, 1/8-inch in from the outer edge of the pad, and one row 3/32-inches
in from the inside edge of the tape. The running end of the tape will overlap approximately 1-inch.

g. Tack the replacement pad to the snap pad in two places, with two turns of doubled and waxed,
tape, lacing and tying. Secure the ties on the inside of the pad with a surgeon’s knot and a locking
knot. Trim the lacing to 1-inch.

0031 00-11 Change 1

 TM 10-1670-272-23&P 0031 00

5. Canopy release actuator, slide, assembly pin, and lever assemblies. Replace as follows:

NOTE

Tool kit, Capewell or equal, will be used to disassemble the release

and install the replacement parts. Fasten to the edge of the work
surface with screws furnished.

a. Install the female fitting on the holding tool and secure by closing the actuator and lever assembly.
Ensure the head of the assembly pin is seated in the No. 1 die.

Change 1 0031 00-12

 TM 10-1670-272-23&P 0031 00

b. Center the No.1 disassembly punch on the rolled end of the assembly pin. Strike several blows
with an 8 to 12-ounce hammer to break off the riveted head of the pin. Drive out the assembly
pin.

c. Keeping all components intact, remove female fitting from holder and place harness on a packing
table or other suitable surface with canopy release assembly facing up.

d. Remove assembly pin and safety clip (cover).

e. Retract slide and remove the actuator and lever assembly from the fitting ensuring the slide lip is
placed as shown.

Female Fitting
Leg of Actuator and
Lever Assembly

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 TM 10-1670-272-23&P 0031 00

f. Remove the slide.

6. Assemble as follows:

a. If the actuator and the lever are not assembled, insert the triangular tongue of the actuator into the
slot in the top of the lever.

Triangular
Tongue

b. Position the triangular hole over both bent ears of the lever by moving the triangle forward. Holes
of the actuator legs will fall in approximate alignment with the lever.

Actuator Holes
Aligned
Actuator Seated

c. Reposition new slide on the female fitting.

New Slide
Female Fitting
Positioned

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 TM 10-1670-272-23&P 0031 00

NOTE

The slide must be retracted slightly to permit the legs of the lever to
straddle slide forward of the slide ears.

d. Position the assembled actuator and lever assembly on the female fitting and align the assembly
pinholes with the female fitting assembly holes.

e. Insert the assembly pin through one leg of the actuator and lever pinholes. The assembly pin is
inserted so the pinhead is in the down position when the assembly is mounted on the holding tool.

f. Position the safety clip (cover) engaging hinge between the shoulders on the underside of the
female fitting. Push the assembly pin through the hinge and the opposite leg holes. All parts are
now engaged and pivoting on the assembly.

g. Replace die No. 1 with die No. 2 and re-engage the female fitting onto the holder.

h. Insert the washer on the assembly pin with the punch flare pin end by applying light taps with the
hammer.

i. Using punch 2A, flare pin end by applying light taps with a hammer.

j. Using punch 2B, roll the end of the pin by applying light taps with a hammer.

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 TM 10-1670-272-23&P 0031 00

k. Remove the assembly from the holding tool and check to ensure the lever rotates freely.

7. Canopy release cable loop repair. Repair as follows:

NOTE

A maximum of six (6) strands may be broken and removed.

a. Using small needle nose pliers, unwind the broken wire strand off the cord, to the point where it
meets the swaging, by twisting and turning the wire strand until it breaks off.

b. Repeat this procedure with the other end of the wire strand where it meets the latch assembly.

c. Using a small paintbrush, mark the cable at a point next to the latch assembly with yellow paint.

NOTE

Once a cable is marked as repaired, it will no longer be eligible for

further repairs and must be replaced.

END OF WORK PACKAGE

Change 1 0031 00-16

 TM 10-1670-272-23&P 0032 00

UNIT MAINTENANCE
MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
PACK TRAY

THIS TASK COVERS:

• Repair
• Replace

INITIAL SETUP:

Equipment Condition References

Pack tray cleaned with all defects recorded. Group No. 05, MAC (WP 0051 00);
WP 0044 00; TM 10-1670-299-20&P;
WP 0012 00; TM 10-1670-299-20&P
Tools
Anvil, Chuck Fastener (Item 1, WP 0044 00) Materials/ Parts
Chuck (Item 4, WP 0044 00) Beeswax (Item 2, WP 0057 00)
Cutter, Double-Bow, ½-inch (Item 5, WP 0044 00) Cloth, Duck, Nylon Type III (Item 8, WP 0057 00)
Cutter, Single-Bow (Item 6, WP 0044 00) Fastener:
Die (Item 7, WP 0044 00) Cap (Item 5, WP 0057 00)
Holder, Die, Fastener (Item 10, WP 0044 00) Post (Item 32, WP 0057 00)
Knife, Hot Metal (Item 14, WP 0044 00) Socket (Item 38, WP 0057 00)
Knife (Item 13, WP 0044 00) Stud (Item 40, WP 0057 00)
Lead, Pig, 5-lbs. (Item 15, WP 0044 00) Tape, Lacing and Tying (Item 42, WP 0057 00)
Mallet, Rawhide (Item 17, WP 0044 00) Tape, Nylon, Type III, ¾-Inch (Item 50, WP0057 00)
Press, Hand Operated (Item 25, WP 0044 00) Tape, Nylon Type III, 1¼-Inch (Item 48, WP 0057 00)
Pot, Melting (Item 24, WP 0044 00) Thread, Nylon, Size 3 (Item 54, WP 0057 00)
Sewing Machine, Darning (Table1, WP 0012 00) Thread, Nylon, Size E (Item 53/56, WP 0057 00)
Sewing Machine, Light-Duty (Table 1, WP 0012 00) Wax, Paraffin (Item 59, WP 0057 00)
Sewing Machine, Medium-Duty (Table 1, WP 0012 00) Webbing, Cotton Elastic (Item 60,WP 0057 00)
Sewing Machine, Heavy-Duty (Table 1, WP 0012 00) Webbing, Nylon, Type VI (Item 69, WP 0057 00)
Sewing Machine, Zig-Zag (Table 1, WP 0012 00) Webbing, Nylon, Type VIII (Item 70, WP 0057 00)
Shears (Item 28, WP 0012 00) Webbing, Nylon, Type XVII (Item 72, WP 0057 00)

Personnel Required
92R(10) Parachute Rigger

REPAIR
Minor repairs to the pack tray of the MC1-1B/MC1-1E parachute consist of darning small holes (or tears),
and splicing edge binding.

1. Darning. There is no limit to the number of times the pack tray may be darned. Darn small holes or
tears that do not exceed ¾-inch in length or diameter; adapt procedure for darning from WP 0012 00.

2. Splicing edge binding. Splice as follows:

a. Cut a piece of type III nylon tape, long enough to extend 1-inch beyond each end of the damage.

0032 00- 1 Change 1

 TM 10-1670-272-23&P 0032 00

b. Fold-under each end ¼-inch; center the binding over the damaged area, and stitch into place
using a medium-duty sewing machine, size E nylon thread, and 7 to 11 stitches per inch.
Overstitch the ends of the splice at least ½-inch.

REPLACE
Replace the components of the pack tray as follows:

1. Pack tray. Remove the unserviceable pack tray and replace it with a new one from stock, as follows:

a. Unsnap the diagonal and horizontal back-strap retainers and remove the pack tray.

b. Place the harness on the new pack tray. Place the diagonal and horizontal back-strap retainers
over the back-strap; snap the retainers.

Diagonal
Backstrap
Retainer

Horizontal
Backstrap
Retainer

2. Back-strap keepers. Replace as follows:

a. Cut the stitching; remove the damaged horizontal back-strap keeper and loose threads.

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 TM 10-1670-272-23&P 0032 00

b. Cut an 11½-inch length of type XVII nylon webbing for the horizontal back-strap keeper.

c. Position the new horizontal backstrap keeper 13/8-inches above the binding tape; align both edges
even with the stitches on each side.

d. Sew the horizontal backstrap keeper in place using a heavy-duty sewing machine, size 3 nylon
thread, and 5 to 8 stitches per inch, with two 15/8-inch and one 3½-inch box-X-stitch formation,
with a double row on each end.

e. Cut the stitching; remove the damaged diagonal back-strap keeper and the loose threads.

f. Cut a 6-inch length of type XVIII nylon webbing for each diagonal back-strap keeper to be
replaced.

g. Position the diagonal back-strap keeper, as shown below, and sew in place. Use a heavy-duty
sewing machine, size 3 nylon thread and 5 to 8 stitches per inch, with a 15/8-inch box-X-stitch
formation.

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 TM 10-1670-272-23&P 0032 00

3. Back-strap retainers. Replace as follows:

a. Cut the stitching; remove the damaged keeper and the loose threads.

b. Cut a 8 ¼-inch length of type VI nylon webbing; sear the ends of the webbing.

8¼
IN.

c. Fold-under one end, 1-inch; sew with a box-X-stitch formation. Use a heavy-duty sewing
machine, size 3 nylon thread, and 5 to 8 stitches per inch.

d. Measure 2¾-inches from the seared end of the webbing, and place a 1¾-inch square piece of
type III nylon duck on the opposite side of the webbing from the folded end.

Change 1 0032 00- 4

 TM 10-1670-272-23&P 0032 00

e. Sew the duck in place; use a heavy-duty sewing machine, size 3-nylon thread, and 5 to 8 stitches
per inch.

f. Install a socket assembly in the center of the folded end, and a stud assembly in the center of the
reinforcement duck, as shown below. Use the following installation procedures:

(1) Cut the fabric for the socket and stud assemblies; use a mallet and lead cutter block, and an
appropriate sized double- or single-bow cutter.

0032 00- 5 Change 1

 TM 10-1670-272-23&P 0032 00

(2) Installation of a snap fastener may be performed by three different methods. The most
common method is the hand-held method that requires the use of a leather mallet, or other
non-steel impact device; a holder to hold the appropriate sized chuck; and an anvil, which is
used to contain a compatible sized die.

(3) A second method of installing a snap fastener assembly is by use of the hand-operated
press. The hand-operated press is a lever-type device that can accommodate an
appropriate sized chuck and die. When installed in the hand-operated press, the chuck and
die are individually secured in position by a threaded screw that is tightened using a suitable
sized key (Allen-type hexagon wrench) or a flat-tip (common-head) screwdriver, as
applicable. The third method of snap fastener installation is by use of the foot-operated
press which, except for the means of operation, functions similar to the hand-operated press.

Change 1 0032 00- 6

 TM 10-1670-272-23&P 0032 00

(4) Using the specifics in WP 0044 00, ascertain the size die and chuck required for installing the
fastener cap and socket, or stud and post, as applicable.

(5) Place the selected chuck in the open end of the holder and secure the chuck in place; use
the locking screw located on the one side of the holder. Place the appropriate die into the
anvil.

(6) Fit the socket or stud, as applicable, on the chuck lower end. Place the cap or post, as
applicable, on the die with the barrel facing up.

(7) Position the material over the barrel of the cap or post. Ensure that the fastener socket or
stud will be located on the proper side of the material for subsequent fastener engagement.

(8) Place the socket or stud, on the barrel of the cap or post. With an applied strike from a
mallet, clinch the two snap fastener components to the material.

(9) Remove the clinched snap fastener components from the chuck and die set; check the
seating of the joined components. If the applicable components are not properly seated,
repeat the procedure from step (8), above.

(10) Check the engagement of the installed snap fastener components with the opposite mating
components; ensure the open and closed snapping process is accomplished without
hindrance. If the snap engaging process cannot be accomplished without difficulty, replace
the opposite mating snap fastener components using the procedures in steps (4) through (9),
above.

(11) As required, remove the chuck and die from the applicable snap fastener tools by reversing
the procedure in step (5), above.

0032 00- 7 Change 1

 TM 10-1670-272-23&P 0032 00

(12) Installation of the snap fastener assemblies, by hand- or foot-operated press, can be
accomplished using the procedures above, except the chuck and die will be secured within
the applicable press assembly, using the available locking screws.

Chuck And Die Installed In Hand-Operated Press

Hand-Held Tools With Snap Fastener Components Prepared For Use

Change 1 0032 00- 8

 TM 10-1670-272-23&P 0032 00

g. Position the new diagonal back-strap retainers as shown in illustrations A and B; sew in place
using a heavy-duty sewing machine, size 3 nylon thread, 5 to 8 stitches per inch, and a box-X-
stitch formation.

0032 00- 9 Change 1

 TM 10-1670-272-23&P 0032 00

h. Position a new horizontal back-strap retainer as shown, below. Sew the retainer in place using a
heavy-duty sewing machine, size 3, nylon thread, 5 to 8 stitches per inch, and a box-X-stitch
formation.

4. Pack closing loop. Replace as follows:

a. Cut the damaged loop at the first row of stitching securing the loop to the pack tray.

Change 1 0032 00- 10

 TM 10-1670-272-23&P 0032 00

b. Cut a 12-inch length of 1¼-inch, type III, nylon tape; sear the ends.

c. Measure and mark 4-inches from each end. Fold the tape between the two marks to the center of
the webbing and sew in place. Use a light-duty sewing machine, size E nylon thread, and 7 to 11
stitches per inch.

Waxed
Area
3 ½ IN.
¼ IN. ¼ IN.

Details For Forming And Waxing Loop

d. Fold tape in the center and dip in a mixture of 50% beeswax and 50% paraffin wax for a distance
of 1¾-inches.

e. Fold the tape in the center. Place on top of the original stitch formation of the opening loop. Sew
in place using a light-duty sewing machine, size E nylon thread, 7 to 11 stitches per inch, and a
4-inch, 4-point WW stitch formation.

Details For Stitching Loop To Pack Tray

5. Inside retainer band keeper. Replace as follows:

a. Cut the stitching and remove the damaged keeper from the side flap panel.

0032 00- 11 Change 1

 TM 10-1670-272-23&P 0032 00

b. Cut an 8-inch length of 1¼-inch-wide, type III, nylon tape; sear the ends.

c. Mark the tape 2-inches from each end. Fold the tape between the two 2-inch marks, to the center
of the tape. Stitch each side using a light-duty sewing machine, size E nylon thread, and 7 to 11
stitches per inch.

d. Place the tape, with the folded edges up and the ends turned-under 1-inch, in the exact spot from
which the damaged keeper was removed. Stitch in place with a single-X box-stitch formation, with
a double row of stitching at the inside edges. Use a light-duty sewing machine, size E nylon
thread, and 7 to 11 stitches per inch.

Change 1 0032 00- 12

 TM 10-1670-272-23&P 0032 00

6. Outside retainer band keeper. Replace as follows:

a. Cut the stitching and remove the damaged keeper from the side flap panel.

b. Cut a 7-inch length of type IV nylon webbing, 1-inch-wide; sear the ends.

c. Mark the webbing ½-inch and 11/16-inch from each end. Mark the webbing 17/8-inches from each
11
/16-inch mark.

d. Fold-under the webbing at the ½-inch mark and place in the exact location the damaged keeper
was removed. Stitch in place with three straight rows of stitching. Use a light-duty sewing
machine, size E nylon thread, and 7 to 11 stitches per inch.

7. Static Line Slack Retainer. Replace as follows:

a. Cut the stitching of the damaged retainer without cutting the pack body.

b. Cut a 3¼-inch length of class I, cotton elastic webbing.

c. Fold-under the ends ½-inch.

d. Position the new retainer in the exact spot from which the damaged retainer was removed.

0032 00- 13 Change 1

 TM 10-1670-272-23&P 0032 00

e. Stitch in place with two rows of zig-zag stitching; follow the original construction. Use a zig-zag
sewing machine, size E, nylon thread, 7 to 11 stitches per inch. Overstitch the ends ¼-inch.

8. Waistband. Replace as follows:

NOTE

All unserviceable waistbands will be replaced with nylon waistbands

from cannibalization.

a. Cut the stitching that secures the waistband to the pack tray. Remove the loose threads. Ensure
the pack tray material is not damaged during the cutting process.

b. Turn-under the wide end of the replacement waistband 5/8-inch.

c. Position the waistband on the outside of the pack in the exact spot from which the damaged
waistband was removed.

Change 1 0032 00- 14

 TM 10-1670-272-23&P 0032 00

d. Sew the waistband using a heavy-duty sewing machine, size 3 nylon thread, and 5 to 8 stitches
per inch; follow the details of the original construction.

Horizontal
Horizontal Backstrap
Backstrap Retainer
Keeper

9. Waistband adjuster panel. Replace a damaged waistband adjuster panel by fabricating as follows:

a. Cut the stitching that secures the original adjuster panel to the pack tray and remove the
unserviceable panel; remove the cut stitching. Ensure the pack tray material is not damaged
during the cutting process.

b. If the metal adapter on the original adjuster panel is serviceable, cut the panel webbing and
remove the adapter for further use. If the adapter is not considered serviceable, replace with a
serviceable item from stock.

c. Cut a 16¼-inch length and a 5-inch length of 123/32-inch-wide, type VIII, green nylon webbing; sear
the ends of both lengths.

0032 00- 15 Change 1

 TM 10-1670-272-23&P 0032 00

d. Pass the 16¼-inch length of webbing around the center bar of a serviceable adapter and align the
webbing ends. This length of material shall constitute the adjuster panel webbing.

e. Insert the 5-inch webbing length under the 16¼-inch webbing length, and pass the webbing length
around the adapter center bar to form a buffer. Extend the bottom end of the buffer webbing
¼-inch beyond the top end.

f. Hand tack the buffer tightly to the adjuster panel webbing with two-turns of doubled tape, lacing
and tying. Secure the tacking ends, on the bottom side of the adjuster panel webbing, with a
square knot. Trim the tacking thread ends to ¼-inch.

Change 1 0032 00- 16

 TM 10-1670-272-23&P 0032 00

g. Beginning at a point 1¾-inches back from where the panel webbing passes around the adapter
center bar, spread the webbing loose ends to form a 3½-inch width, as shown below. Secure the
formed panel webbing by stitching; use a light-duty sewing machine, size E nylon thread, 7 to 11
stitches per inch.

h. Position the fabricated adjuster panel in the original location on the pack tray; secure the panel to
the pack tray main panel using a heavy-duty sewing machine, size 3 nylon thread, and 5 to 8
stitches per inch.

10. Waistband extension. Refer to TM 10-1670-299-20&P.

END OF WORK PACKAGE

0032 00-17/(18 Blank) Change 1

 TM 10-1670-272-23&P

CHAPTER 4
DIRECT SUPPORT MAINTENANCE INSTRUCTIONS
FOR
MC1-1B TROOP BACK PARACHUTE ASSEMBLY
MC1-1E TROOP BACK PARACHUTE ASSEMBLY
 TM 10-1670-272-23&P 0033 00

DIRECT SUPPORT MAINTENANCE

MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
SEWING PROCEDURES

THIS TASK COVERS:

•= Basting and Temporary Tacking
•= Stitching and Restitching
•= Zig-Zag Sewing

INITIAL SETUP:

Equipment Condition Personnel Required

Unpacked. Canopy with defects recorded. 92R(10) Parachute Rigger
Clean.
Materials/ Parts
Tools Specified in paragraph applicable to the item
Specified in paragraph applicable to the item being repaired.
being repaired.
References
WP 0014 00

NOTE

Sewing requirements will vary according to the type of item being

repaired and the type of repair being made. The type of sewing
machine, type of thread, the stitch range, and the stitch pattern (if
applicable) required to accomplish a sewing procedure will be
specified in the paragraph applicable to the item being repaired. All
original stitching that is cut during the performance of a sewing
procedure will be removed from the applicable item. Immediately
after the accomplishment of a machine sewing procedure, trim
thread ends to a point as close as possible to the material that has
been sewn.

BASTING AND TEMPORARY TACKING

Basting and temporary tacking are hand-sewing methods used to temporarily hold layers of cloth fabric
together while a repair is being performed. The following is a list of procedures that apply to basting and
temporary tacking actions:

1. Basting and temporary tacking should be made using thread that is of a contrasting color to the
material being worked.

2. Basting and temporary tacking will be performed using a single strand of size A, nylon thread, or ticket
No. 24/4 cotton thread.

3. When basting, do not tie knots at any point in the thread length. Also, the sewing should be made
with two stitches per inch.

4. Immediately upon completion of a repair, remove previously made basting or temporary tacking.

0033 00-1
 TM 10-1670-272-23&P 0033 00

STITCHING AND RESTITCHING

Perform stitching and restitching as follows, refer to tables 1 and 2, below.

1. Parachute canopy assemblies. The stitching and restitching made on parachute canopies should be
accomplished with thread that is contrasting in color to the fabric being restitched. If contrasting color
thread is not available, thread of matching color may be used, providing all other specifications are
met. Straight stitching and restitching on parachute canopy assemblies should be locked by at least
2-inches at each end of a stitch row, when possible. Zig-Zag stitching does not require locking;
however, zig-zag restitching should extend at least ¼-inch into undamaged stitching at each end,
when possible. When restitching parachute canopy assemblies, stitch directly over the original
stitching and follow the original stitch pattern as closely as possible.

Table 1. Sewing Machine Code Symbols.

CODE SYMBOL SEWING MACHINE

SEWING MACHINE, INDUSTRIAL: General sewing; 301 stitch; light duty;

LD
NSN 3530-01-177-8590.
SEWING MACHINE, INDUSTRIAL: Zig-zag; 308 stitch; medium duty;
MD ZZ
NSN 3530-01-181-1421.
SEWING MACHINE, INDUSTRIAL: Zig-zag; 308 stitch; light duty;
LD ZZ
NSN 3530-01-181-1420.
SEWING MACHINE, INDUSTRIAL: General sewing; 301 stitch; heavy duty;
HD
NSN 3530-01-177-8588.
SEWING MACHINE, INDUSTRIAL: General sewing; 301 stitch; medium duty;
MD
NSN 3530-01-177-8591.
SEWING MACHINE, INDUSTRIAL: Darning; lock stitch;
DN
NSN 3530-01-177-8589.
SEWING MACHINE, INDUSTRIAL: 301 stitch; light-heavy duty;
LHD
NSN 3530-01-186-3079.
SEWING MACHINE, INDUSTRIAL: 301 stitch; double-needle;
ND
NSN 3530-01-182-2873.

Table 2. Stitching and Restitching Specifications.

RECOMMENDED
SEWING STITCHES THREAD
COMPONENT
MACHINE PER INCH SIZE
(CODE SYMBOL)

Vent Cap LD DN 7 to 11 E
Vent Line MD ZZ 7 to 11 E
Radial Tape LD ZZ 7 to 11 E
Gore Section LD DN 7 to 11 Darn E
Suspension Line MD ZZ 7 to 11 E

0033 00-2
 TM 10-1670-272-23&P 0033 00

2. Other parachute items. Stitching and restitching on other parachute items constructed from cloth,
canvas, and webbing should be accomplished with thread that matches the color of the original
stitching, when possible. All straight stitching should be locked by backstitching at least ½-inch.
Restitching should be locked by overstitching each end of the stitch formation by ½-inch. Zig-zag
stitching does not require locking; however, zig-zag restitching should extend at least ¼-inch into
undamaged stitching at each end, when possible. Restitching should be made directly over the
original stitching; follow the original stitch pattern as closely as possible.

ZIG-ZAG SEWING
(Refer to Tables 1 and 2). Components of the MC1-1B/MC1-1E, except parachute canopy, that have
sustained cut or tear damage, may be repaired by zig-zag sewing, provided the applicable damaged area
does not have any material missing and the cut or tear is straight or L-shaped. Should the damaged area
be irregular shaped or have material missing, the repair will be achieved by either darning or patching, as
required. A zig-zag sewing repair will be accomplished using a zig-zag sewing machine, with the following
procedures:

1. Set the sewing machine to the maximum stitch width.

2. Beginning at a point ¼-inch beyond one end of the cut or tear, stitch lengthwise along the damaged
area to a point ¼-inch beyond the opposite end of the cut or tear.

3. The cited stitching procedure will also apply to an L-shaped cut or tear.

4. If applicable, restencil informational data or identification marks a prescribed in WP 0014 00.

END OF WORK PACKAGE

0033 00-3/(4 Blank)

 TM 10-1670-272-23&P 0034 00

DIRECT SUPPORT MAINTENANCE

MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
SEARING AND WAXING

THIS TASK COVERS:

• Searing
• Waxing

INITIAL SETUP:

Tools
Pot, Melting, Electric (Item 24, WP 0044 00) Personnel Required
Knife, Hot, Metal (Item 14, WP 0044 00) 92R(10) Parachute Rigger

Materials/Parts Equipment Condition

Beeswax (Item 2, WP 0057 00) Unpacked.
Wax, Paraffin (Item 59, WP 0057 00)

NOTE

Cotton tape, webbing, or cord will not be seared.

NOTE

Fabric materials such as cord, tape, and webbing, that are cut for
use in the maintenance of the MC1-1B/MC1-1E parachute, will
normally be heat-seared or dipped in a melted wax mixture, as
applicable, to prevent the material from fraying or unraveling.
However, in some instances, the preparation of the material may not
be necessary and will be specified accordingly.

SEARING
The cut ends of nylon tape, webbing and cord lengths may be prepared by heat-searing, which is
performed by pressing the raw end of the material against a hot metal surface (knife) until the nylon has
melted sufficiently. Avoid forming a sharp edge or lumped effect on the melted end.

WAXING
The fraying or unraveling of cotton or nylon tape, webbing, and cord length ends may be prevented by
dipping ½-inch of the raw end of the material into a thoroughly melted mixture of half beeswax and half
paraffin in an electric melting pot. The wax temperature should be substantial enough to ensure the wax
completely penetrates the material, rather than just coating the exterior fabric.

END OF WORK PACKAGE

0034 00-1/(2 Blank)

 TM 10-1670-272-23&P 0035 00

DIRECT SUPPORT MAINTENANCE

MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
MARKING AND RESTENCILLING

THIS TASK COVERS:

• Marking
• Restencilling
• Remarking and Restencilling

INITIAL SETUP:

Materials/Parts Personnel Required

Brush, Stenciling (Item 4, WP 0057 00) 92R(10) Parachute Rigger
Ink, Marking, Strata-Blue (Item 22, WP 0057 00)
Marker, Felt Tip, Black (Item 25, WP 0057 00) Equipment Condition
Pen, Ballpoint (Item 30, WP 0057 00) Laid out on packing table or other suitable area.
Stencil Board, Oiled (Item 39, WP 0057 00)

NOTE

Stenciling should be used whenever possible. A ballpoint pen or felt

tip marker should be used only were stenciling is not possible, or
when stenciling devices are not available. Any type ballpoint pen
using black or blue ink may be used for marking on labels only.

Original stenciled data or marking that becomes faded, illegible,

obliterated, or removed as a result of performing a repair procedure,
will be remarked with a ballpoint pen, felt tip marker, or restenciled.
All marking or restencilling will be done on, or as near as possible to,
the original location and should conform to the original lettering type
and size.

MARKING
Using marking devices, such as a ballpoint pen or felt tip marker, mark on, or as near as possible to, the
original location and conform to the original lettering type and size.

RESTENCILING
Proceed as follows:

1. Cut oiled stencil board to match the original lettering type and size of data to be restenciled.

2. Place cut stencil board over, or as near as possible to, the original marking to be restenciled.

3. Place an additional sheet of stencil board beneath the area to be restenciled to prevent the marking
ink from penetrating to other areas.

4. Hold the stencil board in place and, using the stenciling brush filled with parachute marking ink,
restencil the original marking.

0035 00-1
 TM 10-1670-272-23&P 0035 00

REMARKING AND RESTENCILING

Remark/restencil the original stenciled data/markings that become faded, illegible, obliterated, or that have
been removed as a result of performing a repair procedure. Ensure all marking/restencilling is on, or as
near as possible to, the original location, and conforms to the original lettering type and size.

END OF WORK PACKAGE

0035 00-2
 TM 10-1670-272-23&P 0036 00

DIRECT SUPPORT MAINTENANCE

MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
VENT LINES

THIS TASK COVERS:

• Repair
• Replace

INITIAL SETUP:

Equipment Condition
Unpacked. Canopy in proper layout. Personnel Required
92R(10) Parachute Rigger
Tools
Knife (Item 13, WP 0044 00)
Knife, Hot Metal (Item 14, WP 0044 00) References
Shears (Item 28, WP 0044 00) Group No. 01, MAC (0047 00)
Zig-Zag Sewing Machine (Table 1, WP 0012 00)

Materials/ Parts
Cord, Nylon, Type II (Item 14, WP 0057 00)
Thread, Nylon, Size E (Item 53/56, WP 0057 00)

REPAIR
Repair vent lines requiring restitching, as follows:

1. Use a zig-zag sewing machine to restitch any loose or broken stitches.

2. Restitch over the original stitch pattern using nylon thread, size E. Overstitch ½-inch to lock stitches.

REPLACE
Replace missing or damaged vent lines as follows:

1. Place canopy in proper layout on the table and trace the damaged vent line across the apex, from
upper band.

2. Remove damaged vent line by cutting stitching that holds the line to the canopy at both sides of the
apex.

3. Cut a 27-inch length of type II, nylon cord. Sear or dip ends of cord.

0036 00-1
 TM 10-1670-272-23&P 0036 00

4. Position one end of the new vent line in the exact location formerly occupied by the end of the old line.

NOTE

Measuring from the outside edge of the upper lateral band, the vent
line should extend 4-inches into the radial seam.

5. Using a zig-zag sewing machine and nylon thread, size E, stitch the new line in place. Begin stitching
on the line ¼-inch above the upper edge of the upper lateral band; sew to ¼-inch beyond the end of
1
the line, 7 to 11 stitches per inch and /8-inch wide.

6. Pass the remaining end of the line under the other vent lines, and through the bridle loop, as required.

7. Position and sew the remaining end of the line to the opposite side of the canopy, as detailed in steps
4. and 5., above.

END OF WORK PACKAGE

0036 00-2
 TM 10-1670-272-23&P 0037 00

DIRECT SUPPORT MAINTENANCE

MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
VENT CAP

THIS TASK COVERS:

•= Replace

INITIAL SETUP:

Tools
Knife, Hot Metal (Item 14, WP 0044 00)
Sewing Machine, Light-Duty (Table 1, WP 0012 00) Personnel Required
Sewing Machine, Medium-Duty (Table 1, 92R(10) Parachute Rigger
WP 0012 00)
Shears (Item 28, WP 0044 00) Equipment Condition
Unpacked. Canopy in proper layout.
Materials/Parts
Cloth, Parachute, 1.1-oz. (Item 11, WP 0057 00) References
Stencil Board, Oiled (Item 39, WP 0057 00) Group No. 01, MAC (WP 0047 00);
Tape, Nylon, Type III, 1½-in (Item 49, 0057 00) WP 0012 00
Thread, Nylon, Size E (Item 53/56, WP 0057 00)

REPLACE
Replace a missing or damaged vent cap as follows:

1. Cut off the damaged vent cap close to the upper lateral band. If the vent cap has been replaced
previously, remove the entire vent cap by carefully cutting the stitching.

2. Using the illustration below as a guide, prepare a vent cap pattern from a suitable piece of stencil
board.

0037 00-1
 TM 10-1670-272-23&P 0037 00

3. Cut a piece of 1.1-ounce rip-stop pattern nylon parachute cloth to conform to pattern (see step 2.,
above); fabricate new vent cap according to details illustrated, below. Make the seam before
binding the top opening in the vent cap. Cut a piece of 1½-inch, type III tape, 10¾-inches-long;
sear the ends, and fold in half lengthwise. Overlap ends 1-inch, after turning raw edges of tape
¼-inch. Position and baste reinforcement to newly fabricated vent cap. Sew reinforcement band
to vent cap, with two rows of stitching, as indicated, below.

SECTION A-A SECTION B-B SECTION C-C

4. Smooth the canopy apex on the worktable. Center the new vent cap over the apex, with the bridle
loop centered under the vent cap opening.

5. Turn-under the raw edge of the vent cap until the measurement between the top edge of the vent
cap binding and the fold at the bottom is at 9-inches.

6. Position basted vent cap on the upper half of the lateral band and pin, or baste, in position.

7. Sew the vent cap to the upper lateral band, with two rows of stitching, as illustrated above.

8. Invert the canopy and trim the excess material so that the raw edge is just below the top edge of
1
the lateral band. Make a second row of stitching /16-inch from the top edge of the lateral band.

9. The stitching will be the same as specified in tables 1 and 2, WP 0012 00.

END OF WORK PACKAGE

0037 00-2
 TM 10-1670-272-23&P 0038 00

DIRECT SUPPORT MAINTENANCE

MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
GORE SECTIONS

THIS TASK COVERS:

•= Replace

INITIAL SETUP:

Tools: Personnel Required:

Knife (Item 13, WP 0044 00) 92R(10) Parachute Rigger
Needle, Basting (Item 18, WP 0044 00)
Sewing Machine, Light Duty (Table 1, WP 0012 00) Equipment Condition:
Sewing Machine, Darning (Table 1, WP 0012 00) Parachute canopy laid out on table.
Shears (Item 28, WP 0044 00)
References:
Materials/Parts: Group No. 01, MAC (WP 0047 00)
Brush, Stenciling (Item 4, WP 0057 00)
Cloth, Parachute Mending (Item 10, WP 0057 00)
Cloth, Parachute, Nylon, 1.1-oz. (Item 11, WP 0057 00)
Thread, Cotton, Ticket 24/4 (Item 52, WP 0057 00)
Stencil Board, Oiled (Item 39, WP 0057 00)
Thread, Nylon, Size A (Item 55, WP 0057 00)
Thread, Nylon, Size E (Item 53/56, WP 0057 00)

REPLACE
When replacing gore sections, use 1.1-ounce rip-stop pattern, nylon cloth of same color as that being
replaced. If the same color cloth is not available, another color may be used. When replacing section 1 of
gore 1, restencil gore number and information data block on the replacement section. For other gores,
stencil gore numbers as necessary.

NOTE

Mending cloth will be used for patching only.

1. Section 3 or 4. Replace as follows (see illustration on next page):

0038 00-1
 TM 10-1670-272-23&P 0038 00

a. Invert the canopy and center the damaged section on the worktable.

b. Smooth the area around the damaged section; ensure that the radial and diagonal seams are
straight. Place the pins through radial and diagonal seams as far above and below the damaged
sections, as necessary.

c. Remove damaged section by cutting fabric ½-inch from all seams, except at a skirt and upper or
lower lateral band where sections can be cut out flush with the lateral band.

d. Fold back raw edges of trimmed seams ½-inch and baste to the seam with ticket No. A, nylon
thread, or ticket No. 24/4 cotton thread.

0038 00-2
 TM 10-1670-272-23&P 0038 00

e. Bias-cut a piece of appropriate nylon parachute cloth for the new section; allow at least 3-inches
of extra fabric on each raw edge.

f. Position the new fabric so that the selvedge edges lie parallel to, and overlap, diagonal seams.

g. Turn-under the edges along the diagonal seams ½-inch so that the turned edges are aligned with
the outside edges of the diagonal seams. Secure to the table with pushpins.

h. Turn-under the edges along the radial seam so the folded edges are aligned with the center of the
radial seams. Measure 1-inch from the outside of the radial seam as a guide and cut off the
excess material. Turn-under edges along radial seam so the folded edge is aligned with the
outside edge of the radial seam.

i. Baste all edges and remove the pushpins.

j. Using a light duty sewing machine and size E, nylon thread, sew a row of stitches, 7 to 11 stitches
per inch, around the outside edge of the new section, as shown in illustration above.

k. Turn the canopy right side out. Using a light duty sewing machine, and size E, nylon thread, sew
a row of stitches, 7 to 11 stitches per inch, around the inside edge of the new section.

l. Remove all basting and make certain radial tape moves freely in the channel.

2. Section 1 or 2. Replace as follows (see illustrations below and next page):

0038 00-3
 TM 10-1670-272-23&P 0038 00

a. Invert canopy and center damaged section on the worktable.

b. Smooth the area around the damaged section; ensure that the radial and diagonal seams are
straight. Place pins through the radial and diagonal seams, as far above and below the damaged
sections as necessary.

c. Remove the damaged section by cutting the fabric ½-inch from all seams, except at the lower
lateral band, where the section can be cut out flush with the lateral band.

d. If the damage does not extend into the corner bounded by the radial seam and the lower lateral
band, cut the fabric diagonally across the corner with the warp or fill, leaving the corner intact.
Leave enough fabric at the corner so that when the new section is installed it will not overlap the
pocket band or V-tab. Adapt the procedures in step 1., above, to complete the section
replacement.

e. If the damage extends into the corner bounded by the radial seam and lower lateral band, cut and
remove the stitching that holds the V-tab and pocket band (if present). Adapt procedures in step
1., above, to replace the section. Then sew the V-tab and pocket band in place.

f. Fold back the raw edges of the trimmed seams ½-inch and baste to the seam with size A, nylon
thread, or ticket No. 24/4 cotton thread.

0038 00-4
 TM 10-1670-272-23&P 0038 00

g. Bias-cut a piece of appropriate nylon parachute cloth for new section, allowing at least 3-inches of
extra fabric on each raw edge. Position new fabric so that the selvedge edges lie parallel to and
overlap the diagonal seams.

h. Turn-under the edges along the diagonal seams ½-inch so that the turned edges are aligned with
the outside edges of the diagonal seams. Secure to the table with pushpins.

i. Turn-under the edges along the radial seam so the folded edges are aligned with the center of the
radial seams. Measure 1-inch from the outside edge of the radial seams as a guide and cut off
the excess material. Turn-under the edges along the radial seam so the folded edge is aligned
with the outside edge of the radial seam.

j. Baste all edges and remove the pushpins.

k. Using a light duty sewing machine and size E, nylon thread, sew a row of stitches, 7 to 11 stitches
per inch, around the outside edge of the new section.

l. Turn the canopy right-side-out. Using a light-duty sewing machine and size E, nylon thread, sew a
row of stitches, 7 to 11 stitches per inch, around the inside edge of the new section.

m. Remove all basting; make certain the radial tape moves freely in the channel.

3. Section 5. Replace as follows (see illustrations A and B below and next page):

A. Inside View

0038 00-5
 TM 10-1670-272-23&P 0038 00

B. Outside View

a. Invert the canopy and center the damaged section on the worktable.

b. Smooth the area around the damaged section; ensure that the radial and diagonal seams are
straight. Place the pins through the radial and diagonal seams as far above and below the
damaged sections as necessary.

c. Remove the damaged section by cutting fabric ½-inch from all the seams except at a skirt and
upper or lower lateral band, where the section can be cut out flush with the lateral band.

d. Fold back the raw edges of the trimmed seams ½-inch and baste to the seam with size A, nylon
thread, or ticket No. 24/4, cotton thread.

e. Bias-cut a piece of appropriate nylon parachute cloth for the new section; allow at least 3-inches
of extra fabric on each raw edge.

f. Position the new fabric so that the selvedge edges lie parallel to, and overlap, the diagonal seams.

g. Turn-under the edges along the radial seams ½-inch so that the turned edges are aligned with the
outside edges of the diagonal seams. Secure to the table with pushpins.

h. Turn-under the edges along the radial seam so the folded edges are aligned with the center of the
radial seams. Measure 1-inch from the outside of the radial seam as a guide and cut off the
excess material. Turn-under the edges along the radial seam so the folded edge is aligned with
the outside edge of the radial seam.

i. Baste all edges and remove the pushpins.

j. Using a light-duty sewing machine and size E, nylon thread, sew a row of stitches, 7 to 11 stitches
per inch, around the outside edge of the new section.

k. Turn the canopy right-side-out. Using a light-duty sewing machine and size E, nylon thread, sew a
row of stitches, 7 to 11 stitches per inch, around the inside edge of the new section.

l. Remove all basting and make certain the radial tape moves freely in the channel.

END OF WORK PACKAGE

0038 00-6
 TM 10-1670-272-23&P 0039 00

DIRECT SUPPORT MAINTENANCE

MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
RADIAL TAPE

THIS TASK COVERS:

•= Replace

INITIAL SETUP:

Tools:
Needle, Tacking (Item 19, WP 0044 00)
Sewing Machine, Zig-Zag (Table 1, WP 0012 00) Personnel Required
Shears (Item 28, WP 0044 00) 92R(10) Parachute Rigger

Materials/Parts Equipment Condition

9
Webbing, Nylon, Type I, /16-IN. (Item 67, Parachute canopy laid out on table.
WP 0057 00)
Thread, Nylon, Size E (Item 53/56, WP 0057 00)

REPLACE

1. Place canopy in proper layout on repair table or repair surface; apply partial tension to suspension
lines.

2. Trace damaged radial tape from the canopy skirt, through the radial seam channel, to the canopy
apex.

3. Cut the stitching that holds the vent line and the radial tape to the upper lateral band and radial seam;
lay next to the end of the vent line.

4. Cut the stitching that holds the suspension line and radial tape to the lower lateral band and the radial
seam; lay it next to the end of the suspension line. Do not remove the damaged radial tape at this
time.

5. Tack the end of the new radial tape to the end of the damaged radial tape at the upper lateral band.

6. Grasp the end of the damaged radial tape, at the lower lateral band, and pull the old tape through the
radial seam channel until the new tape appears at the lower lateral band. Relieve the tension from the
suspension lines.

7. Cut the old tape from the new tape at the tacking. Hand tack the ends of the new radial tape in place,
at the upper and lower lateral bands, after taking appropriate measurement of the adjacent tape.

8. Cut the ends of the new tape at the outside edges of the upper and lower lateral bands. Reposition
the ends of the vent line and suspension line; sew in place according to the original construction.

END OF WORK PACKAGE

0039 00-1/(2 Blank)

 TM 10-1670-272-23&P 0040 00

DIRECT SUPPORT MAINTENANCE

MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
SUSPENSION LINE

THIS TASK COVERS:

•= Replace

INITIAL SETUP:

Equipment Condition Personnel Required

Unpacked. Canopy in proper layout. 92R(10) Parachute Rigger

Tools Materials/ Parts

Knife (Item 13, WP 0044 00) Beeswax (Item 2, WP 0057 00)
Knife, Hot Metal (Item 14, WP 0044 00) Cord, Nylon, Type II (Item 14, WP 0057 00)
Pot, Melting, Electric (Item 24, WP 0044 00) Thread, Nylon, Size E (Item 53/56, WP 0057 00)
Sewing Machine, Medium-Duty, Zig-Zag
(Table 1, WP 0012 00) References
Shears (Item 28, WP 0044 00) Group No. 01, MAC (WP 0047 00)

REPLACE
Replace a suspension line as follows:

1. Place the canopy in proper layout on the repair table or repair surface, and apply partial tension to the
suspension lines.

2. Trace the damaged suspension line, from canopy skirt to link assembly.

3. Cut the stitching that holds the line to the canopy skirt and the V-tab. Do not remove the V-tab unless
it is damaged. Cut the stitching that holds the line to the connector link; remove the line.

4. Cut a sufficient length of type II, nylon cord to allow sewing through the V-tab, and tying and sewing at
the connector link. Sear or dip one end of the cord in wax.

5. Pass the seared end of the new cord up through the V-tab. Position the seared end in the exact
location formerly occupied by the old line; sew in place according to details shown if figure below. Use
a zig-zag sewing machine, size E nylon thread, and 7 to 11 stitches per inch. Start sewing ¼-inch
below the V-tab.

0040 00-1
 TM 10-1670-272-23&P 0040 00

6. Hold the adjacent line and the new line tightly together at the lower lateral band; trace both lines, from
the canopy skirt to the link assembly, under equal tension. Mark the new line at a point even with the
inside edge of the link. Apply equal tension to both lines and check correctness of marking.

7. Relieve tension on all lines and attach the new suspension line to the link assembly with a clove hitch
and a half hitch.

Clove Hitch

Clove Hitch And Half Hitch

8. Drawing the new line down through the V-tab may reverse the procedures above; attach the new line
to the link assembly, then to the canopy skirt.

9. Extend each tie running end toward the canopy skirt and, beginning at a point 2-inches above the
knots made in step 7., secure each tie running end to the replacement canopy line body by stitching a
3
/16-inch-wide by 2-inch-long double-throw, zig-zag stitch formation toward the connector link
assembly. Finish each stitch formation as close as possible to the securing knots and trim each
running end to ¼-inch. Use size E, nylon thread, and 7 to 11 stitches per inch.

10. Compare the knots securing each end of the replacement canopy line with the adjacent knots made
on the connector link assembly to ensure compatibility. In addition, trace each end of the replacement
line from the connector link assembly to the canopy skirt to ensure proper attachment, position, and
sequence.

11. Sew the anti-inversion net to the new suspension line using a medium-duty zig-zag sewing machine, 5
1
to 8 stitches per inch, and a /8-inch throw. Extend the stitching above and below the net by ½-inch.

END OF WORK PACKAGE

0040 00-2
 TM 10-1670-272-23&P 0041 00

MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY

PREPARATION FOR STORAGE

THIS WORKPACKAGE COVERS:

• Storage Criteria
• General Storage Requirements
• Storage Specifics for Parachutes

INITIAL SETUP:

Personnel Required Equipment Condition

92R(10) Parachute Rigger Unpacked.

STORAGE CRITERIA
Administrative storage of the MC1-1B/MC1-1E Parachute Assembly will be accomplished in accordance
with AR 750-1, and the instructions furnished below.

GENERAL STORAGE REQUIREMENTS

To ensure that serviceability standards of the stored parachute assembly are maintained, every effort will
be exerted to adhere to the following general storage requirements:

1. When available, a heated building should be used to store parachutes.

2. Parachutes will be stored in a dry, well-ventilated location and protected from pilferage, dampness,
fire, dirt, insects, rodents, and direct sunlight.

3. Parachutes will not be stored in a manner which would prevent ventilation or interfere with light
fixtures, heating vents, fire fighting devices, cooling units, exits, or fire doors.

4. Parachutes will not be stored in a damaged, dirty, or damp condition.

5. All stored parachute items will be marked, segregated, and located for accessibility and easy
identification.

6. Parachutes will not be stored in direct contact with any building floor or wall. Storage will be
accomplished using bins, shelves, pallets, racks, or dunnage to provide airspace between the storage
area floor and the equipment. If the pre-constructed shelving or similar storage accommodations are
not available, locally fabricate storage provisions using suitable lumber or wooden boxes.

7. All available material handling equipment should be used as much as possible in the handling of
parachutes.

8. Periodic rotation of stock, conversion of available space, proper housekeeping policies, and strict
adherence to all safety regulations will be practiced at all times.

STORAGE SPECIFICS FOR PARACHUTES

In addition to the storage requirements stipulated in the general storage requirements paragraph, above,
the following is a list of specifics that must be enforced when storing parachutes:

1. Except for those assemblies required for contingency operation, parachutes will not be stored in a
packed configuration.

0041 00-1
 TM 10-1670-272-23&P 0041 00

2. Stored parachute assemblies will be secured from access by unauthorized personnel.

3. A parachute that is in storage, and is administered a cyclic repack and inspection, will not be exposed
to incandescent light or indirect sunlight for a period of more than 36-hours. In addition, exposure to
direct sunlight will be avoided entirely.

END OF WORK PACKAGE

0041 00-2
 TM 10-1670-272-23&P 0042 00

MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY

PREPARATION FOR SHIPMENT

THIS WORKPACKAGE COVERS:

• In-Storage Inspection
• Shipment
• Accordion Folding/Rigger Rolling

INITIAL SETUP:

Personnel Required Equipment Condition

92R(10) Parachute Rigger Unpacked.

IN-STORAGE INSPECTION
General Information. An in-storage inspection is a physical check conducted on a random sample of
airdrop equipment that is located in storage. Authorized rigger personnel (MOS 92R20) will conduct this
inspection.

Intervals. Parachutes in storage will be inspected at least semiannually and at more frequent intervals if
prescribed by the local parachute maintenance officer.

Inspection. Inspect to ensure that the back parachute is ready for issue.

1. Check the back parachute for proper identification.

2. Check that no damage or deterioration has been incurred.

3. Ensure that all modifications, or similar requirements, have been completed.

4. Check the adequacy of the storage facilities, efforts taken to control pests and rodents, and protection
against unfavorable climatic conditions.

SHIPMENT
Initial Shipment. The initial packaging and shipping of parachutes are the responsibility of item
manufacturers, who are required to comply with federal and military packing specifications, as stipulated in
contractual agreements. Parachutes are normally shipped to depot activities, by domestic freight or parcel
post, and packed to comply with overseas shipping requirements. Except for those parachute that are
unpackaged and subjected to random inspections or testing by depot activity, parachutes received by a
using unit will be contained in the original packaging materials.

Shipping Between Maintenance Activities. The shipping of parachutes between activities will be
accomplished on a signature verification basis using whatever means of transportation is available. Used
parachutes and other fabric items will be tagged in accordance with DA PAM 738-751, and rolled, folded,
or placed loosely in a parachute pack, deployment bag, or other suitable container, as required. Unused
parachutes will be transported in original shipping containers. During shipment, every effort will be made
to protect parachute from weather elements, dust, dirt, oil, grease, and acids. Vehicles used to transport
parachutes will be inspected to ensure the items are protected from the previously cited material
damaging conditions.

Other Shipping Instructions. Parachutes destined for domestic or overseas shipment will be packaged
and marked in accordance with AR 700-15, TM 38-230-1, and TM 38-230-2. Shipment of parachutes will
be accomplished in accordance with TM 10-1670-201-23.

0042 00-1
 TM 10-1670-272-23&P 0042 00

ACCORDION FOLDING/RIGGER ROLLING

Accordion Folding. Personnel parachute canopy assemblies that are not packed for use should be
accordion folded prior to entry into storage. To accordion fold a parachute canopy assembly, perform the
following:

1. Place the parachute canopy in proper layout under partial tension and dress the outside edges of both
gore groups.

2. Fold the left group of gores over the right group. Release the tension.

FOLDING OF GORE GROUPS COMPLETED

3. CHAIN the suspension lines and S-fold the chained lines on top of the applicable parachute pack.

SUSPENSION LINES STOWED ON PACK

0042 00-2
 TM 10-1670-272-23&P 0042 00

4. Place the lower end of the canopy on top of the S-folded suspension lines and locate the lower edge
of the canopy skirt at the lower end of the pack.

5. Accordion fold the remaining canopy length neatly on top of the canopy lower end. Turn the canopy
vent under the last fold.

ACCORDION FOLDING THE CANOPY

6. Temporarily secure the folded canopy to the pack tray with available webbing or pack components.

FOLDED CANOPY SECURED

0042 00-3
 TM 10-1670-272-23&P 0042 00

7. Upon completion of the accordion folding process, place the folded parachute assembly in a suitable
type container for storage.

Rigger Rolling. Personnel parachute assemblies will be rigger rolled prior to being sent to, or returned
from, a parachute repair activity, for ease of handling and to prevent suspension line entanglement.
Rigger roll a parachute as follows:

1. Place the parachute in proper layout and apply partial tension.

2. Grasp the right and left suspension line groups. Using a fast circular motion, flip each of the two gore
groups up and to the center radial seam. Tighten each gore group roll by hand; bring both rolled gore
groups together at the center radial seam.

3. Release tension and disconnect the canopy vent from the vent-attaching device.

4. Fold the canopy vent down between the rolled gore groups to a point within 18-inches of the canopy
skirt lower edge.

0042 00-4
 TM 10-1670-272-23&P 0042 00

5. Beginning at the folded upper end of the canopy, roll the canopy tightly toward the canopy skirt.
Ensure the width of the rolled canopy does not exceed the width of the applicable parachute pack tray.

6. Continue rolling the canopy toward the lower end of the suspension lines and risers. If applicable,
locate the lines and riser webbing around the center of the roll.

0042 00-5
 TM 10-1670-272-23&P 0042 00

7. As applicable, disconnect the suspension lines/risers from the attaching device and place the rolled
canopy assembly on top of the pack tray.

8. Secure the rolled canopy assembly within the confines of the pack tray, using either the straps or
webbing of the pack tray, or a length of suitable type cord.

END OF WORK PACKAGE

0042 00-6
 TM 10-1670-272-23&P

CHAPTER 5
SUPPORTING INFORMATION
FOR
MC1-1B TROOP BACK PARACHUTE ASSEMBLY
MC1-1E TROOP BACK PARACHUTE ASSEMBLY
 TM 10-1670-272-23&P 0043 00

SUPPORTING INFORMATION
MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
REFERENCES
THIS WORK PACKAGE COVERS:
· Scope · Technical Bulletins
· Publication Indexes · Forms
· DA PAM · Air Force Technical Orders
· Technical Manuals · Air Force Technical Order Forms
· Field Manuals · Marine Corps Forms
· Army Regulations

SCOPE
This appendix lists all forms, technical manuals, and miscellaneous publications referenced in this
manual.

PUBLICATION INDEXES
The following publication indexes should be consulted frequently for the latest changes or revisions of
references given in this work package, and for new publications relating to the material covered in this
manual:

DA PAM

Consolidated Index of Army Publications and Blank Forms DA PAM 25-30

Functional Users Manual for The Army Maintenance Management System DA PAM 738-750
(TAMMS)

Functional Users Manual for The Army Maintenance Management System DA PAM 738-751
(Aviation) (TAMMSA)

TECHNICAL MANUALS

General Maintenance of Parachutes and Other Airdrop Equipment TM 10-1670-201-23/

T.O. 13C-1-41/
NAVAIR 13-1-17

Ancillary Equipment For: Personnel Troop Parachute System Case, TM 10-1670-299-20&P/T.O.

Parachutists, Individual Weapon, M-1950 14D1-2-470-2/NAVAIR 13-1-41

Preservation, Packaging, Packing of Military Supplies and TM 38-230-1 and

Equipment (Vols. 1 and 2) TM 38-230-2

Equipment Maintenance Forms and Procedures TM 4700-15/1/

Procedures for the Destruction of Air Delivery Equipment to TM 43-0002-1/

Prevent Enemy Use T.O. 13C3-1-10/
NAVAIR 13-1-19

0043 00-1
 TM 10-1670-272-23&P 0043 00

FIELD MANUALS

First Aid for Soldiers FM 4-25.11

ARMY REGULATIONS

Dictionary of United States Army Terms AR 310-25

Authorized Abbreviation and Brevity Codes and Acronyms AR 310-50

Packaging of Material AR 700-15

Army Material Maintenance Concepts and Policy and Retail AR 750-1

Maintenance Operations

Air Drop, Parachute Recovery and Aircraft Personal Escape Systems AR 750-32

TECHNICAL BULLETINS

Maintenance Expenditure Limits for FSC Group 16, FSC Class 1670 TB 43-0002-43

FORMS

Parachute Log Record DA Form 3912

Equipment Inspection & Maintenance Worksheet DA Form 2404

AIR FORCE TECHNICAL ORDERS

Cleaning of Parachute Assemblies T.O. 14D1-1-2

Parachute Logs and Records T.O. DO-25-241

AIR FORCE TECHNICAL ORDER FORMS

Parachute Log AFTO 391

Parachute Repack Inspection and Component Card AFTO 392

0043 00-2
 TM 10-1670-272-23&P 0043 00

MARINE CORPS FORMS

Marine Corps Military Incentive Awards Program MCO 1650.17F

Parachute History Record NAV WPN CEN or NAV

WPNS CL 13512/11

Product Quality Deficiency Report (PQDR) MCO 4855.10B

Recommended Changes to Technical Publications NAVMC 10772

END OF WORK PACKAGE

0043 00-3/(4 Blank)

 TM 10-1670-272-23&P 0044 00

SUPPORTING INFORMATION
MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
MAINTENANCE ALLOCATION CHART (MAC)

THIS WORK PACKAGE COVERS:

• Introduction
• Maintenance Functions
• Explanation of Columns in the MAC
• Explanation of Columns in Tool and Test Equipment Requirements
• Explanation of Column in Remarks

INTRODUCTION

The Army Maintenance System MAC

This introduction provides a general explanation of all maintenance and repair functions authorized at the
two maintenance levels under the Two-Level Maintenance System concept.

The MAC (immediately following the introduction) designates overall authority and responsibility for the
performance of maintenance functions on the identified end item or component. The application of the
maintenance functions to the end item or component shall be consistent with the capacities and
capabilities of the designated maintenance levels, which are shown on the MAC in column (4) as:

Field – includes two columns, Unit maintenance and Direct Support maintenance. The Unit
maintenance column is divided again into two more subcolumns, C for Operator or Crew and O for
Unit maintenance.

Sustainment – includes two subcolumns, General Support (H) and Depot (D).

The tools and test equipment requirements (immediately following the MAC) list the tools and test
equipment (both special tools and common tool sets) required for each maintenance function as
referenced from the MAC.

The remarks (immediately following the tools and test equipment requirements) contain supplemental
instructions and explanatory notes for a particular maintenance function.

Maintenance Functions

Maintenance functions are limited to and defined as follows:

1. Inspect. To determine the serviceability of an item by comparing its physical, mechanical, and/or
electrical characteristics with established standards through examination (e.g., by sight, sound, or
feel.) This includes scheduled inspection and gagings and evaluation of cannon tubes.

2. Test. To verify serviceability by measuring the mechanical, pneumatic, hydraulic, or electrical

characteristics of an item and comparing those characteristics with prescribed standards on a
scheduled basis, i.e., load testing of lift devices and hydrostatic testing of pressure hoses.

3. Service. Operations required periodically to keep an item in proper operating condition, e.g., to
clean (includes decontaminate, when required), to preserve, to drain, to paint, or to replenish fuel,
lubricants, chemical fluids, or gases. This includes scheduled exercising and purging of recoil
mechanisms. The following are examples of service functions:

0044 00-1 Change 2

 TM 10-1670-272-23&P 0044 00

a. Unpack. To remove from packing box for service or when required for the performance of
maintenance operations.

b. Repack. To return item to packing box after service and other maintenance operations.

c. Clean. To rid item of contamination.

d. Touch up. To spot paint scratched or blistered surfaces.

e. Mark. To restore obliterated identification.

4. Adjust. To maintain or regulate, within prescribed limits, by bringing into proper or position, or by
setting the operating characteristics to specified parameters.

5. Align. To adjust specified variable elements of an item to bring about optimum or desired
performance.

6. Calibrate. To determine and cause corrections to be made or to be adjusted on instruments of test,

measuring, and diagnostic equipment used in precision measurement. Consists of comparisons of
two instruments, one of which is a certified standard of known accuracy, to detect and adjust any
discrepancy in the accuracy of the instrument being compared.

7. Remove/Install. To remove and install the same item when required to perform service or other
maintenance functions. Install may be the act of emplacing, seating, or fixing into position a spare,
repair part, or module (component or assembly) in a manner to allow the proper functioning of an
equipment or system.

8. Paint. To prepare and spray color coats of paint so that the ammunition can be identified and
protected. The color indicating primary use is applied, preferably, to the entire exterior surface as
the background color of the item. Other markings are to be repainted as original so as to retain
proper ammunition identification.

9. Replace. To remove an unserviceable item and install a serviceable counterpart in its place.
“Replace” is authorized by the MAC and assigned maintenance level is shown as the third position
code of the Source, Maintenance and Recoverability (SMR) code.

10. Repair. The application of maintenance services, including fault location/troubleshooting,

removal/installation, disassembly/assembly procedures and maintenance actions to identify
troubles and restore serviceability to an item by correcting specific damage, fault, malfunction, or
failure in a part, subassembly, module (component or assembly), end item, or system.

Change 2 0044 00-2

 TM 10-1670-272-23&P 0044 00

NOTE
The following definitions are applicable to the “repair” maintenance function:

Services. Inspect, test, service, adjust, align, calibrate, and/or replace.

Fault location/troubleshooting. The process of investigating and detecting the cause of

equipment malfunctioning; the act of isolating a fault within a system or Unit Under Test
(UUT).

Disassembly/assembly. The step-by-step breakdown (taking apart) of a spare/functional group

coded item to the level of its least component, that is assigned an SMR code for the level of
maintenance under consideration (i.e., identified as maintenance significant).

Actions. Welding, grinding, riveting, straightening, facing, machining, and/or resurfacing.

11. Overhaul. That maintenance effort (service/action) prescribed to restore an item to a completely
serviceable/operational condition as required by maintenance standards in appropriate technical
publications. Overhaul is normally the highest degree of maintenance performed by the Army.
Overhaul does not normally return an item to like new condition.

12. Rebuild. Consists of those services/actions necessary for the restoration of unserviceable
equipment to a like new condition in accordance with original manufacturing standards. Rebuild is
the highest degree of material maintenance applied to Army equipment. The rebuild operation
includes the act of returning to zero those age measurements (e.g., hours/miles) considered in
classifying Army equipment/components.

Explanation of Columns in the MAC

Column (1) Group Number. Column (1) lists Functional Group Code (FGC) numbers, the purpose of which
is to identify maintenance significant components, assemblies, subassemblies, and modules with the Next
Higher Assembly (NHA).

Column (2) Component/Assembly. Column (2) contains the item names of components, assemblies,
subassemblies, and modules for which maintenance is authorized.

Column (3) Maintenance Function. Column (3) lists the functions to be performed on the item listed in
column (2). (For a detailed explanation of these functions refer to “Maintenance Functions” outlined
above).

Column (4) Maintenance Level. Column (4) specifies each level of maintenance authorized to perform
each function listed in column (3), by indicating work time required (expressed as manhours in whole
hours or decimals) in the appropriate subcolumn. This work time figure represents the active time required
to perform that maintenance function at the indicated level of maintenance. If the number or complexity of
the tasks within the listed maintenance function varies at different maintenance levels, appropriate work
time figures are to be shown for each level. The work time figure represents the average time required to
restore an item (assembly, subassembly, component, module, end item, or system) to a serviceable
condition under typical field operating conditions. This time includes preparation time (including any
necessary disassembly/assembly time), troubleshooting/fault location time, and quality assurance time in
addition to the time required to perform the specific tasks identified for the maintenance functions
authorized in the MAC. The symbol designations for the various maintenance levels are as follows:

0044 00-3 Change 2

 TM 10-1670-272-23&P 0044 00

Field:

C Operator or Crew maintenance

O Unit maintenance
F Direct Support maintenance

Sustainment:

L Specialized Repair Activity

H General Support maintenance
D Depot maintenance

NOTE
The “L” maintenance level is not included in column (4) of the MAC. Functions to this level of
maintenance are identified by work time figure in the “H” column of column (4), and an
associated reference code is used in the REMARKS column (6). This code is keyed to the
remarks and the SRA complete repair application is explained there.

Column (5) Tools and Equipment Reference Code. Column (5) specifies, by code, those common tool
sets (not individual tools), common Test, Measurement and Diagnostic Equipment (TMDE), and special
tools, special TMDE and special support equipment required to perform the designated function. Codes
are keyed to the entries in the tools and test equipment table.

Column (6) Remarks Code. When applicable, this column contains a letter code, in alphabetic order,
which is keyed to the remarks table entries.

Explanation of Columns in the Tools and Test Equipment Requirements

Column (1) - Tool or Test Equipment Reference Code. The tool or test equipment reference code
correlates with a code used in column (5) of the MAC.

Column (2) - Maintenance Level. The lowest level of maintenance authorized to use the tool or test
equipment.

Column (3) - Nomenclature. Name or identification of tool or test equipment.

Column (4) - National Stock Number (NSN). The NSN of the tool or test equipment.

Column (5) - Tool Number. The manufacturer’s part number.

Explanation of Columns in Remarks

Column (1) - Remarks Code. The code recorded in Column (6) of the MAC.

Column (2) - Remarks. This column lists information pertinent to the maintenance function being
performed as indicated in the MAC.

Change 2 0044 00-4

 TM 10-1670-272-23&P 0044 00

Table 1. Maintenance Allocation Chart for MC1-1B/MC1-1E Troop Back Parachute Assembly.

(1) (2) (3) (4) (5) (6)

MAINTENANCE LEVEL TOOLS AND

GROUP COMPONENT/ MAINTENANCE EQUIPMENT REMARKS
NUMBER ASSEMBLY FUNCTION FIELD SUSTAINMENT REFERENCE CODE
UNIT
DIRECT GENERAL
DEPOT CODE
SUPPORT SUPPORT
C O F H D
00 MC1-1B/MC1-1E Inspect 1.0 SEE TABLE A, B, C, D,
PARACHUTE Service 1.0 2, IN THIS E, F, G
Test WP.
01 CANOPY Repair 0.5 SEE TABLE A, B, C, E,
Replace 0.3 2, IN THIS F, G
WP
0101 BRIDLE LOOP Repair 0.1
Replace 0.3
0102 VENT CAP Repair 0.1
Replace 1.0
0103 VENT LINE Repair 0.1
Replace 0.5
0104 UPPER Repair 0.4
LATERAL BAND
0105 RADIAL SEAM Repair 0.3
0106 RADIAL TAPE Replace 1.0

0107 GORE SECTION Repair 0.4

Replace 1.0 F

0108 LOWER Repair 0.4

LATERAL BAND
0109 POCKET BAND Repair 0.1
Replace 0.3
0110 V-TAB Repair 0.1
Replace 0.3
0111 ANTI- Inspect 0.1
INVERSION NET Repair 0.3
Replace 0.8
0112 SUSPENSION Repair 0.1
LINE Replace 0.8
0113 CONTROL LINE Repair 0.1
BRIDLE Replace 0.3
0114 CONTROL LINE Repair 0.2
Replace 0.3
0115 CONNECTOR Repair replace 0.2
LINK 0.3
02 RISERS Repair 0.3 SEE TABLE A, C, E, G
Replace 0.2 2, IN THIS
WP
03 DEPLOYMENT Repair 0.5 SEE TABLE B, C, E, G
BAG Replace 0.1 2, IN THIS
WP
0301 REINFORCING Repair 0.2
WEBBING
0302 LOCKING STOW Repair 0.3
LOOP HOOD Replace 0.4
0303 TIE-DOWN Repair 0.3
LOOP Replace 0.3
0304 STANDARD Repair 0.2
STATIC LINE Replace 0.5
ASSEMBLY

0044 00-5 Change 2

 TM 10-1670-272-23&P 0044 00

Table 1. Maintenance Allocation Chart for MC1-1B/MC1-1E Troop Back Parachute Assembly—Continued.

(1) (2) (3) (4) (5) (6)

MAINTENANCE LEVEL TOOLS AND

GROUP COMPONENT/ MAINTENANCE EQUIPMENT REMARKS
NUMBER ASSEMBLY FUNCTION FIELD SUSTAINMENT REFERENCE CODE
UNIT
DIRECT GENERAL
DEPOT
CODE
SUPPORT SUPPORT
C O F H D
0305 STANDARD Replace 0.2
STATIC LINE
EXTENSION

04 UNIVERSAL Replace 0.2

STATIC LINE
05 HARNESS, Repair 0.5 SEE TABLE A, B, C, E,
ASSEMBLY Replace 0.4 2, IN THIS G
WP
0501 RETAINER Replace 0.3
WEBBING
0502 HORIZONTAL Replace 0.3
BACK-STRAP

0503 CANOPY Replace 0.4

RELEASE PAD

0504 CANOPY Replace 0.5

RELEASE
REPAIR
0505 CANOPY Repair 0.2
RELEASE
CABLE LOOP
0506 EJECTOR SNAP Replace 0.4
PAD
06 PACK TRAY Repair 0.5 SEE TABLE B, C, E, G
Replace 0.4 2, IN THIS
WP
0601 BACK-STRAP Replace 0.5
RETAINER
0602 BACK-STRAP Repair 0.5
Replace 0.4

0603 PACK CLOSING Replace 0.2

LOOP
0604 RETAINER Replace 0.3
BAND KEEPER
0605 WAISTBAND Replace 0.4

0606 WAISTBAND Replace 0.4

ADJUSTER
PANEL

Change 2 0044 00-6

 TM 10-1670-272-23&P 0044 00

Table 2. Tools and Test Equipment Requirements for MC1-1B/MC1-1E Troop Back Parachute Assembly.

(1) (2) (3) (4) (5)

TOOLS OR
TEST MAINTENANCE NOMENCLATURE NATIONAL STOCK TOOL NUMBER
EQUIPMENT LEVEL NUMBER
REFERENCE
CODE
1 O Anvil, Chuck Fastener 5120-00-357-6181 9902
2 O Brush, Artist’s 8020-00-246-8502 HB 118
3 O Canopy Release (Repair) Kit 1670-00-925-5615 100860
4 O Chuck 5120-00-343-8214 9765
5 O Cutter, Double Bow, ½-Inch 5110-00-180-0923 GGG-P-833
6 O Cutter, Single Bow, 3/16-Inch 5110-00-180-1941 GGG-P-4333
7 O Die 5120-00-343-8213 9764
8 O File, 1-Inch Flat 5110-00-249-2850 GGG-F-325
9 O Hammer, Ball Peen 5120-00-187-1034 MIL-H-18745
10 O Holder, Die, Fastener 5120-00-357-6177 192
11 O Key, Socket Head Set (Allen Type) 5120-00-729-6392 GGG-K-275
12 O Kit, Bag 8460-00-606-8366 MIL-K-41835
13 O Knife 5110-00-162-2205 MIL-K-818
14 O Knife, Hot Metal 3439-01-197-7656 4025 (78976)
15 O Lead, Pig, 5-Pounds 9650-00-264-5050 QQ-C-40
16 O Line Separator 1670-00-092-8661 11-1-3512
17 O Mallet, Rawhide 5120-00-293-3397 666-H-33
18 O Needle, Basting 8315-00-281-9484 FF-N-180
19 O Needle, Tacking 8315-00-262-3733 FF-N-180
20 O Packing Paddle 1670-00-764-6381 11-1-152
21 O Packing Weight 1670-00-375-9134 66C38599
22 O Plate, Tension 1570-00-032-2705 11-1-99
23 O Pliers, Needle Nose 5120-01-021-7473
24 O Pot, Melting Electric 5120-00-242-1276 W6441
25 O Press, Hand Operated 5120-00-880-0619 A741
26 O Screwdriver, Flat-tip, ¼ X 6 5120-00-596-8653 GGG-S-121
27 O Separator, Connector Link 1670-00-072-4941 MILS 43243
28 O Shears 5110-00-223-6370 GGG-S-278
29 O Stow Hook 1670-00-903-4570 11-1-343
30 O Tester, Spring, 0 TO 80-lbs. (Scale) 6635-00-705-5469 800
31 O Tool Kit, Canopy Release 1670-01-319-6969 6038 (71304)

Table 3. Remarks for MC1-1B/MC1-1E Troop Back Parachute Assembly.

(1) (2)
REMARKS REMARKS
CODE
A During the final year of personnel canopy age life only the organizational level maintenance is authorized by TB
43-0002-43.
B Inspect is a technical-rigger type inspection; other inspections in WP 0009 00 and 0010 00.
C Service includes cleaning and drying, shakeout and airing of equipment and packing.
D Service is the packing of parachutes.
E Repair by restitching, darning, retacking, or restencilling the canopy panel. Repair at unit maintenance level
consists of darning, restitching, patching and the replacement of parts authorized for unit maintenance.
F Direct support repair consists of replacing gore sections, suspension lies, vent cap, and vent lines.
G Test all fabrics and webbing material for salt-water contamination.

END OF WORK PACKAGE

0044 00-7/(8 Blank) Change 2

 TM 10-1670-272-23&P 0045 00
MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
REPAIR PARTS AND SPECIAL TOOLS LIST (RPSTL), INTRODUCTION

SCOPE
This RPSTL lists and authorizes spare and repair parts; special tools; special test, measurement, and
diagnostic equipment (TMDE); and other special support equipment required for performance of
organizational, unit, direct and general support maintenance of the 35-Foot Diameter, MC1-1B/MC1-1E Troop
Back Parachute. It authorizes the requisitioning, issue, and disposition of spares, repair parts and special
tools as indicated by the Source, Maintenance, and Recoverability (SMR) codes.

GENERAL INFORMATION
This RPSTL is divided into the following sections:

Repair Parts List. A list of spares and repair parts authorized by this RPSTL for use in the performance of
maintenance. The list also includes parts that must be removed for replacement of the authorized parts.
Parts lists are composed of functional groups in ascending alphanumeric sequence, with the parts in each
group listed in ascending figure, and item, number sequence. Bulk materials are listed.

Special Tools Lists. (Not Applicable) No special tools are required to assemble the MC1-1B/MC1-1E, 35-
foot diameter parachute. Common tools are listed in WP 0044 00, because they are required for performance
of packing and maintenance procedures/tasks. These tools are authorized according to common Tools and
Equipment, WP 0001 00, of this manual.

Cross-Reference Indexes. A list, in National Item Identification Number (NIIN) sequence, of all National
Stock Numbers (NSNs) appearing in the listing, followed by a list in alphanumeric sequence of all part
numbers appearing in the listings. National stock numbers and part numbers are cross-referenced to each
illustration figure and item number appearance.

EXPLANATION OF COLUMNS IN THE REPAIR PARTS AND SPECIAL TOOLS LIST

Column 1, Item No. Indicates the number used to identify items called out in the illustration.

Column 2, SMR Code. The Source, Maintenance, and Recoverability (SMR) code is a 5-position code
containing supply/requisitioning information, maintenance category authorization criteria, and disposition, as
shown in the following breakout:

*Complete Repair Maintenance: Maintenance capacity, capability, and authorization to perform all corrective
maintenance tasks of the “Repair” function in a use/user environment in order to restore serviceability to a
failed item.

0045 00-1 Change 1

 TM 10-1670-272-23&P 0045 00

Source Code. The source code tells you how to get an item needed for maintenance, repair, or overhaul of
an end item/equipment. Source codes are always the first and second positions of the SMR code.
Explanations of source codes follow:

SOURCE CODE EXPLANATION

PA
PB
Stocked items: Use the applicable NSN to request/
PC
requisition items with these source codes. They are
PD
authorized to the category indicated by the code
PE rd
entered in the 3 position of the SMR code.
PF
PG

Items with these codes are not to be requested/

KD requisitioned individually. They are part of a kit which
KF is authorized to the maintenance category indicated in
rd
KF the 3 position of the SMR code. The complete kit
must be requisitioned and applied.

Items with these codes are not to be

requested/requisitioned individually. They must be
made from bulk material which is identified by the part
MO – (Made at org/AVUM Level)
number in the DESCRIPTION and USABLE ON
MF – (Made at DS/AVUM Level)
CODE (UOC) column and listed in the Bulk Material
MH – (Made at GS Level)
group of the repair parts list in the RPSTL. If the item
ML – (Made at Specialized Repair Act (SRA)) rd
is authorized to you by the 3 position code of the
MD – (Made at Depot)
SMR code, but the source code indicates it is made at
a higher level, order the item from the higher level of
maintenance.

Items with these codes are not to be

requested/requisitioned individually. The parts that
AO – (Assembled by org/AVUM Level) make up the assembled item must be requisitioned or
AF – (Assembled by DS/AVIM Level) fabricated and assembled at the level of maintenance
rd
AH – (Assembled by GS Category) indicated by the source code. If the 3 position code
AL – (Assembled by SRA) of the SMR code authorizes you to replace the item,
AD – (Assembled by Depot) but the source code indicates the item is assembled
at a higher level, order the item from the higher level
of maintenance.

Do not requisition an XA-coded item. Order its next

XA -
higher assembly. (Also, refer to the NOTE below.)

If and XB-coded item is not available from salvage,

XB -
order it using the CAGEC and the given part number.

The installation drawing, diagram, instruction sheet,

XC - and field service drawing that is identified by
manufacturer’s part number.

Item is not stocked. Order an XD-coded item through

XD - normal supply channels using the CAGEC and the
part number given, if no NSN is available.

Change 1 0045 00-2

 TM 10-1670-272-23&P 0045 00

NOTE

Cannibalization or controlled exchanged, when authorized, may be used

as a source of supply for items with the above source codes, except for
those source coded XA or those aircraft support item restricted by
requirements of AR 750-1.

Maintenance Code. Maintenance codes tell you the level(s) of maintenance authorized to USE and
REPAIR support items. The maintenance codes are entered in the third and fourth positions of the SMR
Code as follow:

Third position. The maintenance code entered in the third position tells you the lowest
maintenance level authorized to remove, replace, and use an item. The maintenance code entered
in the third position will indicate authorization to one of the following levels of maintenance.

MAINTENANCE CODE APPLICATION/EXPLANATION

Crew or operator maintenance done within

C-
organizational or aviation unit maintenance.
Organizational or aviation unit category can
O-
remove, replace, and use the item.
Direct support or aviation intermediate level can
F-
remove, replace, and use the item.
General Support level can remove, replace, and
H-
use the item.
Specialized repair activity can remove, replace,
L-
and use the item.
Depot level can remove, replace, and use the
D-
item.

Fourth position. The maintenance code entered in the fourth position tells whether or not the item
is to be repaired and identifies the lowest maintenance level with the capability to do complete
repair (i.e., perform all authorized repair functions.) Some limited repair may be done on the item
at a lower level of maintenance, if authorized by the Maintenance Allocation Chart (MAC) and SMR
code. This position will contain one of the following maintenance codes.

MAINTENANCE CODE APPLICATION/EXPLANATION

Organizational (or aviation unit) is the lowest level

O-
that can do complete repair of the item.

Direct support (or aviation intermediate) is the

F- lowest level that can do complete repair of the
item.

0045 00-3 Change 1

 TM 10-1670-272-23&P 0045 00

MAINTENANCE CODE - Continued APPLICATION/ EXPLANATION - Continued

General support is the lowest level that can do

H-
complete repair of the item.
Specialized repair activity (designate the
L- specialized repair activity) is the lowest level that
can do complete repair of the item.
Depot is the lowest level that can do complete
D-
repair of the item.

Z- Non-repairable. No repair is authorized.

No repair is authorized. (No parts or special tools

are authorized for the maintenance of a B-coded
B-
item.) However, the item may be reconditioned by
adjusting, lubricating, etc., at the user level.

Recoverability code. Recoverability codes are assigned to items to indicate the disposition action on
unserviceable items. The recoverability code is entered in the fifth position of the SMR code as follows:

RECOVERABILITY CODE APPLICATION/EXPLANATION

Non-repairable item. When unserviceable,

condemn and dispose of the item at the level of
Z-
maintenance shown in the 3rd position of the
SMR Code.

Repairable item. When uneconomically

O- reparable, condemn and dispose of the item at
organizational or aviation unit level.

Repairable item. When uneconomically

F- repairable, condemn and dispose of the item at
the direct support or aviation intermediate level.

Repairable item. When uneconomically

H- repairable, condemn and dispose of the item at
the general support level.

Repairable item. When beyond the lower level

repair capability, return to depot. Condemnation
and disposal of item not authorized below depot
D-
level.

Change 1 0045 00-4

 TM 10-1670-272-23&P 0045 00

RECOVERABILITY CODE - Continued APPLICATION/EXPLANATION - Continued

Repairable item. Condemnation and disposal

L- not authorized below Specialized Repair Activity
(SRA).

Item requires special handling or condemnation

procedures because of specific reasons (e.g.,
precious metal content, high dollar value, critical
A-
material or hazardous material). Refer to
appropriate manuals/directives for specific
instructions.

Column 3, CAGE Code. The Commercial and Government Entity Code (CAGEC) is a 5-digit numeric code
that is used to identify the manufacturer, distributor, or Government agency, that supplies the item.

Column 4, Part Number. Indicates the primary number used by the manufacturer (individual, company, firm,
corporation, or Government activity), which controls the design and characteristics of the item by means of its
engineering drawings, specifications, standards, and inspection requirements to identify an item or range of
items.

NOTE

When you use an NSN to requisition an item, the item you receive may
have a different part number from the part ordered.

Column 5, Description and Usable on Code (UOC). This column includes the following information:

1. The Federal item name and, when repaired, a minimum description to identify the item.

2. The physical security classification of the item is indicated by the parenthetical entry, (insert applicable
physical security classification abbreviation, e.g., Phy Sec CI (C) – Confidential, Phy Sec CI (S) Secret,
Phy Sec CI (T) – Top Secret.

3. Items that are included in kits and sets are listed below the name of the kit or set.

4. Spare/repair parts that make up an assembled item are listed immediately following the assembled item
line entry.

5. Part numbers for bulk materials are referenced in this column in the line item entry for the item to be
manufactured/fabricated.

6. When the item is not used will all serial numbers of the same model, the effective serial numbers are
shown on the last line(s) of the description (before UOC).

7. The usable on code, when applicable (see the SPECIAL INFORMATION paragraph below).

0045 00-5 Change 1

 TM 10-1670-272-23&P 0045 00

8. In the Special Tools List section, the basis of issue (BOI) appears as the last line(s) in the entry for each
special tool, special TMDE, and other special support equipment. When density of equipment supported
exceeds density spread indicated in the BOI, the total authorization is increased proportionately.

9. The statement END OF FIGURE appears just below the last item description in Column 5 for a given
figure.

Column 6, QTY. The QTY (quantity per figure column) indicates the quantity of the item used in the breakout
shown on the illustration figure, which is prepared for a functional group, sub functional group, or an
assembly. A “V” appearing in the column, in lieu of a quantity, indicates that the quantity is variable and may
vary from application to application.

SPECIAL INFORMATION
The Usable on Code title appears in the lower right corner of column (5), Description. Usable on codes are
shown in the right-hand margin of the description column. Identification of the usable on codes used in the
RPSTL are:

Code: Used on:

DWD 1670-00-598-0751
FSZ 1670-01-499-6573

Bulk materials required to manufacture items are listed in the Bulk Material group of this manual. NSNs for
bulk materials are also referenced in the description column of the line item entry for the item to be
manufactured/fabricated. Detailed manufacturing instructions for items source coded to be manufactured or
fabricated are found in this manual.

Detailed assembly instructions for items source coded to be assembled from component spare/repair parts
are found in this manual. Items that make up the assembly are listed immediately following the assembled
item entry.

Line item entries for repair part kits and sets appear as the last entries in the repair part listing for the figure in
which their parts are listed as repair parts.

Items that have the word Bulk in the figure number column will have an index number shown in the item
number column. This index number is furnished for use as a cross-reference between the National Stock
Number/Part Number Index and the bulk material list.

In the repair parts list, some items are indented to show that they are components of the item under which
they are indented.

Change 1 0045 00-6

 TM 10-1670-272-23&P 0045 00

EXPLANATION OF COLUMNS
National Stock Number (NSN) Index.

1. Stock number column. This column lists the NSN by National Item Identification Number (NIIN)
sequence. The NIIN consists of the last nine digits of the NSN, i.e.

NSN

5305-01-574-1467

NIIN

When using this column to locate an item, ignore the first 4 digits of the NSN. However, the complete
NSN should be used when ordering items by stock number.

2. Fig. column. This column lists the number of the figure where the item is identified/located.

3. Item column. The item number identifies the item associated with the figure listed in the adjacent Fig.
column. This item is also identified by the NSN listed on the same line.

Part Number Index. Part numbers in this index are listed by part number in ascending alphanumeric
sequence (i.e., vertical arrangement of letter and number combination which places the first letter or digit of
each group in order A through Z, followed by the numbers 0 through 9, and each following letter or digit in like
order).

1. CAGEC column. The Commercial and Government Entity Code is a 5-digit numeric code used to identify
the manufacturer, distributor, or Government agency, etc., that supplies the item.

2. Part number column. Indicates the primary number used by the manufacturer (individual, firm,
corporation, or Government activity), that controls the design and characteristics of the item by means of
its engineering drawings, specifications, standards, and inspection requirements to identify an item or
range of items.

3. Stock number column. This column lists the NSN for the associated part number and manufacturer
identified in the part number and CAGEC columns to the left.

4. Fig. column. This column lists the number of the figure where the item is identified/located.

5. Item column. The item number is that number assigned to the item as it appears in the figure referenced
in the adjacent figure number column.

HOW TO LOCATE REPAIR PARTS

When National Stock Number or Part Number is Not Known.

1. First. Using the table of contents, determine the functional group or sub-functional group to which the
item belongs. This is necessary since the figures are prepared for functional groups and sub-functional
groups, and listings are divided into the same groups.

2. Second. Find the item on the figure covering the functional group or sub-functional group to which the
item belongs.

3. Third. Identify the item on the figure and note the item number of the item.

0045 00-7 Change 1

 TM 10-1670-272-23&P 0045 00

4. Fourth. Refer to the Repair Parts List for the figure to find the line item entry for the item number noted
on the figure.

When National Stock Number or Part Number is Known.

1. First. Using the Index of National Stock Numbers and Part Numbers, find the pertinent National Stock
Number or part number. The NSN index is in the National Item Identification Number (NIIN) *sequence.
The part numbers in the Part Number index are listed in ascending alphanumeric sequence. Both
indexes cross-reference you to the illustration figure and item number of the item you are looking for.

NSN

5305-01-574-1467

NIIN

*The NIIN consists of the last 9 digits of the NSN, as shown above.

2. Second. After finding the figure and item number, verify that the item is the one you’re looking for, then
locate the item number in the repair parts list for the figure.

END OF WORK PACKAGE

Change 1 0045 00-8

 TM 10-1670-272-23&P 0046 00

GROUP 00 MC1-1B/MC1-1E TROOP BACK PERSONNEL PARACHUTE

2
5

Figure 1. MC1-1B/MC1-1E Troop Back Personnel Parachute.

Change 1 0046 00-(1 Blank)/2

 TM 10-1670-272-23&P 0046 00

GROUP 00 MC1-1B/MC1-1E TROOP BACK PERSONNEL PARACHUTE

REPAIR PARTS LIST

(5)
(1)
(2) (3) (4) DESCRIPTION AND (6)
ITEM
SMR CODE CAGEC PART NO. USABLE ON CODES QTY
NO.
(UOC)

Group 00, MC1-1B/MC1-1E Troop Back Personnel Parachute

Figure 1, MC1-1B/MC1-1E, Troop Back Personnel Parachute, 11-1-900-1/11-1-900-4

Bag, Deployment, Standard

1 PAOOO 98750 56D6276 1
UOC: DWD/FSZ

Bag, Deployment, USL

2 PAOOO 81337 11-1-6994-1 1
UOC: DWD/FSZ

Line, Static, USL

3 PAOZZ 81337 11-1-6993-1 1
UOC: DWD/FSZ

Line, Static, USL Ext

4 PAOZZ 81337 11-1-6993-2 1
UOC: DWD/FSZ

Snaphook, USL
5 PAOZZ 81337 11-1-6991-1 1
UOC: DWD/FSZ
Canopy, 35-FT., W/ Net
and Orifice, MC1-1B/
6 PAOFF 81337 11-1-1501-1 1
MC1-1E
UOC: DWD/FSZ
Pack, Personnel Parachute
7 PAOOO 81337 62J4342 1
UOC: DWD/FSZ

Harness, Personnel
8 PCOOO 81337 11-1-2143-1 1
UOC: DWD/FSZ

Riser Extension
9 PAOOO 81337 11-1-2149-1 2
UOC: DWD/FSZ

END OF FIGURE

0046 00-3/(4 Blank) Change 1

 TM 10-1670-272-23&P 0047 00

GROUP 01 MC1-1B/MC1-1E PERSONNEL, CANOPY W/NET AND ORIFICE

6 7 8
5

1 9
4

13 12 11 10
3

Detail C
Detail A Detail B

14
15
24

23

Detail D 16

17

Detail E
E

18

D
C

A 19
22

Detail F

20
21

21

Figure 2. Personnel, Canopy W/Net and Orifice MC1-1B/MC1-1E

Change 1 0047 00-(1 Blank)/2

 TM 10-1670-272-23&P 0047 00

GROUP 01 MC1-1B/MC1-1E PERSONNEL, CANOPY W/NET AND ORIFICE

REPAIR PARTS LIST

(5)
(1)
(2) (3) (4) DESCRIPTION AND (6)
ITEM
SMR CODE CAGEC PART NO. USABLE ON CODES QTY
NO.
(UOC)

Group 01, MC1-1B/MC1-1E Personnel Canopy W/ Net and Orifice

Figure 2, MC1-1B/MC1-1E Personnel Canopy W/ Net and Orifice, 11-1-1501-1/11-1-900-4

1 MOOOO 98750 68K147-21 Control Line Bridle, Make 2

From P/N PIA-C-5040,
Type II, Thread Nylon, V-T-
295, Type I, CL A, OD, Size
E, UOC: DWD/FSZ

2 PAOZZ 96906 PS27762-1 Reefing Ring, Parachute, 2

UOC: DWD/FSZ

3 MOOOO 98750 68K147-20 Control Line, Make From 2

Cord, Nylon, P/N PIA-C-
5040, Type II, OG
UOC: DWD/FSZ

58536 A-A-1975
Toggle, (Dowel, Hardwood)
4 PAOZZ 2
UOC: DWD/FSZ

5 MFFOF 81337 11-1-2674-1 Gore, Make From Cloth, 30

P/N PIA-C-7020, Type I,
OD 36-IN. Wide, Thread
Nylon, P/N V-T-295, Type I,
CL A, Size E, Natural,
UOC: DWD/FSZ

6 MFFOF 81337 11-1-2674-2 Gore Section, Make From 30

Cloth, Nylon, PIA-C-7020,
Type I, OD 48-IN. Wide,
Thread Nylon, P/N V-T-295,
Type I, CL A, Size E,
Natural
UOC: DWD/FSZ

7 MFFOF 81337 11-1-2674-3 Gore Section, Make From 30

Cloth, Nylon, P/N PIA-C-
7020, Type I, OD, 48-IN.
Wide, Thread Nylon, P/N V-
T-295, Type I, CL A, Size
E, Natural, UOC: DWD/FSZ

0047 00-3 Change 1

 TM 10-1670-272-23&P 0047 00

GROUP 01 MC1-1B/MC1-1E PERSONNEL, CANOPY W/NET AND ORIFICE

REPAIR PARTS LIST

(5)
(1)
(2) (3) (4) DESCRIPTION AND (6)
ITEM
SMR CODE CAGEC PART NO. USABLE ON CODES QTY
NO.
(UOC)

8 MFFOF 81337 11-1-2674-4 Gore Section, Make From 30

Cloth, Nylon, P/N PIA-C-
7020, Type I, OD, 48-IN.
Wide, Thread Nylon, P/N V-
5-295, Type I, CL A, Size E,
Natural, UOC: DWD/FSZ

9 MFFOF 98750 58H6361-1 Gore, Make From Cloth, 30

P/N PIA-C-7020, Type I,
OD, 36-IN. Wide, Thread
Nylon, P/N V-T-295, Type I,
CL A, Size E, Natural
UOC: DWD/FSZ

10 MFFOF 98750 58H6361-2 Gore, Make From Cloth, 30

P/N PIA-C-7020, Type I,
OD, 36-IN. Wide,Thread
Nylon, P/N V-T-295, Type I,
CL A, Size E, Natural
UOC: DWD/FSZ

11 MFFOF 98750 58H6361-3 Gore, Make From Cloth, 30

P/N PIA-C-7020, Type I,
OD, 36-IN. Wide, Thread
Nylon, P/N V-T-295, Type I,
CL A, Size E, Natural
UOC: DWD/FSZ

12 MFFOF 98750 58H6361-4 Gore, Make From Cloth, 30

P/N PIA-C-7020, Type I,
OD 36-IN. Wide, Thread
Nylon, P/N V-T-295, Type I,
CL A, Size E, Natural,
UOC: DWD/FSZ

13 MFFOF 98750 58H6361-5 Gore, Make From Cloth, 30

P/N PIA-C-7020, Type I,
OD, 36-IN. Wide, Thread
Nylon, P/N V-T-295, Type I,
CL A, Size E, Natural,
UOC: DWD/FSZ

Change 1 0047 00-4

 TM 10-1670-272-23&P 0047 00

GROUP 01 MC1-1B/MC1-1E PERSONNEL, CANOPY W/NET AND ORIFICE

REPAIR PARTS LIST

(5)
(1)
(2) (3) (4) DESCRIPTION AND (6)
ITEM
SMR CODE CAGEC PART NO. USABLE ON CODES QTY
NO.
(UOC)

14 MOOOO 98750 68K147 Lower Lateral Band, Make 1

From Tape, P/N PIA-T-
1001, Type I, OG 1-in.-
wide, Thread Nylon, P/N V-
T-295, Type I, CL A,
Natural, UOC: DWD/FSZ

15 MOOOO 98750 68K147-22 Pocket Band, Make From 15

Tape, P/N MIL-T-6134,
Type I, OG 1-IN. Wide,
Thread Nylon, P/N V-T-295,
Type I, CL A, Natural
UOC: DWD/FSZ

16 MOOOO 98750 68K147-19 V-Tab, Make From 30

Webbing, Nylon, P/N MIL-
W-4088, Type I, 9/16-IN.
Wide, Thread Nylon, P/N V-
T-295, Type I, CL A, Size
E, Natural, UOC: DWD/FSZ

17 MFFFF 98750 68K147-18 Suspension Line, Make 30

From Cord, P/N PIA-C-
5040, Type I, OD, Thread
Nylon, P/N V-T-295, Type I,
CL A, Size E, Natural,
UOC: DWD/FSZ

18 MFFFF 81337 61B4452 Vent Cap, Make From Cloth

Nylon, P/N MIL-C-7020,
Type 1, OG, Tape Nylon,
P/N MIL-T-5038, Type 3,
Sage Green, 1½-IN. Wide,
Thread Nylon, V-T-295,
Type 12, CLA Natural Size
E, UOC: DWD/FSZ

0047 00-5 Change 1

 TM 10-1670-272-23&P 0047 00

GROUP 01 MC1-1B/MC1-1E PERSONNEL, CANOPY W/NET AND ORIFICE

REPAIR PARTS LIST

(5)
(1)
(2) (3) (4) DESCRIPTION AND (6)
ITEM
SMR CODE CAGEC PART NO. USABLE ON CODES QTY
NO.
(UOC)

19 MOOOO 98750 68K147 Upper Lateral Band, Make 1

From Webbing, P/N PIA-W-
5625, 1-IN. Wide, Green
Thread, Nylon, P/N V-T-
295, Type I, CL A, Size E,
Natural, UOC: DWD/FSZ

20 PAOZZ 96906 PS22002-1 Link, Parachute 4

UOC: DWD/FSZ

8
21 PAOZZ 96906 PS22002-3 Screw
UOC: DWD/FSZ

22 PAOZZ 81349 MIL-C-43805 Cloth, Netting YD

UOC: DWD/FSZ

23 MFFFF 98750 68K147-15 Vent Line, Make From 15

Cord, P/N PIA-C-5040,
Type II, OG Thread, Nylon,
P/N V-T-295, Type I, CL A,
Size E, Natural
UOC: DWD/FSZ

24 MOOZZ 98750 68K147-17 Bridle Loop, Make From 1

Webbing, Nylon, P/N PIA-
W-4088 Type VIII, OD
Thread, Nylon P/N V-T-295
Type I CL A Size 6, Natural,
UOC: DWD/FSZ

END OF FIGURE

Change 1 0047 00-6

 TM 10-1670-272-23&P 0048 00
GROUP 02 RISER EXTENSION

Figure 3. Riser Extension

Change 1 0048 00-(1Blank)/2

 TM 10-1670-272-23&P 0048 00
GROUP 02 RISER EXTENSION
REPAIR PARTS LIST

(1) (5)
(2) (3) (4) (6)
ITEM DESCRIPTION AND
SMR CODE CAGEC PART NO. QTY
NO. USABLE ON CODES (UOC)

Group 02, Riser Extension

Figure 3, Riser Extension, 11-1-2149-1

1 MOOOO 81337 11-1-2149 Control Line Channel, Make 4

From Tape, Nylon, P/N PIA-
T-5038, Type III, 1½-IN.
Wide, OD, Thread, Nylon,
P/N V-T-295, Type I, CL A,
OD, Size E
UOC: DWD/FSZ

2 MOOOO 81337 11-1-2149 Guide Ring Retainer G

Strap, Make From Webbing,
Nylon, P/N PIA-W-4088,
Type I, CL I, OD 7, Thread,
Nylon, P/N V-T-295, Type I,
CL A, OD, Size E
UOC: DWD/FSZ

3 PAOZZ 96906 PS27762-1 Ring Reefing Parachute, 2

UOC: DWD/FSZ

4 MOOOO 81337 11-1-2149 Log Record Pocket, Make 1

From Cloth, Nylon, P/N MIL-
C-7219 TY III OG 106,
Thread Nylon, P/N V-T-295,
TY I CL A OD, Size E
UOC: DWD/FSZ

END OF FIGURE

0048 00-3/(4 Blank) Change 1

 TM 10-1670-272-23&P 0049 00

GROUP 03 STANDARD DEPLOYMENT BAG

2
4

Figure 4. Standard Deployment Bag

Change 1 0049 00-(1 Blank)/2

 TM 10-1670-272-23&P 0049 00

GROUP 03 STANDARD DEPLOYMENT BAG

REPAIR PARTS LIST

(5)
(1)
(2) (3) (4) DESCRIPTION AND (6)
ITEM
SMR CODE CAGEC PART NO. USABLE ON CODES QTY
NO.
(UOC)

Group 03, Deployment Bag

Figure 4, Deployment Bag, 56D6276

1 PAOZZ 98750 55D6481-20 Static Line, Standard,

1
Personnel Parachute
UOC: DWD/FSZ

2 MOOOO 98750 55D6481-5 Lanyard, Make From Cord

Nylon, P/N PIA-C-5040 OG 1
Type III
UOC: DWD/FSZ

3 MOOZZ 98750 55B6261 Safety Pin, Make From

Wire Steel, P/N QQ-W-423,
Composition 430 CO, Type 1
II, OG
UOC: DWD/FSZ

4 PAOZZ 96906 PS70120 Snap Hook, Standard, 1

UOC: DWD/FSZ

5 MOOZZ 81337 11-1-2594-18 Tie-down Loop, Make From

Webbing Nylon, P/N PIA-
W-4088 Type I, 9/1 6-in.
2
Wide, Thread Nylon, P/N V-
T-295, Type I, CL A, Size E,
Natural
UOC: DWD/FSZ

6 MOOZZ 81337 11-1-2594-5 Locking Stow Loop Hood,

Make From Cloth Sateen,
P/N MIL-C-10296, Class 1
OG Thread, P/N V-T-295 2
Type I, CL A, Size E,
Natural
UOC: DWD/FSZ

END OF FIGURE

0049 00-3/(4 Blank) Change 1

 TM 10-1670-272-23&P 0050 00

GROUP 04 UNIVERSAL STATIC LINE

3
6

Figure 5. Universal Static Line

Change 1 0050 00-(1 Blank)/2

 TM 10-1670-272-23&P 0050 00

GROUP 04 UNIVERSAL STATIC LINE

REPAIR PARTS LIST

(5)
(1)
(2) (3) (4) DESCRIPTION AND (6)
ITEM
SMR CODE CAGEC PART NO. USABLE ON CODES QTY
NO.
(UOC)

Group 04, Universal Static Line

Figure 5, Universal Static Line, 11-1-6994-1

1 PAOZZ 81337 11-1-6993-1 Line, Static, USL 1

UOC: DWD/FSZ

2 PAOZZ 81337 11-1-6993-2 Line, Static, USL Ext 1

UOC: DWD/FSZ

3 PAOZZ 81337 11-1-6991-1 Snap Hook, USL 1

UOC: DWD/FSZ

4 MOOZZ 81337 11-1-2594-18 Tie-down Loop, Make From 2

Webbing Nylon, P/N PIA-
W-4088 Type I, 9/16-IN.
Wide, Thread Nylon, P/N V-
T-295 TY I CL A, Size E,
Natural
UOC: DWD/FSZ

5 MOOZZ 81337 11-1-2594-5 Locking Stow Loop Hood, 2

Make From Cloth Sateen,
P/N MIL-C-10296, Class 1
OG Thread, P/N V-T-295
TY I CL A, Size E, Natural,
UOC: DWD/FSZ

6 PAOOO 81337 11-1-6994-1 Bag, Deployment, USL 1

UOC: DWD/FSZ

END OF FIGURE

0050 00-3/(4 Blank) Change 1

 TM 10-1670-272-23&P 0051 00

GROUP 05 PERSONNEL PARACHUTE HARNESS

Figure 6. Personnel Harness

Change 1 0051 00-(1 Blank)/2

 TM 10-1670-272-23&P 0051 00

GROUP 05 PERSONNEL PARACHUTE HARNESS

REPAIR PARTS LIST

(1) (5)
(2) (3) (4) (6)
ITEM DESCRIPTION AND USABLE
SMR CODE CAGEC PART NO. QTY
NO. ON CODES (UOC)

Group 05, Harness, Personnel Parachute

Figure 6, Personnel Harness, 11-1-2143-1

1 MOOOO 98750 62C4319 Canopy Release Pad, Make From 2

Cloth Nylon, Type III, CL 3, OG
106, P/N MIL-C-7219, Rubber
Cellular ½-in. Thick, Type II,
Grade A CL Soft, P/N MIL-R-
5001, Thread Nylon, P/N V-T-295,
Type I, CL A OG, Size E,
Webbing Nylon, Type I, 9/16-in.
Wide, P/N PIA-W-4088, Tape,
Lacing and Tying, P/N A-A-520-
80-B-3
UOC: DWD/FSZ

2 MOOOO 98750 61B4384 Retainer Webbing, Make From 5

Webbing, Nylon, P/N PIA-W-
5664, Type I, OG 1-in. Wide,
Thread Nylon, P/N V-T-295, Type
I, CL A, OG, Size E
UOC: DWD/FSZ

3 MOOOO 81337 11-1-2143 Horizontal Back-strap, Make From 1

Webbing, Nylon P/N PIA-W-4088,
Type III, CL R, Thread, Nylon P/N
V-T-295 Type I, CL A OG, Size 6
UOC: DWD/FSZ

4 MOOOO 81337 11-1-2144-26 Ejector Snap Pad, Make From 3

Cloth Nylon, Type III, CL 3, OG
106, P/N MIL-C-7219, Felt Type I,
3
/16-in. Thick, P/N C-F-106, Tape
OD Nylon, Type III, 1-in. Wide,
P/N PIA-T-5038, Thread Nylon,
P/N V-T-295, Type I, CL A OG,
Size E, Tape, Lacing and Tying,
P/N A-A-520-80-B-3
UOC: DWD/FSZ

END OF FIGURE

0051 00-3/(4Blank) Change 1

 TM 10-1670-272-23&P 0052 00

GROUP 06 PERSONNEL PARACHUTE PACK TRAY

3
1

5 4

Figure 7. Personnel Parachute Pack Tray

Change 1 0052 00-(1 Blank)/2

 TM 10-1670-272-23&P 0052 00

GROUP 06 PERSONNEL PARACHUTE PACK TRAY

REPAIR PARTS LIST

(1) (5)
(2) (3) (4) (6)
ITEM DESCRIPTION AND USABLE
SMR CODE CAGEC PART NO. QTY
NO. ON CODES (UOC)

Group 06 Pack Tray, Personnel Parachute

Figure 7, Personnel Parachute Pack Tray, 62J4342

1 MOOOO 81349 PIA-T-5038 Retaining Band, Keeper, Make

From Webbing, Nylon P/N PIA-T-
5038, TY IV, Class 2, 1-IN. Wide,
Green, Thread Nylon, P/N V-T-
295, Type 1, Class A OD, Size E
UOC: DWD/FSZ

2 MOOOO 98750 62J4342-15 Pack Closing Loop, Make From 4

Webbing Nylon, P/N PIA-W-4038,
Type III, CL 1 and OD CL R, MIL-
W-27265 OD 7, Thread Nylon V-
T-295, Type I, CL A OD, Size E,
UOC: DWD/FSZ

3 MOOOO 98750 62J4342-4 Retaining Band, Keeper Long,

Make From Webbing Nylon, P/N
PIA-W-4088, TY XVII, CL I, OD 7,
Thread Nylon, P/N V-T-295, Type
I, CL A OD, Size E
UOC: DWD/FSZ

4 XDOOO 98750 62J4342-24 Waistband Adjuster Panel 1

UOC: DWD/FSZ

5 MOOOO 98750 62J4342-4 Back Strap Keeper, Make From 2

Webbing Nylon, P/N PIA-W-4088,
Type XVII, CL 1 and CL R, MIL-
W-27265, OD 7, Thread Nylon V-
T-295, Type I, CL A OD, Size E
UOC: DWD/FSZ

6 XDOOO 98750 62J4342-20 Waistband 1

UOC: DWD/FSZ

END OF FIGURE

0052 00-3/(4 Blank) Change 1

 TM 10-1670-272-23&P 0053 00

GROUP 99 BULK MATERIALS

(2) (5)
(1) (3) (4) (6)
SMR DESCRIPTION AND USABLE
ITEM NO. CAGEC PART NO. QTY
CODE ON CODES (UOC)

1 PBOZZ 96906 MS27983-1 Cap, Snap Fastener. EA

Cloth, Netting, Nylon 3¾-in. SQ.

2 PAOZZ 81349 MIL-C-43805 YD
Mesh, 18-in. Wide

Cloth, Nylon, Type I, OD 48-in.

3 PAOZZ 81349 PIA-C-7020 FT
Wide

Cloth, Nylon, Type I, OD, 36-in.

4 PAOZZ 81349 PIA-C-7020 FT
Wide, 1.1 OZ

Cloth, Nylon, Type III, CL 3, OG

5 PCOZZ 81349 MIL-C-7219 FT
106

Cloth, Sateen, CL I, OG, 45-in.

6 PAOZZ 81349 MIL-C-10296 YD
Wide

7 PAOZZ 81349 PIA-C-5040 Cord, Nylon, Type III, OD YD

Dowel, Wood, Hardwood 5/8-in.

8 PAOZZ 81349 A-A-1975 EA
Diameter

9 PAOZZ 81348 C-F-206 Felt Sheet, Type I, 3/16-in. Thick SF

10 PBOZZ 96906 MS27983-4 Post, Snap Fastener HD

Rubber, Sheet, Cellular, Type II,

11 PCOZZ 81349 MIL-R-5001 EA
Grade A

12 PBOZZ 96906 75A3186-67B Socket, Snap Fastener FT

13 PBOZZ 96906 MS27983-3 Stud, Snap Fastener HD

Tape, Nylon, Tubular, Type I, 1-

14 PAOZZ 81349 PIA-T-1001 FT
in. Wide, OD

Tape, Nylon, Tubular, Type III,

15 PAOZZ 81349 PIA-T-5038 YD
¾-in. Wide, Natural

Tape, Nylon, Type I, 9/16-in.

16 PAOZZ 81349 PIA-W-4088 FT
Wide
Tape, Nylon, Type III, 1½-in.
17 PAOZZ 81349 PIA-T-5038 YD
Wide, OD
Tape, Nylon, Type III, CL R, 1¼-
18 PAOZZ 81349 PIA-W-4088 YD
in. Wide, OD

Change 1 0053 00-(1 Blank)/2

 TM 10-1670-272-23&P 0053 00

GROUP 99 BULK MATERIALS

(2) (5)
(1) (3) (4) (6)
SMR DESCRIPTION AND USABLE
ITEM NO. CAGEC PART NO. QTY
CODE ON CODES (UOC)

Tape, Nylon, Type III, OD, 1-in.

19 PAOZZ 81349 PIA-T-5038 FT
Wide

Thread, Nylon, Type I CL A OD

20 PAOZZ 81349 V-T-295 YD
Size 3

Thread, Nylon, Type I CL A OD

21 PAOZZ 81349 V-T-295 YD
Size 5
Thread, Nylon, Type I CL A OD,
22 PAOZZ 81349 V-T-295 YD
Size E
Thread, Nylon, Type I CL A Size
23 PAOZZ 81348 V-T-295 YD
6, Natural
Thread, Nylon, Type I CL A Size
24 PAOZZ 81349 V-T-295 YD
6, OD
Thread, Nylon, Type I CL A Size
25 PAOZZ 81348 V-T-295 YD
E, Natural

Webbing, Elastic, Cotton, CL 1,

26 PCOZZ 81349 MIL-W-5664 YD
1-in. Wide, OD
Webbing, Nylon, Tubular, 1-in.
27 PAOZZ 81349 PIA-W-5625 FT
Wide, OD

Webbing, Nylon, Type I, 1-in.

28 PCOZZ 81349 PIA-W-5664 FT
Wide, OD

Webbing, Nylon, Type I, 9/16-in.

29 PAOZZ 81349 PIA-W-4088 FT
Wide, OD
Webbing, Nylon, Type IV, 1-in.
30 PAOZZ 81349 PIA-T-5038 YD
Wide, OD

Webbing, Nylon, Type VII, 9/16-

31 PAOZZ 81349 PIA-W-4088 FT
in. Wide, OD

Webbing, Nylon, Type VIII, CL I

32 PAOZZ 81349 PIA-W-4088 FT
Wide, OD

Webbing, Nylon, Type XIII, CL

33 PAOZZ 81349 PIA-W-4088 FT
R 9/16-in. Wide

Webbing, Nylon, Type XVII, CL

34 PAOZZ 81349 PIA-W-4088 FT
R OD 1-in. Wide
Wire, Steel, Form 1
35 PBOZZ 81348 QQ-W-423-80-10 LB
Composition 430, Condition A

36 PAOZZ 81349 PIA-C-5040 Cord, Fibrous, Type II SL

END OF FIGURE

0053 00-3/(4 Blank) Change 1

 TM 10-1670-272-23&P 0054 00

MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY

SPECIAL TOOLS LIST

Not Applicable

END OF WORK PACKAGE

0054 00-1/(2 Blank)

 TM 10-1670-272-23&P 0055 00

MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY

NATIONAL STOCK NUMBER INDEX

NATIONAL STOCK NUMBER INDEX NATIONAL STOCK NUMBER INDEX

STOCK NUMBER FIGURE ITEM STOCK NUMBER FIGURE ITEM
1670-00-086-7780 1 7 5340-00-491-1065 4 4
8310-00-176-8083 BULK 15 1670-00-590-9909 1 1
1670-00-217-2421 2 20 8315-00-753-5952 BULK 17
9320-00-232-2473 BULK 11 8305-00-765-2863 BULK 5
5510-00-240-0070 2 4 5325-00-891-9073 BULK 1
5510-00-240-0070 BULK 8 9505-00-892-4616 BULK 35
4020-00-246-0688 BULK 7 1670-00-925-7843 4 1
8310-00-248-9716 BULK 23 8315-00-935-4741 BULK 19
8315-00-255-7675 BULK 14 8305-00-943-0981 BULK 6
8305-00-260-4586 BULK 33 5325-00-945-2577 BULK 12
8305-00-260-6909 BULK 29 1670-01-007-8559 1 6
8305-00-261-8579 BULK 30 1670-01-007-8563 1 9
8305-00-261-8585 BULK 32 8305-01-010-7033 2 22
4020-00-262-2019 BULK 36 8305-01-010-7033 BULK 2
8310-00-262-2770 BULK 25 8305-01-115-9168 BULK 3
8310-00-262-2772 BULK 22 1670-01-476-3068 1 3
8310-00-262-2777 BULK 21 1670-01-476-3068 5 1
8310-00-262-2780 BULK 24 1670-01-476-3130 1 4
8315-00-263-3604 BULK 18 1670-01-476-3130 5 2
8305-00-267-3009 BULK 34 1670-01-476-3131 1 2
8310-00-267-3027 BULK 20 1670-01-476-3131 5 6
5325-00-267-4908 BULK 13 1670-01-476-3142 5 3
8305-00-268-2455 BULK 27 1670-01-476-3142 1 5
5305-00-269-6657 2 21 BULK 16
8305-00-270-1291 BULK 4 BULK 31
8305-00-270-1894 BULK 26 END OF INDEX
8305-00-270-1894 BULK 28
1670-01-272-1901 1 8
5325-00-276-4908 BULK 13
5325-00-276-4978 BULK 10
8305-00-290-5584 BULK 9
1670-00-360-0469 2 2
1670-00-360-0469 3 3

0055 00-1/(2 Blank) Change 1

 TM 10-1670-272-23&P 0056 00

MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY

PART NUMBER INDEX

PART NUMBER INDEX

CAGE CODE PART NUMBER STOCK NUMBER FIGURE ITEM

81337 11-1-1501-1 1670-01-007-8559 1 6
81337 11-1-2143 6 3
81337 11-1-2143-1 1670-01-272-1901 1 8
81337 11-1-2144-26 6 4
81337 11-1-2149 3 1
81337 11-1-2149 3 2
81337 11-1-2149 3 4
81337 11-1-2149-1 1670-01-007-8563 1 9
81337 11-1-2594-18 4 5
81337 11-1-2594-18 5 4
81337 11-1-2594-5 4 6
81337 11-1-2594-5 5 5
81337 11-1-2674-1 2 5
81337 11-1-2674-2 2 6
81337 11-1-2674-3 2 7
81337 11-1-2674-4 2 8
81337 11-1-6991-1 1670-01-476-3142 1 5
81337 11-1-6991-1 1670-01-476-3142 5 3
81337 11-1-6993-1 1670-01-476-3068 1 3
81337 11-1-6993-1 1670-01-476-3068 5 1
81337 11-1-6993-2 1670-01-476-3130 1 4
81337 11-1-6993-2 1670-01-476-3130 5 2
81337 11-1-6994-1 1670-01-476-3131 1 2
81337 11-1-6994-1 1670-01-476-3131 5 6
81337 11-1-900-1 1670-00-598-0751
98750 55B6261 4 3
98750 55D6481-20 1670-00-925-7843 4 1
98750 55D6481-5 4 2
98750 56D6276 1670-00-590-9909 1 1
98750 58H6361-1 2 9
98750 58H6361-2 2 10
98750 58H6361-3 2 11
98750 58H6361-4 2 12
98750 58H6361-5 2 13
98750 61B4384 6 2
81337 61B4452 2 18
98750 62C4319 6 1

0056 00-1 Change 1

 TM 10-1670-272-23&P 0056 00

MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY

PART NUMBER INDEX

PART NUMBER INDEX - Continued

CAGE CODE PART NUMBER STOCK NUMBER FIGURE ITEM
81337 62J4342 1670-00-086-7780 1 7
98750 62J4342-15 7 2
98750 62J4342-20 7 6
98750 62J4342-24 7 4
98750 62J4342-4 7 5
98750 62J4342-4 7 3
58536 A-A-1975 5510-00-240-0070 2 4
98750 68K147 2 14
98750 68K147-15 2 23
98750 68K147-17 2 24
98750 68K147-18 2 17
98750 68K147-19 2 16
98750 68K147-20 2 3
98750 68K147-21 2 1
98750 68K147-22 2 15
98750 68K147 2 19
81349 A-A-1975 5510-00-240-0070 BULK 8
81348 C-F-206 8305-00-290-5584 BULK 9
81349 MIL-C-10296 8305-00-943-0981 BULK 6
81349 MIL-C-43805 8305-01-010-7033 2 22
81349 MIL-C-7219 8305-00-765-2863 BULK 5
81349 MIL-R-5001 9320-00-232-2473 BULK 11
81349 MIL-W-5664 8305-00-270-1894 BULK 26
81349 PIA-C-5040 4020-00-246-0688 BULK 7
81349 PIA-C-5040 4020-00-262-2019 BULK 36
81349 PIA-C-7020 8305-00-270-1291 BULK 4
81349 PIA-C-7020 8305-01-115-9168 BULK 3
81349 PIA-T-1001 8315-0-255-7675 BULK 14
81349 PIA-T-5038 8315-00-935-4741 BULK 19
81349 PIA-T-5038 8310-00-176-8083 BULK 15
81349 PIA-T-5038 8305-00-261-8579 BULK 30
81349 PIA-T-5038 7 1
81349 PIA-T-5038 8315-00-753-5952 BULK 17
81348 PIA-W-4088 8305-00-260-4586 BULK 33

Change 1 0056 00-2

 TM 10-1670-272-23&P 0056 00

MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY

PART NUMBER INDEX

PART NUMBER INDEX - Continued

CAGE CODE PART NUMBER STOCK NUMBER FIGURE ITEM
81349 PIA-W-4088 8315-00-263-3604 BULK 18
81349 PIA-W-4088 8305-00-260-6909 BULK 29
81348 PIA-W-4088 8305-00-261-8585 BULK 32
81349 PIA-W-4088 8305-00-267-3009 BULK 34
81349 PIA-W-4088 8305-01-010-7033 BULK 2
81349 PIA-W-5625 8305-00-268-2455 BULK 27
81349 PIA-W-5664 8310-00-270-1894 BULK 28
96906 PS22002-1 1670-00-217-2421 2 20
96906 PS22002-3 5305-00-269-6657 2 21
96906 PS27762-1 1670-00-360-0469 2 2
96906 PS27762-1 1670-00-360-0469 3 3
96906 PS27983-1 5325-00-891-9073 BULK 1
96906 PS27983-2 5325-00-945-2577 BULK 12
96906 PS27983-3 5325-00-276-4908 BULK 13
96906 PS27983-4 5325-00-276-4978 BULK 10
96906 PS70120 5340-00-491-1065 4 4
81348 QQ-W-423-80-10 9505-00-892-4616 BULK 35
81348 V-T-295 8310-00-262-2770 BULK 25
81349 V-T-295 8310-00-267-3027 BULK 20
81349 V-T-295 8310-00-262-277 BULK 21
81349 V-T-295 8310-00-262-2772 BULK 22
81348 V-T-295 8310-00-248-9716 BULK 23
81349 V-T-295 8310-00-262-2780 BULK 24
81349 BULK 16
81349 BULK 31
END OF INDEX

END OF WORK PACKAGE

0056 00-3/(4 Blank) Change 1

 TM 10-1670-272-23&P 0057 00

MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY

EXPENDABLE/DURABLE SUPPLIES AND MATERIALS LIST

SCOPE
This appendix lists expendable supplies and materials you will need to operate and maintain the 35-Foot
Diameter Parachute. These items are authorized to you by CTA 50-970, Expendable Items (Except
Medical, Class V, Repair Parts, and Heraldic Items).

EXPLANATION OF COLUMNS
Column 1, Item Number. This number is assigned to the entry in the listing and is referenced in the
narrative instructions to identify the material (e.g., Use File 1-inch flat (Item 8, WP 0057 00)).

Column 2, Level. This column identifies the lowest level of maintenance that requires the listed item.
(Enter as applicable).

C - Operator or Crew
O - Unit Maintenance
F - Direct Support Maintenance
H - General Support Maintenance
D - Depot Maintenance

Column 3, National Stock Number (NSN). This is the National stock number assigned to the item; use
it to request or requisition the item.

Column 4, Description. Indicates the Federal item name and, if required, a description to identify the
item.

Column 5, Unit of Measure (U/M). Indicates the measure used in performing the actual maintenance
function. This measure is expressed by a two-character alphabetical abbreviation (e.g., ea., in., pr.). If
the unit of measure differs from the unit of issue, requisition the lowest unit of issue that will satisfy your
requirements.

Table 1. Expendable/Durable Supplies and Materials List

(1) (3) (5)

(2) (4)
ITEM NATIONAL STOCK UNIT OF
LEVEL DESCRIPTION
NUMBER NUMBER MEASURE
1 O 1670-00-568-0323 Band, Rubber Retainer BX
2 O 9160-00-253-1171 Beeswax, Technical, 1-lb. Cake EA
3 O 7920-00-282-2470 Brush, Scrub, Household EA
4 O 7520-00-248-9285 Brush, Stenciling EA
5 O 5325-00-891-9073 Cap, Fastener EA
6 O 5350-00-221-0872 Cloth, Abrasive YD
7 O 8305-00-440-8326 Cloth, Cotton Sateen, 8.2-oz. YD
8 O 8305-00-926-6870 Cloth, Duck, Nylon, Type III YD
9 O 8305-00-433-5986 Cloth, Muslin-Cotton, Type III YD
10 O 1670-00-176-1802 Cloth, Parachute Mending YD
Cloth, Parachute, Nylon, 1.1-oz., 48-
11 O 8305-01-115-9168 YD
IN. Wide
Cloth, Nylon, Type I, OG, 36-IN.-W.,
12 O 8305-00-765-2863 FT
1.1OZ

0057 00-1
 TM 10-1670-272-23&P 0057 00

MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY

EXPENDABLE/DURABLE SUPPLIES AND MATERIALS LIST

Table 1. Expendable/Durable Supplies and Materials List – Continued

(1) (3) (5)

(2) (4)
ITEM NATIONAL STOCK UNIT OF
LEVEL DESCRIPTION
NUMBER NUMBER MEASURE
Cloth Netting, Nylon, 3¾-in. Square YD
13 O 8305-01-010-7033
Mesh, 18-in. Wide

14 O 4020-00-262-2019 Cord, Nylon, Type II YD

15 O 4020-00-246-0688 Cord, Nylon, Type III YD

16 O 7930-00-281-4731 Dishwashing Compound, Hand Flake 50-lb. Sack
5
17 O 5510-00-240-0070 Dowel, Hardwood, /8-IN. Diameter EA
18 O 8315-00-106-5973 Fastener Tape, Hook YD
19 O 8315-00-106-5974 Fastener Tape, Pile YD
3
20 O 8305-00-290-5584 Felt, Type I, /16-IN. Thick SF
21 O 7510-00-634-6583 Ink, Marking, Orange/Yellow BT
22 O 7510-00-286-5362 Ink, Marking, Parachute, Strata-Blue BT
23 O 1670-00-925-5615 Kit, Canopy Release KT
24 O 9150-00-754-0064 Lubricant, Solid Film CN
25 O 7520-000-973-1059 Marker, Felt Tip, Black BX
Netting, Nylon, 3¾-IN. Square
26 O 8305-01-010-7033 YD
Mesh, 18-IN. Wide
27 O 8010-00-297-0809 Paint, Enamel, Red QT
28 O 8010-01-122-1969 Paint, Enamel, Yellow, 33538 QT
29 O 8315-00-160-7759 Paper, Kraft, Untreated RL
30 O 7520-01-060-5820 Pen, Ballpoint DZ
31 O 7510-00-240-1525 Pencil, China Marking, White BX
32 O 5325-00-276-4978 Post, Fastener BX
33 O 7390-00-205-3570 Rag, Wiping BL
34 O 1670-00-360-0469 Reefing Ring, Control Line EA
35 O 9320-00-232-2473 Rubber, Cellular, ½-IN. Thick SH
36 O 5325-00-267-4908 Snap Fastener, Stud
37 O 5325-00-945-2577 Socket Assembly
38 O 5325-00-893-6243 Socket, Fastener
39 O 9310-00-160-7858 Stencil Board, Oiled HD
40 O 5325-00-276-4908 Stud, Fastener HD
Tape, Adhesive, Pressure Sensitive, ½-
41 O 7510-00-550-7129 RO
IN., Yellow
42 O 4020-00-753-6555 Tape, Lacing and Tying RO
43 O 7510-00-266-6712 Tape, Masking 1-in Wide RO
44 O 7510-00-266-6710 Tape, Masking, 2-inches Wide RO
Tape, Nylon, Tubular, Cotton-Filled,
45 O 8315-00-255-7675 RL
1-IN. Wide

0057 00-2
 TM 10-1670-272-23&P 0057 00

MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY

EXPENDABLE/DURABLE SUPPLIES AND MATERIALS LIST

Table 1. Expendable/Durable Supplies and Materials List – Continued

(1) (3) (5)

(2) (4)
ITEM NATIONAL STOCK UNIT OF
LEVEL DESCRIPTION
NUMBER NUMBER MEASURE
46 O 8315-00-238-8089 Tape, Nylon, Tubular, OD 7, 1-N.. Wide RL
47 O 8315-00-176-8083 Tape, Nylon, Type III, ¾-IN. Wide RL
Tape, Nylon, Type III, 1¼-IN.. Wide, OD,
48 O 8315-00-263-3604 RL
CL R
49 O 8315-00-753-5952 Tape, Nylon, Type III, 1½-IN. Wide RL
50 O 8315-00-935-4741 Tape, Nylon, Type III, 1-IN. Wide, OD YD
Tape, Pressure Sensitive, 2-IN., OD
51 O 7510-00-633-0196 RO
(813548) PP-T-60
52 O 8310-00-261-9741 Thread, Cotton, Ticket 24/4, NAT TU
53 O 8310-00-262-2772 Thread, Nylon, Green, Size E TU
54 O 8310-00-248-9714 Thread, Nylon, Natural, Size 3 TU
55 O 8310-00-262-3324 Thread, Nylon, Natural, Size A TU
56 O 8310–00-262-2770 Thread, Nylon, Natural, Size E TU
57 O 8310-00-267-3027 Thread, Nylon, OD, Size 3 TU
58 O 8310-00-262-2780 Thread, Nylon, Size 6 TU
59 O 9160-00-285-2044 Wax, Paraffin, 1-lb. Cake EA
60 O 8305-00-270-1894 Webbing, Elastic, Cotton, 1-IN. Wide YD
Webbing, Nylon, Type IV, 1-IN. Wide,
61 O 8305-00-261-8579
OD YD
Webbing, Textile, Cotton, Type I, ¼-
62 O 8305-00-268-2411 YD
IN.Wide
63 O 8305-00-260-2561 Webbing, Textile, Cotton, Type II YD
64 O 8305-00-935-3252 Webbing, Textile, Cotton, Type VI YD
Webbing, Textile, Nylon, Tubular, ½-IN.
65 O 8305-00-268-2453
Wide YD
Webbing, Textile, Nylon, Tubular, 1-IN.
66 O 8305-00-268-2455
Wide YD
9
Webbing, Textile, Nylon, Type I, /16-IN.
67 O 8305-00-260-6909
Wide YD
Webbing, Textile, Nylon, Type III, Yellow
68 O 8305-00-559-6871
Shade AF 1365 CL R YD
69 O 8305-00-281-3013 Webbing, Textile, Nylon, Type VI YD
70 O 8305-00-263-3598 Webbing, Textile, Nylon, Type VIII YD
71 O 8035-00-260-4586 Webbing, Textile, Nylon, Type XIII YD
72 O 8305-00-267-3009 Webbing, Textile, Nylon, Type XVII YD
73 O 8305-00-261-8579 Webbing, Textile, Type IV, 1-IN. YD
74 O 9505-00-892-4616 Wire, Steel, 0.080-in. Diameter CL
END OF TABLE

0057 00-3/(4 Blank)

 TM 10-1670-272-23&P 0058 00

ILLUSTRATED LIST OF MANUFACTURED ITEMS

MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY
ANTI-INVERSION NET PRESSER FOOT

Modify the sewing presser foot in accordance with the illustrations below. Use the modified presser foot to
aid in the repair of the anti-inversion net.

NOTE

Data in this figure may be used to modify the presser foot for repair
of the anti-inversion net. A modified presser foot for splicing only net
1
cords does not require the /16-inch groove illustrated in View A.

See
View
Fill “A”
(Braze)

1/16 RAD,
8 Places

Standard Zig-Zag Modified Presser Foot For

Presser Foot Anti-Inversion Net Repairs

View “A”

END OF WORK PACKAGE

0058 00-1/(2 Blank)

 TM 10-1670-272-23&P

ALPHABETICAL INDEX

Subject WP Sequence No. – Page No.

A
Accomplishing a Log Record ..........................................................................................................0003 00-5
Accordion Folding/Rigger Rolling ...................................................................................................0042 00-2
Acronyms and Abbreviations...........................................................................................................0001 00-3
After-Use Receipt ............................................................................................................................0003 00-9
Airing (and Shakeout) (Unit) ............................................................................................................0007 00-3
Anti-Inversion Net Presser Foot ......................................................................................................0058 00-1
Anti-Inversion Net, Inspect (Unit) ....................................................................................................0024 00-1
Anti-Inversion Net, Repair (Unit) .....................................................................................................0024 00-1
Anti-Inversion Net, Replace (Unit) ...................................................................................................0024 00-5
Army Parachute Log Record .........................................................................................................0011 00-50
Assembling the MC1-1B/MC1-1E Parachute ..................................................................................0004 00-1
Attaching Universal Static Line......................................................................................................0011 00-53

B
Basting and Temporary Tacking (DS) .............................................................................................0033 00-1
Basting and Temporary Tacking (Unit)............................................................................................0012 00-2
Bridle Loop, Repair (Unit) ................................................................................................................0015 00-1
Bridle Loop, Replace (Unit) .............................................................................................................0015 00-1

C
Cleaning and Drying (Unit) ..............................................................................................................0008 00-1
Cleaning Fabric Items With Hand Dishwashing Compound ...........................................................0008 00-2
Cleaning Metal Items.......................................................................................................................0008 00-3
Closing Deployment Bag and Stowing Suspension Lines ............................................................0011 00-33
Closing the Pack Tray ...................................................................................................................0011 00-41
Common Name ...............................................................................................................................0001 00-3
Common Tools and Equipment.......................................................................................................0001 00-5
Configuration/Condition ..................................................................................................................0004 00-2
Connector Link Assembly, Repair (Unit) ........................................................................................0028 00-1
Connector Link Assembly, Replace (Unit).......................................................................................0028 00-1
Control Line Bridle, Repair (Unit) ....................................................................................................0026 00-1
Control Line Bridle, Replace (Unit) ..................................................................................................0026 00-1
Control Line, Repair (Unit)...............................................................................................................0027 00-1
Control Line, Replace (Unit) ............................................................................................................0027 00-1
Corrosion Prevention And Control (CPC)........................................................................................0001 00-2

D
Darning (Unit) ..................................................................................................................................0012 00-4
Deployment Bag, Repair (Unit) .......................................................................................................0030 00-1

Index -1
 TM 10-1670-272-23&P

Subject WP Sequence No. – Page No.

D - Continued
Deployment Bag, Replace (Unit) ...................................................................................................0030 00-13
Description Of Major Components ..................................................................................................0002 00-1
Destruction Of Army Materiel To Prevent Enemy Use....................................................................0001 00-2
Drop Testing Criteria .......................................................................................................................0005 00-1
Drying Fabric Items ....................................................................................................... 0008 00-3/0010 00-2

E
Equipment Characteristics, Capabilities, And Features ..................................................................0002 00-1
Equipment Data...............................................................................................................................0002 00-6
Equipment Description and Data................................................................................................... 0002 00--1
Equipment Disposition.....................................................................................................................0009 00-3
Equipment Improvements and Recommendations, Reporting (EIR) ..............................................0001 00-2
Equipment Name.............................................................................................................................0001 00-1
Expendable and Durable Items List ................................................................................................0057 00-1
Explanation of Columns in Remarks, Table 3 .................................................................................0044 00-3
Explanation of Columns in the MAC, Table 1 .................................................................................0045 00-2
Explanation of Columns in the Repair Parts and Special Tools List ...............................................0045 00-1
Explanation of Columns in the Tools and Test Equipment Requirements, Table 2........................0044 00-3

F
Field Manuals ..................................................................................................................................0043 00-2
Folding the Canopy Gores ............................................................................................................0011 00-16
Folding the Harness ......................................................................................................................0011 00-55
Forms ............................................................................................................................................0043 00-2

G
General Information.........................................................................................................................0001 00-1
General Procedures for Air Delivery Equipment .............................................................................0004 00-1
General Storage Requirements.......................................................................................................0041 00-1
Gore Sections, Repair (Unit) ...........................................................................................................0020 00-1
Gore Sections, Replace (DS) ..........................................................................................................0038 00-1

H
Harness Assembly, Repair (Unit) ....................................................................................................0031 00-1
Harness Assembly, Replace (Unit) .................................................................................................0031 00-1
How to Locate Repair Parts ............................................................................................................0045 00-7
How to Use this Manual ................................................................................................................................ v

Index -2
 TM 10-1670-272-23&P

Subject WP Sequence No. – Page No.

I
Illustrated List of Manufactured Items ............................................................................................0058 00-1
Initial Receipt ...................................................................................................................................0003 00-1
Inspection Function Requirement....................................................................................................0006 00-1
Inspection Personnel ......................................................................................................................0003 00-1
Inspection ...................................................................................................................... 0009 00-1/0011 00-1
Installing Attaching Tie ....................................................................................................................0003 00-3
In-Storage Inspection .................................................................................................... 0009 00-2/0042 00-1

L
List of Acronyms and Abbreviations ................................................................................................0001 00-3
Locate Repair Parts.........................................................................................................................0045 00-7
Location And Description of Major Components .............................................................................0002 00-1
Longfolding the Canopy.................................................................................................................0011 00-25
Lower Lateral Band, Repair (Unit)...................................................................................................0021 00-1
Lubrication Service Intervals ..........................................................................................................0006 00-7

M
Maintenance Allocation Chart (MAC), Table 1 ................................................................................0044 00-3
Maintenance Codes.........................................................................................................................0045 00-3
Maintenance Forms, Records and Reports.....................................................................................0001 00-2
Maintenance Functions ...................................................................................................................0044 00-1
Marking and Restenciling (DS)........................................................................................................0035 00-1
Marking and Restenciling (Unit) ......................................................................................................0014 00-1
Marking Parachutes ........................................................................................................................0003 00-2
Marking Risers ................................................................................................................................0003 00-2
Mending Cloth Patching Specifications, Table 3.............................................................................0012 00-7
Modification Work Order Compliance Record Page ......................................................................0003 00-6

N
National Stock Number Index..........................................................................................................0055 00-1
Nomenclature Cross-Reference List ...............................................................................................0001 00-3
Note Page .......................................................................................................................................0003 00-8

O
Official Name ..................................................................................................................................0001 00-3
Orientation .......................................................................................................................................0011 00-5
Orifice Edge Reinforcement (Repair) ..............................................................................................0016 00-1

Index -3
 TM 10-1670-272-23&P

Subject WP Sequence No. – Page No.

P
Pack Tray, Repair (Unit) ..................................................................................................................0032 00-1
Pack Tray, Replace (Unit) ...............................................................................................................0032 00-2
Packing Procedures ........................................................................................................................0011 00-1
Pack-In-Process Inspection.............................................................................................................0009 00-1
Parachute Log Record ....................................................................................................................0003 00-3
Parachute Repack Interval ..............................................................................................................0005 00-1
Part Number Index ..........................................................................................................................0056 00-1
Patching (Unit) .................................................................................................................................0012 00-7
Pocket Band, Repair (Unit)..............................................................................................................0022 00-1
Pocket Band, Replace (Unit) ...........................................................................................................0022 00-1
Position Control Lines......................................................................................................................0003 00-2
Preparation for Shipment ...............................................................................................................0042 00-1
Preparation for Storage ...................................................................................................................0041 00-1
Preparing Parachute for Proper Layout ..........................................................................................0011 00-7
Preventive Maintenance Checks and Services (PMCS) ................................................................0006 00-1
Preventive Maintenance Checks and Services (PMCS), Introduction ...........................................0005 00-1
Publication Indexes ........................................................................................................................0043 00-1
Purpose of Equipment .....................................................................................................................0001 00-1

R
Radial Seam, Repair (Unit) .............................................................................................................0019 00-1
Radial Tape, Replace (DS) .............................................................................................................0039 00-1
Receipt of Used Parachute ........................................................................................... 0003 00-1/0003 00-9
References ......................................................................................................................................0043 00-1
Air Force Technical Order Forms .................................................................................................0043 00-2
Air Force Technical Orders ..........................................................................................................0043 00-2
Army Regulations .........................................................................................................................0043 00-2
DA PAM .......................................................................................................................................0043 00-1
Field Manuals ...............................................................................................................................0043 00-2
Forms ...........................................................................................................................................0043 00-2
Marine Corps Forms.....................................................................................................................0043 00-3
Publication Indexes ......................................................................................................................0043 00-1
Technical Bulletins........................................................................................................................0043 00-2
Technical Manuals........................................................................................................................0043 00-1
Remarking and Restenciling (DS) ...................................................................................................0035 00-2
Remarking and Restenciling (Unit)..................................................................................................0014 00-2
Removing Inversion.........................................................................................................................0011 00-7
Removing Tangles/Twists from Apex Lines ....................................................................................0011 00-7
Removing Turns, Tangles/Twists from Suspension Lines ..............................................................0011 00-9
Repair Parts and Special Tools List (RPSTL), Introduction ............................................................0045 00-1
Repair Parts List
Group 00 MC1-1B/MC1-1E Troop Back Personnel Parachute....................................................0046 00-1
Group 01 MC1-1B/MC1-1E Personnel, Canopy W/Net and Orifice ............................................0047 00-1
Group 02 MC1-1B/MC1-1E Riser Extension ...............................................................................0048 00-1
Group 03 Standard Deployment Bag ...........................................................................................0049 00-1
Group 04 Universal Static line......................................................................................................0050 00-1
Group 05 Personnel Parachute Harness .....................................................................................0051 00-1
Group 06 Personnel Parachute Pack Tray ..................................................................................0052 00-1
Group 99 Bulk Materials...............................................................................................................0053 00-1

Index -4
 TM 10-1670-272-23&P

Subject WP Sequence No. – Page No.

R - Continued
Replacing a Filled Out or Unserviceable Log Record .....................................................................0003 00-8
Replacing a Lost Log Record ..........................................................................................................0003 00-8
Reporting Equipment Improvement Recommendations (EIR) .......................................................0001 00-2
Reporting Errors and Recommending Improvements.................................................................................... i
Restenciling (DS).............................................................................................................................0035 00-2
Restenciling (Unit) ...........................................................................................................................0014 00-2
Restitching (DS) ..............................................................................................................................0033 00-2
Restitching (Unit) .............................................................................................................................0012 00-2
Rigger Rolling ..................................................................................................................................0042 00-2
Rigger’s Orientation.........................................................................................................................0011 00-5
Rinsing Parachute Assembly Immersed in Fresh-Water .............................................. 0008 00-3/0010 00-2
Rinsing Parachute Assembly Immersed in Salt-Water ................................................. 0008 00-2/0010 00-1
Risers, Repair (Unit) ........................................................................................................................0029 00-1
Risers, Replace (Unit) .....................................................................................................................0029 00-3
Routine Inspection...........................................................................................................................0009 00-1

S
Safety, Care and Handling ..............................................................................................................0001 00-5
Salt-Water Contamination Test .......................................................................................................0010 00-1
Scope of Manual..............................................................................................................................0001 00-1
Searing and Waxing (DS)................................................................................................................0034 00-1
Searing and Waxing (Unit) ..............................................................................................................0013 00-1
Service Upon Receipt......................................................................................................................0003 00-1
Sewing Machine Code Symbols......................................................................................................0012 00-2
Sewing Procedures (DS) .................................................................................................................0033 00-1
Sewing Procedures (Unit) ...............................................................................................................0012 00-1
Shakeout and Airing (Unit) ..............................................................................................................0007 00-1
Shipment, Preparation for ...............................................................................................................0042 00-1
Special Information..........................................................................................................................0045 00-6
Special Tools List ............................................................................................................................0054 00-1
Special Tools, TMDE and Support Equipment................................................................................0001 00-5
Standard 5-Foot Static Line Extension..........................................................................................0011 00-52
Static Line Assembly, Repair (Unit).................................................................................................0030 00-8
Static Line Assembly, Replace (Unit) ............................................................................................0030 00-10
Static Line Extension, Repair (Unit) ..............................................................................................0030 00-12
Stitching and Restitching (DS) ........................................................................................................0033 00-2
Stitching and Restitching (Unit) .......................................................................................................0012 00-2
Stitching and Restitching Specifications, Table 2 ...........................................................................0012 00-3
Storage Criteria ...............................................................................................................................0041 00-1
Storage Requirements, General......................................................................................................0041 00-1
Storage Specifics for Parachutes ....................................................................................................0041 00-1
Storage, Preparation for ..................................................................................................................0041 00-1
Stowing the Canopy ......................................................................................................................0011 00-30
Stowing the Static Lines ................................................................................................................0011 00-45
Stowing the Suspension Lines ......................................................................................................0011 00-33
Supporting Information ....................................................................................................................0044 00-1
Suspension Line, Repair (Unit) .......................................................................................................0025 00-1
Suspension Line, Replace (DS) ......................................................................................................0040 00-1

Index -5
 TM 10-1670-272-23&P

Subject WP Sequence No. – Page No.

T
Table of Contents .......................................................................................................................................... ii
Technical Bulletins...........................................................................................................................0043 00-2
Technical Manuals...........................................................................................................................0043 00-1
Technical/Rigger-Type Inspection...................................................................................................0009 00-2
Temporary Tacking (DS) .................................................................................................................0033 00-1
Temporary Tacking (Unit)................................................................................................................0012 00-2
Tools and Test Equipment Requirements, Table 2.........................................................................0044 00-5
Tying Connector Links and Suspension Line Protective Cover ....................................................0011 00-39
Tying Connector Links...................................................................................................................0011 00-39
Tying Static Line to Bridle Loop of Canopy ...................................................................................0011 00-28

U
Universal Static Line......................................................................................................................0030 00-13
Upper Lateral Band, Repair (Unit)...................................................................................................0018 00-1
Usable On Code .............................................................................................................................0045 00-6

V
Vent Cap, Repair (Unit) ...................................................................................................................0037 00-1
Vent Cap, Replace (DS) ..................................................................................................................0037 00-1
Vent Lines, Repair (DS)...................................................................................................................0036 00-1
Vent Lines, Replace (DS) ................................................................................................................0036 00-1
V-Tabs, Repair (Unit).......................................................................................................................0023 00-1
V-Tabs, Replace (Unit) ....................................................................................................................0023 00-1

W
Warning Summary.........................................................................................................................................a
Warranty Information .......................................................................................................................0001 00-3
Waxing (DS) ....................................................................................................................................0034 00-1
Waxing (Unit) ...................................................................................................................................0013 00-1

Z
Zig-Zag Sewing (DS) .......................................................................................................................0033 00-3
Zig-Zag Sewing (Unit)......................................................................................................................0012 00-6

Index -6
 By Order of the Secretaries of the Army, Air Force, and Navy (Including the Marine Corps):

ERIC K. SHINSEKI
General, United States Army
Official: Chief of Staff

JOEL B. HUDSON
Administrative Assistant to the
Secretary of the Army
0200203

MICHAEL E. RYAN
GENERAL, USAF
Chief of Staff

Official:
GEORGE T. BABBETT
General, USAF
Commander, Air Force Materiel Command

D.G. MORRAL
Rear Admiral, USN
Program Executive Officer
For Expeditionary Warfare
Naval Sea Systems Command

R.P SHOCKEY
Director, Program Support
Marine Corps Systems Command

DISTRIBUTION:
To be distributed in accordance with Initial Distribution Number (IDN 252688), requirements for
TM 10-1670-272-23&P.
These are the instructions for sending an electronic 2028

The following format must be used if submitting an electronic 2028. The subject
line must be exactly the same and all fields must be included; however only the
following fields are mandatory: 1, 3, 4, 5, 6, 7, 8, 9, 10, 13, 15, 16, 17, and 27.

From: •Whomever" <whomever@avma27.army.mil>

To: amssbriml@natick.army.mil

Subject: DA Form 2028

1. From: Joe Smith

2. Unit: home
3. Address: 4300 Park
4. City: Hometown
5. St: MO
6. Zip: 77777
7. Date Sent: 19-OCT-93
8. Pub no: 55-2840-229-23
9. Pub Title : TM
10. Publication Date: 04-JUL-85
11. Change Number: 7
12. Submitter Rank : MSG
13. Submitter FName: Joe
14. Submitter MName: T
15. Submitter LName: Smith
16. Submitter Phone : 123-123-1234
17. Problem: 1
18. Page: 2
19. Paragraph: 3
20. Line: 4
21. NSN: 5
22. Reference: 6
23. Figure: 7
24. Table: 8
25. Item: 9
26. Total: 123
27. Text:
This is the text for the problem below line 27.
 RECOMMENDED CHANGES TO PUBLICATIONS AND Use Part II (reverse) for Repair Parts and Special Tool DATE
Lists (RPSTL) and Supply Catalogs/Supply Manuals
BLANK FORMS (SC/SM). 21 October 2003
For use of this form, see AR 25-30; the proponent agency is ODISC4.

TO: (Forward to proponent of publication or form) (Include ZIP Code) FROM: (Activity and location) (Include ZIP Code)
COMMANDER
U.S. ARMY SOLDIER AND BIOLOGICAL CHEMICAL COMMAND PFC Jane Doe
ATTN: AMSSB-RIM-L CO A 3rd Engineer BR
KANSAS STREET
NATICK, MA 01760-5052
Ft. Leonardwood, MO 63108
PART I – ALL PUBLICATIONS (EXCEPT RPSTL AND SC/SM) AND BLANK FORMS
PUBLICATION/FORM NUMBER DATE TITLE

TM 10-1670-296-23&P 30 October 2002 Unit Manual for Ancillary Equipment for Low Velocity Air
Drop Systems
ITEM PAGE PARA- LINE FIGURE TABLE RECOMMENDED CHANGES AND REASON
NO. NO. GRAPH NO. * NO. NO. (Provide exact wording of recommended changes, if possible).

0036 00-2
1 In table 1, Sewing Machine Code Symbols, the second
sewing machine code symbol should be MD ZZ not MD
22.

Change the manual to show Sewing Machine, Industrial:

Zig-Zag; 308 stitch; medium-duty; NSN 3530-01-181-1421
as a MD ZZ code symbol.

*Reference to line numbers within the paragraph or subparagraph.

TYPED NAME, GRADE OR TITLE TELEPHONE EXCHANGE/AUTOVON, PLUS SIGNATURE
EXTENSION

Jane Doe, PFC 508-233-4141 Jane Doe Jane Doe

DA FORM 2028, FEB 74 REPLACES DA FORM 2028, 1 DEC 68, WHICH WILL BE USED. USAPPC V3.00
TO: (Forward direct to addressee listed in publication) FROM: (Activity and location) (Include ZIP Code) DATE
COMMANDER PFC Jane Doe
U.S. ARMY SOLDIER AND BIOLOGICAL CHEMICAL COMMAND 21 October 2003
ATTN: AMSSB-RIM-L CO A 3rd Engineer BR
KANSAS STREET Ft. Leonardwood, MO 63108
NATICK, MA 01760-5052
PART II – REPAIR PARTS AND SPECIAL TOOL LISTS AND SUPPLY CATALOGS/SUPPLY MANUALS
PUBLICATION NUMBER DATE TITLE

TM 10-1670-296-23&P 30 October 2002 Unit Manual for Ancillary Equipment for Low
Velocity Air Drop Systems
TOTAL NO. OF
PAGE COLM LINE NATIONAL REFERENCE FIGURE ITEM MAJOR ITEMS
NO. NO. NO. STOCK NUMBER NO. NO. NO. SUPPORTED RECOMMENDED ACTION

0066 00-1
4 Callout 16 in figure 4 is pointed
to a D-Ring. In the Repair Parts
List key for figure 4, item 16 is
called a Snap Hook. Please
correct one or the other.

PART III – REMARKS (Any general remarks or recommendations, or suggestions for improvement of publications and blank
forms. Additional blank sheets may be used if more space is needed.)

TYPED NAME, GRADE OR TITLE TELEPHONE EXCHANGE/AUTOVON, PLUS EXTENSION SIGNATURE

UASPPC V3.00
 RECOMMENDED CHANGES TO PUBLICATIONS AND Use Part II (reverse) for Repair Parts and Special Tool DATE
Lists (RPSTL) and Supply Catalogs/Supply Manuals
BLANK FORMS (SC/SM).
For use of this form, see AR 25-30; the proponent agency is ODISC4.

TO: (Forward to proponent of publication or form) (Include ZIP Code) FROM: (Activity and location) (Include ZIP Code)
COMMANDER
U.S. ARMY SOLDIER AND BIOLOGICAL CHEMICAL COMMAND
ATTN: AMSSB-RIM-L
KANSAS STREET
NATICK, MA 01760-5052
PART I – ALL PUBLICATIONS (EXCEPT RPSTL AND SC/SM) AND BLANK FORMS
PUBLICATION/FORM NUMBER DATE TITLE
TM 10-1670-272-23&P 1 February 2002 UNIT AND DIRECT SUPPORT (DS) MAINTENANCE MANUAL
(INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST) FOR
PARACHUTE, PERSONNEL TYPE: 35-FOOT DIAMETER, MC1-1B
TROOP BACK PARACHUTE ASSEMBLY NSN 1670-00-598-0751
PARACHUTE, PERSONNEL TYPE: 35-FOOT DIAMETER, MC1-1E
TROOP BACK PARACHUTE ASSEMBLY NSN 1670-01-499-6573
ITEM PAGE PARA- LINE FIGURE TABLE RECOMMENDED CHANGES AND REASON
NO. NO. GRAPH NO. * NO. NO. (Provide exact wording of recommended changes, if possible).

*Reference to line numbers within the paragraph or subparagraph.

TYPED NAME, GRADE OR TITLE TELEPHONE EXCHANGE/AUTOVON, PLUS SIGNATURE
EXTENSION

DA FORM 2028, FEB 74 REPLACES DA FORM 2028, 1 DEC 68, WHICH WILL BE USED. USAPPC V3.00
TO: (Forward direct to addressee listed in publication) FROM: (Activity and location) (Include ZIP Code) DATE

PART II – REPAIR PARTS AND SPECIAL TOOL LISTS AND SUPPLY CATALOGS/SUPPLY MANUALS
PUBLICATION NUMBER DATE TITLE
TM 10-1670-272-23&P 1 February 2002 UNIT AND DIRECT SUPPORT (DS) MAINTENANCE
MANUAL (INCLUDING REPAIR PARTS AND SPECIAL
TOOLS LIST) FOR PARACHUTE, PERSONNEL TYPE:
35-FOOT DIAMETER, MC1-1B TROOP BACK
PARACHUTE ASSEMBLY NSN 1670-00-598-0751
PARACHUTE, PERSONNEL TYPE: 35-FOOT
DIAMETER, MC1-1E TROOP BACK PARACHUTE
ASSEMBLY NSN 1670-01-499-6573
TOTAL NO.
PAGE COLM LINE NATIONAL STOCK REFERENCE FIGURE ITEM OF MAJOR
NO. NO. NO. NUMBER NO. NO. NO. ITEMS RECOMMENDED ACTION
SUPPORTED

PART III – REMARKS (Any general remarks or recommendations, or suggestions for improvement of publications and
blank forms. Additional blank sheets may be used if more space is needed.)

TYPED NAME, GRADE OR TITLE TELEPHONE EXCHANGE/AUTOVON, PLUS EXTENSION SIGNATURE

UASPPC V3.00
 RECOMMENDED CHANGES TO PUBLICATIONS AND Use Part II (reverse) for Repair Parts and Special Tool DATE
Lists (RPSTL) and Supply Catalogs/Supply Manuals
BLANK FORMS (SC/SM).
For use of this form, see AR 25-30; the proponent agency is ODISC4.

TO: (Forward to proponent of publication or form) (Include ZIP Code) FROM: (Activity and location) (Include ZIP Code)
COMMANDER
U.S. ARMY SOLDIER AND BIOLOGICAL CHEMICAL COMMAND
ATTN: AMSSB-RIM-L
KANSAS STREET
NATICK, MA 01760-5052
PART I – ALL PUBLICATIONS (EXCEPT RPSTL AND SC/SM) AND BLANK FORMS
PUBLICATION/FORM NUMBER DATE TITLE
TM 10-1670-272-23&P 1 February 2002 UNIT AND DIRECT SUPPORT (DS) MAINTENANCE MANUAL
(INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST) FOR
PARACHUTE, PERSONNEL TYPE: 35-FOOT DIAMETER, MC1-1B
TROOP BACK PARACHUTE ASSEMBLY NSN 1670-00-598-0751
PARACHUTE, PERSONNEL TYPE: 35-FOOT DIAMETER, MC1-1E
TROOP BACK PARACHUTE ASSEMBLY NSN 1670-01-499-6573
ITEM PAGE PARA- LINE FIGURE TABLE RECOMMENDED CHANGES AND REASON
NO. NO. GRAPH NO. * NO. NO. (Provide exact wording of recommended changes, if possible).

*Reference to line numbers within the paragraph or subparagraph.

TYPED NAME, GRADE OR TITLE TELEPHONE EXCHANGE/AUTOVON, PLUS SIGNATURE
EXTENSION

DA FORM 2028, FEB 74 REPLACES DA FORM 2028, 1 DEC 68, WHICH WILL BE USED. USAPPC V3.00
TO: (Forward direct to addressee listed in publication) FROM: (Activity and location) (Include ZIP Code) DATE

PART II – REPAIR PARTS AND SPECIAL TOOL LISTS AND SUPPLY CATALOGS/SUPPLY MANUALS
PUBLICATION NUMBER DATE TITLE
TM 10-1670-272-23&P 1 February 2002 UNIT AND DIRECT SUPPORT (DS) MAINTENANCE
MANUAL (INCLUDING REPAIR PARTS AND SPECIAL
TOOLS LIST) FOR PARACHUTE, PERSONNEL TYPE:
35-FOOT DIAMETER, MC1-1B TROOP BACK
PARACHUTE ASSEMBLY NSN 1670-00-598-0751
PARACHUTE, PERSONNEL TYPE: 35-FOOT
DIAMETER, MC1-1E TROOP BACK PARACHUTE
ASSEMBLY NSN 1670-01-499-6573
TOTAL NO.
PAGE COLM LINE NATIONAL STOCK REFERENCE FIGURE ITEM OF MAJOR
NO. NO. NO. NUMBER NO. NO. NO. ITEMS RECOMMENDED ACTION
SUPPORTED

PART III – REMARKS (Any general remarks or recommendations, or suggestions for improvement of publications and
blank forms. Additional blank sheets may be used if more space is needed.)

TYPED NAME, GRADE OR TITLE TELEPHONE EXCHANGE/AUTOVON, PLUS EXTENSION SIGNATURE

UASPPC V3.00
 The Metric System and Equivalents
Linear Measure Liquid Measure
1 centimeter = 10 millimeters = .39 inch 1 centiliter = 10 milliliters = .34 fl. ounce
1 decimeter = 10 centimeters = 3.94 inches 1 deciliter = 10 centiliters = 3.38 fl. ounces
1 meter = 10 decimeters = 39.37 inches 1 liter = 10 deciliters = 33.81 fl. ounces
1 dekameter = 10 meters = 32.8 feet 1 dekaliter = 10 liters = 2.64 gallons
1 hectometer = 10 dekameters = 328.08 feet 1 hectoliter = 10 dekaliters = 26.42 gallons
1 kilometer = 10 hectometers = 3,280.8 feet 1 kiloliter = 10 hectoliters = 264.18 gallons
Weights Square Measure
1 centigram = 10 milligrams = .15 grain 1 sq. centimeter = 100 sq. millimeters = .155 sq. inch
1 decigram = 10 centigrams = 1.54 grains 1 sq. decimeter = 100 sq. centimeters = 15.5 sq. inches
1 gram = 10 decigrams = .035 ounce 1 sq. meter (centare) = 100 sq. decimeters = 10.76 sq. feet
1 dekagram = 10 grams = .35 ounce 1 sq. dekameter (are) = 100 sq. meters = 1,076.4 sq. feet
1 hectogram = 10 dekagrams = 3.52 ounces 1 sq. hectometer (hectare) = 100 sq. dekameters = 2.47 acres
1 kilogram = 10 hectograms = 2.2 pounds 1 sq. kilometer = 100 sq. hectometers = .386 sq. mile
1 quintal = 100 kilograms = 220.46 pounds
1 metric ton = 10 quintals = 1.1 short tons Cubic Measure
1 cu. centimeter = 1000 cu. millimeters = .06 cu. inch
1 cu. decimeter = 1000 cu. centimeters = 61.02 cu. inches
1 cu. meter = 1000 cu. decimeters = 35.31 feet

Approximate Conversion Factors

To change To Multiply by To change To Multiply by
inches centimeters 2.540 ounce--inches newton--meters .007062
feet meters .305 centimeters inches .394
yards meters .914 meters feet 3.280
miles kilometers 1.609 meters yards 1.094
square inches square centimeters 6.451 kilometers miles .621
square feet square meters .093 square centimeters square inches .155
square yards square meters .836 square meters square feet 10.764
square miles square kilometers 2.590 square meters square yards 1.196
acres square hectometers .405 square kilometers square miles .386
cubic feet cubic meters .028 square hectometers acres 2.471
cubic yards cubic meters .765 cubic meters cubic feet 35.315
fluid ounces milliliters 29.573 cubic meters cubic yards 1.308
pints liters .473 milliliters fluid ounces .034
quarts liters .946 liters pints 2.113
gallons liters 3.785 liters quarts 1.057
ounces grams 28.349 liters gallons .264
pounds kilograms .454 grams ounces .035
short tons metric tons .907 kilograms pounds 2.205
pound--feet newton--meters 1.356 metric tons short tons 1.102
pound--inches newton--meters .11296

Temperature (Exact)
_F Fahrenheit 5/9 (after Celsius _C
temperature subtracting 32) temperature
PIN: 064909-000