Model 525A Maintenance Manual (Rev 20)

(Rev 20)

REVISION SUMMARY/HIGHLIGHTS
1. General
A. This section contains a table that gives operators and maintenance personnel a list of the changes that were made to
documents in the latest revision of this manual.
B. Copies of this document may be retained for reference.
2. Definition
A. Columns
(1) Chapter-Section-Subject - This column gives the manual location for each document in the revision.
(2) Document Title - This column gives the name of the document as it is given at the top of the actual document and in the
Table of Contents.
(3) Action - This column gives a short description of the changes that have been made to each document in this revision.
B. Rows
(1) Each row gives all the necessary data for one document that is part of the current revision.
3. Revision Incorporation Procedures
A. Interactive Electronic Manual
(1) Interactive Electronic formats of this manual are automatically updated. No additional actions are required to incorporate
the revised documents.
B. Paper Copies
(1) For instructions on how to incorporate revised material in a paper copy of the manual, refer to the Introduction, Revision
Filing Instructions.
(2) This document can help identify changes in each document but does not supersede the information in the List of Effective
Pages for each chapter.
NOTE: For information about document page numbers, refer to Introduction, Page Numbering System.
Also, pages 1 - 99 are used for both "General", and "Description And Operation" documents.
C. Revision Highlights
CHAPTER
SECTION DOCUMENT TITLE ACTION
SUBJECT
Introduction PUBLICATION TITLE PAGE • Updated for latest revision.

• Updated for current revision and updated the front matter to a

Introduction REVISION SUMMARY/HIGHLIGHTS
standard template.

Introduction LIST OF EFFECTIVE PAGES • Revised page dates.

Introduction TABLE OF CONTENTS • Revised date and page numbers.

INSPECTION PROGRAM CHANGE • Reformatted section to be the last IPC Sum. Content is now
Introduction
SUMMARY included in Revision Summary/Highlights.

Introduction LIST OF REVISIONS • Updated LOR date for current revision.

• Updated Customer Support and Structural Repair email

addresses.
• Replaced Cessna Aircraft Company with Textron Aviation Inc.
Introduction INTRODUCTION throughout section.
• Added Caution for HIRF (Tolerance to PED's).
• Standardized Introduction sections for Citation Models.
Updated section to new standard.

Copyright © Textron Aviation Inc. Page 1 of 30

Retain printed data for historical reference only. For future maintenance, use only current data. Print Date: Thu Feb 16 07:18:04 CST 2023
 Model 525A Maintenance Manual (Rev 20)
(Rev 20)

Introduction SERVICE BULLETIN LIST • Updated the SB list for the current revision.

Introduction ICA SUPPLEMENT LIST • Updated ICA List for the current revision.

• Updated hydraulic manifolds 9912423-26, -40, and -42 vendor

manuals.
Introduction SUPPLIER PUBLICATION LIST • Added Chapter 33 Emergency Light Battery supplier manuals.
• Added vendor details for the Hydraulic Manifold Assembly
(9912423-52).

Chapter 4 LIST OF EFFECTIVE PAGES • Revised page dates.

Chapter 4 TABLE OF CONTENTS • Revised date and page numbers.

• Revised this section to provide the required information for the

4-00-00 AIRWORTHINESS LIMITATIONS
reformatted Chapter 4 Inspection Program.

• Deleted Document. Contents of this section are now located in

4-10-00 INSPECTION TIME LIMITS
Chapter 4-10-01.

• Created this document with the inspections formerly found in

Chapter 4-10-00 and 4-11-00.
• Added Inspection Task Numbers to all required inspections.
• Removed Item Codes from each of the required inspections.
• Moved the contents of Chapter 4-11-00 to Table 3 of this
document and added Task Numbers for life-limited parts.
• Updated Task Titles to indicate the type of inspection required.
• Combined Forward Engine Mount Forward Channel Web with
AIRWORTHINESS LIMITATIONS
4-10-01 Forward Engine Mount Aft Channel Web, and renamed
INSPECTION TIME LIMITS
Forward Engine Mount Forward and Aft Channel Webs (Eddy
Current) Special Detailed Inspection (Airplanes -0001 Thru -
0299). Changed from 15,000 Hour to 12,000 Hours, then Every
8000 hours Thereafter.
• Deleted Forward Engine Beam At Attachment To Fuselage,
Aft Engine Beam At Attachment To Fuselage, and Aft Engine
Mount 15,000 Hour inspections for Airplanes -0001 Thru -
0299.
AIRWORTHINESS LIMITATIONS
• Created this document with the inspections formerly found in
4-10-02 INSPECTION TIME LIMITS
Chapter 4-11-03.
(RUSSIAN-CERTIFIED AIRPLANES)
• Deleted Document. Contents of this section are now located in
4-11-00 REPLACEMENT TIME LIMITS
Chapter 4-10-01, Table 3.

RUSSIAN-CERTIFIED AIRPLANES • Deleted Document. Contents of this section are now located in
4-11-03
REPLACEMENT TIME LIMITS Chapter 4-10-02, Table 1.
AIRWORTHINESS LIMITATIONS
4-12-00 INSPECTION DOCUMENTS • Created this document for the new Chapter 4 format.

AIRWORTHINESS LIMITATIONS
4-12-01 INSPECTION DOCUMENTS • Created this document for the new Chapter 4 format.
(RUSSIAN-CERTIFIED AIRPLANES)
4-12-MA INSPECTION DOCUMENT MA • New Inspection Document for the 300 Hour Inspection Tasks.

4-12-MC INSPECTION DOCUMENT MC • New Inspection Document for the 1200 Hour Inspection Tasks.

Copyright © Textron Aviation Inc. Page 2 of 30

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 Model 525A Maintenance Manual (Rev 20)
(Rev 20)

4-12-MD INSPECTION DOCUMENT MD • New Inspection Document for the 1425 Hour Inspection Tasks.

• New Inspection Document for the 5000 Landings and every

4-12-ME INSPECTION DOCUMENT ME
1000 Landings thereafter Inspection Tasks.

4-12-MF INSPECTION DOCUMENT MF • New Inspection Document for the 2550 Hour Inspection Tasks.

4-12-MG INSPECTION DOCUMENT MG • New Inspection Document for the 2800 Hour Inspection Tasks.

4-12-MH INSPECTION DOCUMENT MH • New Inspection Document for the 3100 Hour Inspection Tasks.

4-12-MI INSPECTION DOCUMENT MI • New Inspection Document for the 4950 Hour Inspection Tasks.

4-12-MJ INSPECTION DOCUMENT MJ • New Inspection Document for the 5000 Hour Inspection Tasks.

4-12-MK INSPECTION DOCUMENT MK • New Inspection Document for the 5050 Hour Inspection Tasks.

• New Inspection Document for the 5050 Hours, then Every 3000
4-12-ML INSPECTION DOCUMENT ML
Hours Thereafter Inspection Tasks.

4-12-MM INSPECTION DOCUMENT MM • New Inspection Document for the 6000 Hour Inspection Tasks.

• New Inspection Document for the 330 Hour / 12 Month

4-12-MN INSPECTION DOCUMENT MN
Inspection Tasks.

4-12-MO INSPECTION DOCUMENT MO • New Inspection Document for the 5300 Hour Inspection Tasks.

• New Inspection Document for the 15,000 Hours, Then Every

4-12-MP INSPECTION DOCUMENT MP
1600 Hours Thereafter Inspection Tasks.

• New Inspection Document for the 11,250 Hour Inspection

4-12-MQ INSPECTION DOCUMENT MQ Tasks.

• New Inspection Document for the 11,400 Hour Inspection

4-12-MR INSPECTION DOCUMENT MR
Tasks.

• New Inspection Document for the 12,000 Hour Inspection

4-12-MS INSPECTION DOCUMENT MS
Tasks.

• New Inspection Document for the 12,000 Hours, Then Every

4-12-MT INSPECTION DOCUMENT MT
8000 Hours Thereafter Inspection Tasks.

• New Inspection Document for the 13,000 Hour Inspection

4-12-MU INSPECTION DOCUMENT MU
Tasks.

• New Inspection Document for the 14,000 Hour Inspection

4-12-MV INSPECTION DOCUMENT MV
Tasks.

• New Inspection Document for the 15,000 Hour Inspection

4-12-MW INSPECTION DOCUMENT MW
Tasks.

• New Inspection Document for the 15,000 Hours, Then Every

4-12-MX INSPECTION DOCUMENT MX
2400 Hours Thereafter Inspection Tasks.

Chapter 5 LIST OF EFFECTIVE PAGES • Revised page dates.

Chapter 5 TABLE OF CONTENTS • Revised date and page numbers.

Copyright © Textron Aviation Inc. Page 3 of 30

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 Model 525A Maintenance Manual (Rev 20)
(Rev 20)

• Added "Not currently used" to Inspection Documents 4, 5, 7,

15, and 25 intervals.
• Removed "A" hourly and "C" Calender intervals from section
5-10-00 INSPECTIONS (1A/2C etc).
• Deleted Inspection Documents MA through MP and moved
them to the appropriate Chapter 4 Inspection Document.
• Added Task Type Definitions to section.

• Updated section to reflect changes made to the inspection

5-10-01 INSPECTION TIME LIMITS
documents in this revision.

• Added Service life as 8 years to AE13083-5.

• Deleted Note (CH 36): Replacement interval extensions are
permitted for the bleed air precoolers in accordance with the
instructions contained in the latest revision of SL525A-05-02.
• Clarified note for cylinders with DOT rating of DOT3FC1850,
DOT-E8162, or DOT-SP-8162 that service life can be
extended at years 15 and 18, but must be discarded at year
5-11-00 COMPONENTS TIME LIMITS
20.
• Added the Chapter 33, Emergency Lighting Battery Pack
Restoration requirement to this document.
• Updated the word "Restoration" to "Inspection" throughout all
tasks related to engine mount assembly and isolator.
• Reformatted paragraphs for different ATAs into one table to
include all component time limit tasks.

• Added information for the inspections completed outside of

allowable tolerance and TXTAV Maintenance Engineering
contact information to the Inspection Time Limitations.
CONTINUOUS INSPECTION • Added Regulatory (DOT) and Engine Inspection items to the
5-12-00
PROGRAM extension restriction on Chapter 4.
• Replaced outdated content for CD ROM with 1View
information and replaced logbook information with
Maintenance Tracking and Task Findings Reporting.

5-12-01 INSPECTION DOCUMENT 1 • Removed 1A from interval (Paragraph 1.A.).

• Removed 1C from interval (Paragraph 1.A.) .

• Added Item Code C522001, Task 52-20-00-640 to Inspection
Document.
• Added Item Code C270002, Task 12-21-01-641 to Inspection
Document.
• Updated Task 24-34-00-720, Task 24-34-00-763, Task 26-22-
00-61, Task 34-21-00-710 titles to standard naming format
5-12-02 INSPECTION DOCUMENT 2
• Updated Task 34-50-06-720 to Task 34-50-06-721 and added
(Philippines Certified Airplanes Only)
• Added Item Code B335002, Task 33-50-00-720 to Inspection
Document.
• Combined Item Codes C271001, 272001, 273001 into Item
Code C270001, Task 12-21-01-640, them moved it from Insp
Doc 8 to this location.

5-12-03 INSPECTION DOCUMENT 3 • Removed 2C from interval (Paragraph 1.A.) .

Copyright © Textron Aviation Inc. Page 4 of 30

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 Model 525A Maintenance Manual (Rev 20)
(Rev 20)

• Moved Item Code A323101, Task 32-31-03-780 Emergency

Pneumatic Storage Bottle (Hydrostatic Test) Functional Check
5-12-04 INSPECTION DOCUMENT 4 from this document and added it to 5-11-00 Component Time
Limits.
• This Inspection Document is permanently deleted.

• Moved Item Code B262002, Task 26-20-00-961 Engine Fire

Extinguisher Bottles (Hydrostatic Test) Functional Check from
5-12-05 INSPECTION DOCUMENT 5 this document and added it to 5-11-00 Component Time
Limits.
• This Inspection Document is permanently deleted.

• Removed 6C from interval (Paragraph 1.A.).

5-12-06 INSPECTION DOCUMENT 6
• Updated Task 26-22-00-610 title to standard naming format.

• Moved Item Code B262202, Task 26-22-00-961 Portable Fire

Extinguisher (Hydrostatic Test) Functional Check from this
5-12-07 INSPECTION DOCUMENT 7
document and added it to 5-11-00 Component Time Limits.
• This Inspection Document is permanently deleted.

• Removed 1A/2C from interval (Paragraph 1.A.).

• Combined Item Codes C271001, 272001, 273001 into Item
5-12-08 INSPECTION DOCUMENT 8 Code C270001, Task 12-21-01-640, them moved it to Insp
Doc 2.
• Updated Task 53-10-01-760 title to standard naming format.

• Removed 2A/1C from interval (Paragraph 1.A.).

5-12-09 INSPECTION DOCUMENT 9
• Updated Task 24-33-00-720 title to standard naming format.

• Removed 4A/3C from interval (Paragraph 1.A.).

• Removed Item Code C522001, Task 52-20-00-640 from
Inspection Document.
• Deleted Task 27-00-01-210, Item Code A270001 (Aileron
Trim Actuator Inspection (Without Grease Fittings)) from this
inspection doc.
• Added Item Code A531015, Task 53-10-05-252 to this
document.
5-12-10 INSPECTION DOCUMENT 10
• Updated Task 32-00-00-210, 34-20-01-720, 53-00-00-210,
53-00-00-212, 53-00-00-213, 53-00-00-214, 54-00-00-210,
57-00-00-210 titles to standard naming format.
• Updated Task 32-42-04-960 title to match inspection title in
Chapter 32.
• Changed Task 33-50-00-720 Emergency Lighting System
Functional Check to Task 33-50-00-710 Emergency Lighting
System Operational Check.

• Removed 8A/6C from interval (Paragraph 1.A.).

• Updated Task 53-00-01-250 Title to FUSELAGE SKIN JOINT
(EDDY CURRENT OR MAGNETO-OPTICS) SPECIAL
5-12-11 INSPECTION DOCUMENT 11
DETAILED INSPECTION.
• Updated Windshield Optical (Prism) Special Detailed
Inspection Task # from 56-10-00-281 to 56-10-00-282.

5-12-13 INSPECTION DOCUMENT 13 • Updated Task 34-50-06-720 title to standard naming format.

Copyright © Textron Aviation Inc. Page 5 of 30

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 Model 525A Maintenance Manual (Rev 20)
(Rev 20)

5-12-12 INSPECTION DOCUMENT 12 • Updated Task 25-60-00-210 title to standard naming format.

• Deleted item code A510001 which was only item in section.

5-12-15 INSPECTION DOCUMENT 15
This Inspection Document is permanently deleted.

5-12-17 INSPECTION DOCUMENT 17 • Updated Task 24-32-00-720 title to standard naming format.

• Updated Task 53-00-00-211 title to standard naming format.

5-12-19 INSPECTION DOCUMENT 19
• Added Task 71-20-00-220 to inspection document.

5-12-21 INSPECTION DOCUMENT 21 • Removed 2A/2C from interval (Paragraph 1.A.).

5-12-24 INSPECTION DOCUMENT 24 • Removed 1A/1C from interval (Paragraph 1.A.).

• Removed Item Code A712000, Task 71-20-00-210 Engine

5-12-25 INSPECTION DOCUMENT 25 Mount General Visual Inspection which was only item in
section. This Inspection Document is permanently deleted.

• Moved contents to Chapter 4, then deleted this inspection

5-12-MA INSPECTION DOCUMENT MA document.

• Moved contents to Chapter 4, then deleted this inspection

5-12-MC INSPECTION DOCUMENT MC
document.

• Moved contents to Chapter 4, then deleted this inspection

5-12-MD INSPECTION DOCUMENT MD
document.

• Moved contents to Chapter 4, then deleted this inspection

5-12-ME INSPECTION DOCUMENT ME
document.

• Moved contents to Chapter 4, then deleted this inspection

5-12-MF INSPECTION DOCUMENT MF
document.

• Moved contents to Chapter 4, then deleted this inspection

5-12-MG INSPECTION DOCUMENT MG
document.

• Moved contents to Chapter 4, then deleted this inspection

5-12-MH INSPECTION DOCUMENT MH
document.

• Moved contents to Chapter 4, then deleted this inspection

5-12-MI INSPECTION DOCUMENT MI
document.

• Moved contents to Chapter 4, then deleted this inspection

5-12-MJ INSPECTION DOCUMENT MJ
document.

• Moved contents to Chapter 4, then deleted this inspection

5-12-MK INSPECTION DOCUMENT MK
document.

• Moved contents to Chapter 4, then deleted this inspection

5-12-ML INSPECTION DOCUMENT ML
document.

• Moved contents to Chapter 4, then deleted this inspection

5-12-MM INSPECTION DOCUMENT MM
document.

• Moved contents to Chapter 4, then deleted this inspection

5-12-MN INSPECTION DOCUMENT MN
document.

Copyright © Textron Aviation Inc. Page 6 of 30

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 Model 525A Maintenance Manual (Rev 20)
(Rev 20)

• Moved contents to Chapter 4, then deleted this inspection

5-12-MO INSPECTION DOCUMENT MO
document.

• Moved contents to Chapter 4, then deleted this inspection

5-12-MP INSPECTION DOCUMENT MP
document.

5-19-00 DISCRETIONARY MAINTENANCE • Created pageblock for discretionary maintenance tasks.

• Added 2.G.,H.;9.,10.
UNSCHEDULED MAINTENANCE
5-50-00 • Updated Chapter-20 reference to Standard Practices Manual
CHECKS
reference.

Chapter 6 LIST OF EFFECTIVE PAGES • Revised page dates.

Chapter 6 TABLE OF CONTENTS • Revised date and page numbers.

AIRPLANE LOCATIONS - • Updated location images with more structurally detailed

6-20-00
DESCRIPTION AND OPERATION images. Also updated pageblock to be more standardized.
ACCESS PLATES AND PANELS
6-20-02 IDENTIFICATION - DESCRIPTION • Removed serialization note from Table 1 for 411AT/412AT.
AND OPERATION
Chapter 7 LIST OF EFFECTIVE PAGES • Revised page dates.

Chapter 7 TABLE OF CONTENTS • Revised date and page numbers.

7-00-00 LIFTING AND SHORING - GENERAL • Added 02-7836C0110 Axle Jack to the Tools and Equipment

Chapter 10 LIST OF EFFECTIVE PAGES • Revised page dates.

Chapter 10 TABLE OF CONTENTS • Revised date and page numbers.

• Added microbe fuel testing requirements for long term storage

instructions in 5.B and 6.B
STORAGE - MAINTENANCE
10-10-10 • Revised the requirements for the removal and maintenance of
PRACTICES
the sealed lead acid and Ni-Cad battery for each of the storage
intervals.

Chapter 12 LIST OF EFFECTIVE PAGES • Revised page dates.

Chapter 12 TABLE OF CONTENTS • Revised date and page numbers.

• Deleted "Type of Fuel" Table and added para 2.D to refer to

REPLENISHING - DESCRIPTION AFM..
12-10-00
AND OPERATION • Added note in "Engine Oil Replenishment" table to refer to
AFM.

• Revised document for fuel contamination update from

12-11-01 FUEL - SERVICING
engineering.

• Updated Chapter-20 reference to Standard Practices Manual

12-12-02 BRAKE RESERVOIR - SERVICING
reference.

PNEUMATIC SYSTEMS - • Updated Chapter-20 reference to Standard Practices Manual

12-13-00
DESCRIPTION AND OPERATION reference.

Copyright © Textron Aviation Inc. Page 7 of 30

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 Model 525A Maintenance Manual (Rev 20)
(Rev 20)

LANDING GEAR AND BRAKE • Updated Chapter-20 reference to Standard Practices Manual
12-13-01
PNEUMATIC SYSTEM - SERVICING reference.

BRAKE ACCUMULATOR - • Added step to engage SKID CONTROL circuit breaker

12-13-02
SERVICING (HC071).

LANDING GEAR SHOCK - • Updated Chapter-20 reference to Standard Practices Manual

12-14-00
SERVICING reference.
VAPOR CYCLE COOLING -
12-19-01 SERVICING • Revised the note

LUBRICANTS - DESCRIPTION AND • Added Type II to MIL-PRF-23827C and Caution to not mix
12-21-00
OPERATION Type I with Type II.

• Separated Trim Tab Actuator Lube into Task 12-21-01-640

(Without Grease Fittings) and Task 12-21-01-641 (With
Grease Fittings).
12-21-01 FLIGHT CONTROLS - SERVICING • Deleted the step that used the grease 5565450-28 to lubricate
the actuator loop chain and made the lubrication step that uses
the dry film lubricant (Molykote 321R) applicable to all the trim
tab actuators.

• Added Steps to lubricate trailing link spacers with and without

12-21-02 LANDING GEAR - SERVICING
zerk fittings.

• Deleted figure 201 sheet 2 for standardization.

AIRPLANE WASH/RINSE -
12-26-00 • Revised Airplane Wash Procedures: Added tasks 12-26-00-
MAINTENANCE PRACTICES
601, 12-26-00-602, and 12-26-00-603.

AIRPLANE EXTERIOR POLISHING - • The contents of this document were moved to the Citation
12-26-01
MAINTENANCE PRACTICES Standard Practices Manual.

Chapter 20 LIST OF EFFECTIVE PAGES • Revised page dates.

Chapter 20 TABLE OF CONTENTS • Revised date and page numbers.

STANDARD PRACTICES • Updated document to indicate all Chapter 20 documents have

20-00-00
AIRFRAME - GENERAL moved to the Citation Standard Practices Manual.
STANDARD PRACTICES
• The contents of this document were moved to the Citation
20-00-00 AIRFRAME - MAINTENANCE
Standard Practices Manual.
PRACTICES
MATERIAL AND TOOL CAUTIONS - • The contents of this document were moved to the Citation
20-00-01
DESCRIPTION AND OPERATION Standard Practices Manual.

AIRPLANE HARDWARE - • The contents of this document were moved to the Citation
20-10-00
DESCRIPTION AND OPERATION Standard Practices Manual.

TORQUE DATA - MAINTENANCE • The contents of this document were moved to the Citation
20-10-01
PRACTICES Standard Practices Manual.

SAFETYING - MAINTENANCE • The contents of this document were moved to the Citation
20-10-02
PRACTICES Standard Practices Manual.

PACKINGS AND BACKUP RING - • The contents of this document were moved to the Citation
20-10-03
MAINTENANCE PRACTICES Standard Practices Manual.

Copyright © Textron Aviation Inc. Page 8 of 30

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 Model 525A Maintenance Manual (Rev 20)
(Rev 20)

CONTROL CABLES, SEALS AND

• The contents of this document were moved to the Citation
20-10-04 PULLEYS - MAINTENANCE
Standard Practices Manual.
PRACTICES
TUBE BENDING AND FLARING - • The contents of this document were moved to the Citation
20-10-05 MAINTENANCE PRACTICES Standard Practices Manual.

TUBING, HOSE AND FLUID

• The contents of this document were moved to the Citation
20-10-06 FITTINGS - MAINTENANCE
Standard Practices Manual.
PRACTICES
NON-FLARE FITTINGS AND NYLON
• The contents of this document were moved to the Citation
20-10-07 TUBING - MAINTENANCE
Standard Practices Manual.
PRACTICES
BEARINGS - • The contents of this document were moved to the Citation
20-10-08
REMOVAL/INSTALLATION Standard Practices Manual.

IDENTIFICATION TAPE - • The contents of this document were moved to the Citation
20-10-10
MAINTENANCE PRACTICES Standard Practices Manual.
TUBE BENDING CRITERIA AND
• The contents of this document were moved to the Citation
20-10-11 PERMASWAGING - MAINTENANCE
Standard Practices Manual.
PRACTICES
BLEED AIR COUPLINGS - • The contents of this document were moved to the Citation
20-10-12
MAINTENANCE PRACTICES Standard Practices Manual.

ELECTRONIC PRACTICES - • The contents of this document were moved to the Citation
20-20-00
DESCRIPTION AND OPERATION Standard Practices Manual.
ELECTRICAL SAFETY
• The contents of this document were moved to the Citation
20-20-01 PRECAUTIONS - DESCRIPTION
Standard Practices Manual.
AND OPERATION
ELECTROSTATIC DISCHARGE
• The contents of this document were moved to the Citation
20-20-05 COMPONENTS - MAINTENANCE
Standard Practices Manual.
PRACTICES
WIRE BUNDLE - MAINTENANCE • The contents of this document were moved to the Citation
20-21-01
PRACTICES Standard Practices Manual.

ELECTRICAL BONDING - • The contents of this document were moved to the Citation
20-21-02
MAINTENANCE PRACTICES Standard Practices Manual.
ELECTRICAL COMPONENTS
• The contents of this document were moved to the Citation
20-21-03 INSPECTION - MAINTENANCE
Standard Practices Manual.
PRACTICES
HIGH INTENSITY RADIATED
• The contents of this document were moved to the Citation
20-21-04 FIELDS (HIRF) -
Standard Practices Manual.
INSPECTION/CHECK
SOLVENTS, SEALANTS AND
• The contents of this document were moved to the Citation
20-30-00 ADHESIVES - DESCRIPTION AND
Standard Practices Manual.
OPERATION

Copyright © Textron Aviation Inc. Page 9 of 30

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 Model 525A Maintenance Manual (Rev 20)
(Rev 20)

GENERAL SOLVENTS - • The contents of this document were moved to the Citation
20-31-00
MAINTENANCE PRACTICES Standard Practices Manual.
FUEL, WEATHER, PRESSURE
AND HIGH TEMPERATURE • The contents of this document were moved to the Citation
20-32-00 SEALING - MAINTENANCE Standard Practices Manual.
PRACTICES

ADHESIVE AND SOLVENT

• The contents of this document were moved to the Citation
20-32-01 BONDING - MAINTENANCE
Standard Practices Manual.
PRACTICES
ADHESIVES, CEMENTS AND
SEALANTS SHELF LIFE AND • The contents of this document were moved to the Citation
20-32-03
STORAGE - DESCRIPTION AND Standard Practices Manual.
OPERATION
EXTERIOR FINISH - • The contents of this document were moved to the Citation
20-33-00
CLEANING/PAINTING Standard Practices Manual.

EXTERIOR FINISH PAINT • The contents of this document were moved to the Citation
20-33-01
THICKNESS - CLEANING/PAINTING Standard Practices Manual.

INTERIOR FINISH - • The contents of this document were moved to the Citation
20-34-00
CLEANING/PAINTING Standard Practices Manual.

Chapter 21 LIST OF EFFECTIVE PAGES • Revised page dates.

Chapter 21 TABLE OF CONTENTS • Revised date and page numbers.

COMPRESSION - MAINTENANCE • Updated Chapter-20 reference to Standard Practices Manual

21-10-00
PRACTICES reference.

• Serialized the emergency pressurization valve ops check, then

COMPRESSION - duplicated it and serialized the duplicate and modified it to
21-10-00
INSPECTION/CHECK remove the instructions with the landing gear squat switch
breakout boxes.

AIR DISTRIBUTION - • Updated Chapter-20 reference to Standard Practices Manual

21-20-00
MAINTENANCE PRACTICES reference.

• Updated Chapter-20 reference to Standard Practices Manual

PRESSURIZATION CONTROL - reference.
21-30-00
MAINTENANCE PRACTICES • Corrected the figure number reference for the aft baggage
compartment panel (321A) in the entire pageblock.

CABIN ALTITUDE PRESSURE • Updated Chapter-20 reference to Standard Practices Manual

21-31-00
SWITCH - INSPECTION/CHECK reference.

HEATING - MAINTENANCE • Updated Chapter-20 reference to Standard Practices Manual

21-40-00
PRACTICES reference.

• Updated Chapter-20 reference to Standard Practices Manual

AIR CONDITIONING SYSTEM -
21-50-00 reference.
MAINTENANCE PRACTICES
• Added Compressor Drive Motor Brushes Removal/Installation.

AIR CONDITIONING SYSTEM - • Added Task 21-50-00-960 Compressor Drive Motor Brushes
21-50-00
INSPECTION/CHECK Discard.

Copyright © Textron Aviation Inc. Page 10 of 30

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 Model 525A Maintenance Manual (Rev 20)
(Rev 20)

TEMPERATURE CONTROL -
21-60-00 • Updated 5.A.(4) cabin temperature controller (UT017) location.
MAINTENANCE PRACTICES
Chapter 22 LIST OF EFFECTIVE PAGES • Revised page dates.

Chapter 22 TABLE OF CONTENTS • Revised date and page numbers.

AUTOPILOT SERVO - • Updated Chapter-20 reference to Standard Practices Manual

22-10-00
MAINTENANCE PRACTICES reference.

Chapter 23 LIST OF EFFECTIVE PAGES • Revised page dates.

Chapter 23 TABLE OF CONTENTS • Revised date and page numbers.

HONEYWELL KHF-950 HF
• Updated Chapter-20 reference to Standard Practices Manual
23-10-00 COMMUNICATION SYSTEM -
reference.
MAINTENANCE PRACTICES
• Updated Chapter-20 reference to Standard Practices Manual
HONEYWELL KY-196A/B VHF reference.
23-10-01 COMMUNICATION SYSTEM - • Added the step for the R/I of the polyurethane gasket.
MAINTENANCE PRACTICES • Added serialization for the communication antenna
removal/installation procedure.
AERO-M AIRBORNE SATELLITE
• Updated Chapter-20 reference to Standard Practices Manual
23-10-02 TELECOMMUNICATIONS SYSTEM -
reference.
MAINTENANCE PRACTICES
AIRCELL ATG 5000 HIGH SPEED
• Updated Chapter-20 reference to Standard Practices Manual
23-10-03 INTERNET - MAINTENANCE
reference.
PRACTICES
COLLINS HF-9000
• Updated Chapter-20 reference to Standard Practices Manual
23-10-10 COMMUNICATION SYSTEM -
reference.
MAINTENANCE PRACTICES
• Updated Chapter-20 reference to Standard Practices Manual
COLLINS VHF-4000
reference.
23-20-00 COMMUNICATION SYSTEM -
• Added serialization for the communication antenna
MAINTENANCE PRACTICES
removal/installation procedure.
COLLINS OPTIONAL INTERACTIVE
• Updated Chapter-20 reference to Standard Practices Manual
23-20-01 GRAPHICAL WEATHER SYSTEM -
reference.
MAINTENANCE PRACTICES
STATIC DISCHARGER (WICK) - • Updated Chapter-20 reference to Standard Practices Manual
23-60-00
MAINTENANCE PRACTICES reference.

STATIC DISCHARGER (WICK) - • Updated Chapter-20 reference to Standard Practices Manual

23-60-00
ADJUSTMENT/TEST reference and changed Cessna reference to Textron.
PRECIPITATION STATIC
• Updated Chapter-20 reference to Standard Practices Manual
23-60-01 DISCHARGING -
reference.
ADJUSTMENT/TEST
L3 COMMUNICATIONS A200S • Updated Chapter-20 reference to Standard Practices Manual
23-71-00 COCKPIT VOICE RECORDER - reference.
MAINTENANCE PRACTICES

Copyright © Textron Aviation Inc. Page 11 of 30

Retain printed data for historical reference only. For future maintenance, use only current data. Print Date: Thu Feb 16 07:18:04 CST 2023
 Model 525A Maintenance Manual (Rev 20)
(Rev 20)

L3 COMMUNICATIONS FA2100
• Updated Chapter-20 reference to Standard Practices Manual
23-71-01 COCKPIT VOICE RECORDER -
reference.
MAINTENANCE PRACTICES
GARMIN GNS-530A INTEGRATED
• Added information regarding the WAAS enabled navigation
23-80-00 RADIO SYSTEM - DESCRIPTION
radio and antenna to the Component Description section.
AND OPERATION
• Updated Chapter-20 reference to Standard Practices Manual
GARMIN GNS-530A INTEGRATED reference.
23-80-00 RADIO SYSTEM - MAINTENANCE • Added the step for the R/I of the polyurethane gasket.
PRACTICES • Added information regarding the WAAS enabled navigation
radio and antenna.

Chapter 24 LIST OF EFFECTIVE PAGES • Revised page dates.

Chapter 24 TABLE OF CONTENTS • Revised date and page numbers.

• Updated Chapter-20 reference to Standard Practices Manual

24-00-00 ELECTRICAL POWER - GENERAL
reference.

NICKEL-CADMIUM BATTERY - • Updated Chapter-20 reference to Standard Practices Manual

24-32-00
MAINTENANCE PRACTICES reference.

• Updated Chapter-20 reference to Standard Practices Manual

NICKEL-CADMIUM BATTERY -
24-32-00 reference.
INSPECTION/CHECK
• Updated Task 720 title to standard naming format.

SEALED LEAD ACID BATTERY - • Updated Chapter-20 reference to Standard Practices Manual
24-33-00
MAINTENANCE PRACTICES reference.

• Updated Chapter-20 reference to Standard Practices Manual

SEALED LEAD ACID BATTERY -
24-33-00 reference.
INSPECTION/CHECK
• Updated Task 720 title to standard naming format.
STANDBY BATTERY -
24-34-00 • Updated standby battery pack installation.
MAINTENANCE PRACTICES
• Task 720 - Updated the switch name and added a step to
engage the STBY BATT CHARGE circuit breaker at the end of
STANDBY BATTERY -
24-34-00 the procedure.
INSPECTION/CHECK
• Updated Task 720 and Task 763 titles to standard naming
format.
PRINTED CIRCUIT BOARD
• Updated Chapter-20 reference to Standard Practices Manual
24-60-02 JUNCTION BOXES -
reference.
MAINTENANCE PRACTICES
Chapter 25 LIST OF EFFECTIVE PAGES • Revised page dates.

Chapter 25 TABLE OF CONTENTS • Revised date and page numbers.

CONTROL WHEEL TRIM - • Updated Chapter-20 reference to Standard Practices Manual

25-12-10 MAINTENANCE PRACTICES reference.

PASSENGER COMPARTMENT
• Updated Chapter-20 reference to Standard Practices Manual
25-20-05 OVERHEAD ASSEMBLY -
reference.
MAINTENANCE PRACTICES

Copyright © Textron Aviation Inc. Page 12 of 30

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 Model 525A Maintenance Manual (Rev 20)
(Rev 20)

HEADLINER AND SIDEWALL - • Updated Chapter-20 reference to Standard Practices Manual

25-20-07
MAINTENANCE PRACTICES reference.
AFT ELECTRICAL CABINET -
25-20-10 • Para 4.A. Added warning about landing gear wiring.
MAINTENANCE PRACTICES
• Updated Task 210 title to standard naming format.
EMERGENCY EQUIPMENT -
25-60-00 • Added Task 25-60-00-960 Emergency Locator Transmitter
INSPECTION/CHECK
Battery Discard.

ARTEX ELT 110-4 EMERGENCY • Updated Chapter-20 reference to Standard Practices Manual
25-60-01 LOCATOR TRANSMITTER SYSTEM reference.
- MAINTENANCE PRACTICES • Added the step for the R/I of the polyurethane gasket.

ARTEX C406-2 EMERGENCY • Updated Chapter-20 reference to Standard Practices Manual

25-60-02 LOCATOR TRANSMITTER SYSTEM reference.
- MAINTENANCE PRACTICES • Added the step for the R/I of the polyurethane gasket.

ARTEX ELT C406-N EMERGENCY • Updated Chapter-20 reference to Standard Practices Manual
25-60-03 LOCATOR TRANSMITTER SYSTEM reference.
- MAINTENANCE PRACTICES • Added the step for the R/I of the polyurethane gasket.

Chapter 26 LIST OF EFFECTIVE PAGES • Revised page dates.

Chapter 26 TABLE OF CONTENTS • Revised date and page numbers.

ENGINE FIRE DETECTION SYSTEM • Updated Chapter-20 reference to Standard Practices Manual
26-10-00
- REMOVAL/INSTALLATION reference.

ENGINE FIRE EXTINGUISHING - • Updated Chapter-20 reference to Standard Practices Manual

26-20-00
MAINTENANCE PRACTICES reference.

• Updated Task 961 title to standard naming format.

ENGINE FIRE EXTINGUISHING -
26-20-00 • Added Task 26-20-00-962 Engine Fire Extinguisher Bottle
INSPECTION/CHECK
Cartridge Discard.

PORTABLE FIRE EXTINGUISHER - • Revised Halon Type 1211 to read as an approved

26-22-00
MAINTENANCE PRACTICES extinguishing agent.

PORTABLE FIRE EXTINGUISHER - • Updated Tasks 610, 720, and 961 titles to standard naming
26-22-00
INSPECTION/CHECK format.
PORTABLE FIRE EXTINGUISHER
(FRENCH CERTIFIED AIRPLANES • Revised Halon Type 1211 to read as an approved
26-22-01
ONLY) - MAINTENANCE extinguishing agent.
PRACTICES
Chapter 27 LIST OF EFFECTIVE PAGES • Revised page dates.

Chapter 27 TABLE OF CONTENTS • Revised date and page numbers.

FLIGHT CONTROLS TRIM TAB
• Deleted Task 210, This Inspection Document is permanently
27-00-01 ACTUATORS -
deleted.
INSPECTION/CHECK

Copyright © Textron Aviation Inc. Page 13 of 30

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 Model 525A Maintenance Manual (Rev 20)
(Rev 20)

• Updated Chapter-20 reference to Standard Practices Manual

reference.
AILERON AND TAB SYSTEM - • Editorial change to External Figure references in para 3.B.(5).
27-10-00
INSPECTION/CHECK • Added table number references for the serial range -0001 thru
-0408 in Aileron and Aileron Trim Control System Functional
Check procedure.

• Updated Chapter-20 reference to Standard Practices Manual

reference.
AILERON AND TAB SYSTEM
• Figure 201, Corrected callout of the aileron forward
27-10-01 CONTROL CABLES -
sychronizing cable and re-processed Figure to remove
MAINTENANCE PRACTICES
borders.
• Re-Processed Figures 202 thru 206 to remove borders.
AILERON AND TAB SYSTEM
• Updated Chapter-20 reference to Standard Practices Manual
27-10-01 CONTROL CABLES -
reference.
ADJUSTMENT/TEST
AILERON AND TAB SYSTEM
• Updated Chapter-20 reference to Standard Practices Manual
27-10-02 COMPONENTS -
reference.
REMOVAL/INSTALLATION
• Replaced Type X sealant with approved alternatives.
RUDDER AND TAB SYSTEM -
27-20-00 • Updated Chapter-20 reference to Standard Practices Manual
MAINTENANCE PRACTICES
reference.

RUDDER AND TAB SYSTEM - • Updated Chapter-20 reference to Standard Practices Manual
27-20-00
ADJUSTMENT/TEST reference.

RUDDER AND TAB SYSTEM - • Updated Chapter-20 reference to Standard Practices Manual
27-20-00
INSPECTION/CHECK reference.

RUDDER BIAS SYSTEM - • Updated Chapter-20 reference to Standard Practices Manual

27-20-01
MAINTENANCE PRACTICES reference.

ELEVATOR AND TAB SYSTEM - • Updated Chapter-20 reference to Standard Practices Manual
27-30-00
INSPECTION/CHECK reference.

ELEVATOR AND ELEVATOR TRIM • Replaced Type X sealant with approved alternatives.
27-30-01 SYSTEM CONTROL CABLES - • Updated Chapter-20 reference to Standard Practices Manual
MAINTENANCE PRACTICES reference.

• Updated Chapter-20 reference to Standard Practices Manual

ELEVATOR AND ELEVATOR TRIM reference.
27-30-01 SYSTEM CONTROL CABLES - • Editorial change to External Figure references in para 2.A.(14).
ADJUSTMENT/TEST (a).

ELEVATOR AND TAB SYSTEM

• Updated Chapter-20 reference to Standard Practices Manual
27-30-02 COMPONENTS -
reference.
REMOVAL/INSTALLATION
FLAP SYSTEM - MAINTENANCE • Step 7.B.(7) Corrected clevis position from between washer to
27-50-00
PRACTICES between bolt head.

Copyright © Textron Aviation Inc. Page 14 of 30

Retain printed data for historical reference only. For future maintenance, use only current data. Print Date: Thu Feb 16 07:18:04 CST 2023
 Model 525A Maintenance Manual (Rev 20)
(Rev 20)

• Revised 60 Degree Flap Position Select Switch and 60

Degree Flap Position Switch Adjustment.
FLAP SYSTEM - • Updated Chapter-20 reference to Standard Practices Manual
27-50-00
ADJUSTMENT/TEST reference.
• Editorial change to External Figure references throughout
section.

• Revised Flap Functional Check and added Test Box.

FLAP SYSTEM -
27-50-00 • Updated Chapter-20 reference to Standard Practices Manual
INSPECTION/CHECK
reference.

SPEED BRAKE SYSTEM - • Updated Chapter-20 reference to Standard Practices Manual

27-60-00
MAINTENANCE PRACTICES reference.

• Changed step 6.B.(9)(b) from 55 degrees to 60 degrees.

SPEED BRAKE SYSTEM - • Updated Chapter-20 reference to Standard Practices Manual
27-60-00
ADJUSTMENT/TEST reference.
• Revised the Speed Brake Automatic Extension test procedure.

• Updated Chapter-20 reference to Standard Practices Manual

reference.
• Changed the dimension value for the distance between the
CONTROL LOCK SYSTEM -
27-70-00 cable swage ball and the forward web at FS 172.70 and the
MAINTENANCE PRACTICES
dimension value for the distance between the cable tube and
forward face of slider assembly. Revised the cable swage ball
installation figure to show the correct dimensions.

• Revised the dimension value for the distance between the

CONTROL LOCK SYSTEM -
27-70-00 cable swage ball and the forward web at FS 172.70. Revised
ADJUSTMENT/TEST
the art to add this dimension value.

Chapter 28 LIST OF EFFECTIVE PAGES • Revised page dates.

Chapter 28 TABLE OF CONTENTS • Revised date and page numbers.

FUEL CONTAMINATION - • Revised document for fuel contamination update from

28-00-02
DESCRIPTION AND OPERATION engineering.

FUEL CONTAMINATION - • Revised document for fuel contamination update from

28-00-02
MAINTENANCE PRACTICES engineering.

FUEL CONTAMINATION - • Revised document for fuel contamination update from

28-00-02
INSPECTION/CHECK engineering.

FUEL STORAGE - DESCRIPTION • Updated Chapter-20 reference to Standard Practices Manual

28-10-00
AND OPERATION reference.

• Merged the former leak detection/repair page block (28-10-

FUEL STORAGE - MAINTENANCE 01_2) with this page block.
28-10-00
PRACTICES • Updated Chapter-20 reference to Standard Practices Manual
reference and changed Cessna reference to Textron.

• Made engineering comment corrections.

FUEL STORAGE -
28-10-00 • Updated Chapter-20 reference to Standard Practices Manual
INSPECTION/CHECK
reference.

Copyright © Textron Aviation Inc. Page 15 of 30

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 Model 525A Maintenance Manual (Rev 20)
(Rev 20)

INTEGRAL FUEL RESERVOIRS

28-10-01 (TANKS) - MAINTENANCE • Deleted Document. Contents now in 28-10-00_2.
PRACTICES
FUEL DISTRIBUTION - • Updated reference from section 281001_2 to 281000_2
28-20-00
ADJUSTMENT/TEST throughout section.

FUEL QUANTITY GAUGING • Deleted the steps for multimeter usage from Fuel Pressure
28-40-00
SYSTEM - INSPECTION/CHECK Switch Functional Check procedure.
FUEL INDICATING COMPONENTS -
28-40-01 • Added step to do functional test of the signal conditioner.
MAINTENANCE PRACTICES
LOW FUEL WARNING - • Revised the low fuel quantity value at which the anunciator light
28-40-02
MAINTENANCE PRACTICES will come on in the functional test procedure.

FUEL DISTRIBUTION - • Updated Chapter-20 reference to Standard Practices Manual

28-20-00
MAINTENANCE PRACTICES reference and changed Cessna reference to Textron.

Chapter 29 LIST OF EFFECTIVE PAGES • Revised page dates.

Chapter 29 TABLE OF CONTENTS • Revised date and page numbers.

• Updated Chapter-20 reference to Standard Practices Manual

reference.
MAIN HYDRAULIC POWER -
29-10-00 • Added a note to the engine driven hydraulic pump removal
MAINTENANCE PRACTICES
procedure to refer to the troubleshooting information in the
supplier manual for an engine-driven hydraulic pump failure.

Chapter 30 LIST OF EFFECTIVE PAGES • Revised page dates.

Chapter 30 TABLE OF CONTENTS • Revised date and page numbers.

AIRFOIL ANTI-ICE - MAINTENANCE • Updated Chapter-20 reference to Standard Practices Manual

30-10-00
PRACTICES reference.

ENGINE INLET ANTI-ICE - • Updated Chapter-20 reference to Standard Practices Manual

30-20-00
MAINTENANCE PRACTICES reference.
WINDOWS, WINDSHIELDS AND
DOORS ANTI-ICE - MAINTENANCE • Updated Chapter-20 reference to Standard Practices Manual
30-40-00 reference.
PRACTICES

HEATED DRAINS - MAINTENANCE • Updated Chapter-20 reference to Standard Practices Manual

30-70-00
PRACTICES reference.

Chapter 31 LIST OF EFFECTIVE PAGES • Revised page dates.

Chapter 31 TABLE OF CONTENTS • Revised date and page numbers.

ROTARY TEST SWITCH - • Updated Chapter-20 reference to Standard Practices Manual

31-10-01
MAINTENANCE PRACTICES reference.
AEROSPACE OPTICS SWITCHES -
31-10-02 • Corrected corrupted image in Figure 201.
MAINTENANCE PRACTICES
AIRCRAFT RECORDING SYSTEM - • Updated Chapter-20 reference to Standard Practices Manual
31-30-05
MAINTENANCE PRACTICES reference.

Copyright © Textron Aviation Inc. Page 16 of 30

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 Model 525A Maintenance Manual (Rev 20)
(Rev 20)

Chapter 32 LIST OF EFFECTIVE PAGES • Revised page dates.

Chapter 32 TABLE OF CONTENTS • Revised date and page numbers.

• Added Type I to MIL-PRF-23827C and Caution to not mix with

Type II.
32-00-00 LANDING GEAR - GENERAL
• Updated Chapter-20 reference to Standard Practices Manual
reference and changed Cessna reference to Textron.

• Updated emergency blowdown procedure (32-00-00-720).

• Updated Chapter-20 reference to Standard Practices Manual
reference.
• Updated information with link to Introduction to contact Textron
LANDING GEAR -
32-00-00 Aviation Customer Service, Structural Repair.
INSPECTION/CHECK
• Added a step to do the Landing Gear Auxiliary (Emergency)
Extension Pneumatic Tubes Flush after the Gear Blow Down
test.
• Updated Task 210 title to standard naming format.

• Replaced Type X sealant with approved alternatives.

• Updated Chapter 20 reference to Standard Practices Manual
MAIN LANDING GEAR - reference.
32-10-00
MAINTENANCE PRACTICES • Revised Section 3.B, steps (2) thru (19) to update sealant and
CIC application.
• Editorial change to External Figure references in para 3.A.(20).

• New task 32-20-00-960 Main Landing Gear Trunnion

Assembly Discard".
MAIN LANDING GEAR - • New task 32-20-00-961 "Trailing Link and Axle Assembly
32-10-00
INSPECTION/CHECK Discard".
• New task 32-20-00-962 "Main Landing Gear Oleo Assembly
Discard".

• Replaced Type X sealant with approved alternatives.

• Updated Chapter-20 reference to Standard Practices Manual

NOSE LANDING GEAR -
32-20-00 reference.
MAINTENANCE PRACTICES
• Added Functional Check of the Nose Landing Gear (NLG)
Uplock Roller.
• Editorial change to External Figure references in para 6.B.(4).
• New task 32-20-00-960 "Nose Landing Gear Strut Assembly
Discard".
NOSE LANDING GEAR -
32-20-00 • New task 32-20-00-961 "Nose Landing Gear Fork and Piston
INSPECTION/CHECK
Assembly Discard".
• Updated Task 250 Title to match Inspection Database.

NOSE LANDING GEAR SHIMMY • Replaced Type X sealant with approved alternatives.
32-20-01 DAMPER - MAINTENANCE • Updated Chapter-20 reference to Standard Practices Manual
PRACTICES reference.
LANDING GEAR EXTENSION AND
• Added the Landing Gear Auxiliary (Emergency) Extension
32-30-00 RETRACTION - MAINTENANCE
Pneumatic Tubes Flush procedure.
PRACTICES

Copyright © Textron Aviation Inc. Page 17 of 30

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 Model 525A Maintenance Manual (Rev 20)
(Rev 20)

• Updated Chapter-20 reference to Standard Practices Manual

LANDING GEAR EXTENSION AND
reference.
32-30-00 RETRACTION -
• Added step 4.A.(5) Set the flaps and the speed brakes to the
ADJUSTMENT/TEST
fully retracted position.

• Updated Chapter-20 reference to Standard Practices Manual

NOSE LANDING GEAR ACTUATOR reference.
32-31-01
- MAINTENANCE PRACTICES • Corrected cockpit floorboard access panel designations to
access the bolt that attaches the NLG actuator.

NOSE LANDING GEAR ACTUATOR • New task created "Nose Landing Gear Acutator Assembly
32-31-01
- INSPECTION/CHECK Discard".

• Updated Chapter-20 reference to Standard Practices Manual

MAIN LANDING GEAR ACTUATOR - reference.
32-31-02
MAINTENANCE PRACTICES • Added two washers to the MLG actuator bolt that attaches to
the sidebrace. Clarified shim washer stackup.

MAIN LANDING GEAR ACTUATOR - • New task created "Main Landing Gear Acutator Assembly
32-31-02
INSPECTION/CHECK Discard".
EMERGENCY (AUXILIARY) AIR
• Updated Chapter-20 reference to Standard Practices Manual
32-31-03 STORAGE BOTTLE -
reference.
MAINTENANCE PRACTICES
EMERGENCY (AUXILIARY) AIR • Updated Task 32-31-03-780 title to standard naming format.
32-31-03 STORAGE BOTTLE - • Added Task 32-31-03-960 Emergency Pneumatic Storage
INSPECTION/CHECK Bottle Discard.
LANDING GEAR UPLOCK
• Updated Chapter-20 reference to Standard Practices Manual
32-31-04 ASSEMBLIES - MAINTENANCE
reference.
PRACTICES
LANDING GEAR UPLOCK
32-31-04 ASSEMBLIES - • Step 3.C.(1) Corrected metric dimension from 13.5 to 13.2.
ADJUSTMENT/TEST

LANDING GEAR EMERGENCY

• Updated Chapter-20 reference to Standard Practices Manual
32-31-05 (AUXILIARY) CONTROL SYSTEMS -
reference.
MAINTENANCE PRACTICES
• Updated Chapter-20 reference to Standard Practices Manual
reference.
• To be consistent with other CJ models, added Caution before
Main Wheel Installation Step 3.B.(1) to make sure left and right
WHEELS - MAINTENANCE
32-41-00 main tires are of the same manufacturer.
PRACTICES
• Added steps to safety wire the screws for the transducer and
hubcap during the main gear wheel installation.
• Revised the nose wheel valve stem torque in para 6.B.(8) from
180-200 inch pounds to 28 inch pounds.

ANTISKID BRAKE SYSTEM - • Updated Chapter-20 reference to Standard Practices Manual

32-42-00
MAINTENANCE PRACTICES reference.

ANTISKID BRAKE SYSTEM - • Updated Chapter-20 reference to Standard Practices Manual

32-42-00
ADJUSTMENT/TEST reference.

Copyright © Textron Aviation Inc. Page 18 of 30

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 Model 525A Maintenance Manual (Rev 20)
(Rev 20)

• Added steps to 2.B to verify the amber PWR BRAKES LOW

ANTISKID BRAKE SYSTEM -
32-42-00 PRESSURE annunciator indicates when the accumulator
INSPECTION/CHECK
pressure is at pre-charge pressure.

• Removed former paragraph 3.B.(8) "Do a slow cycle test."

MAIN LANDING GEAR BRAKES -
32-42-01 • Updated Chapter-20 reference to Standard Practices Manual
MAINTENANCE PRACTICES
reference.
MAIN LANDING GEAR BRAKE
• Updated Chapter-20 reference to Standard Practices Manual
32-42-02 CONTROLS - MAINTENANCE
reference.
PRACTICES
MAIN LANDING GEAR BRAKE • Updated Chapter-20 reference to Standard Practices Manual
32-42-02
CONTROLS - ADJUSTMENT/TEST reference.

PARKING BRAKE - MAINTENANCE • Updated Chapter-20 reference to Standard Practices Manual

32-42-03
PRACTICES reference.

BRAKE RESERVOIR - • Updated Chapter-20 reference to Standard Practices Manual

32-42-04
MAINTENANCE PRACTICES reference.
HYDRAULIC PACK ASSEMBLY
• Updated Chapter-20 reference to Standard Practices Manual
32-42-05 AND ACCUMULATOR -
reference.
MAINTENANCE PRACTICES
EMERGENCY BRAKE SYSTEM
• Updated Chapter-20 reference to Standard Practices Manual
32-42-06 COMPONENTS - MAINTENANCE
reference.
PRACTICES
• Replaced Type X sealant with approved alternatives.
STEERING - MAINTENANCE
32-50-00 • Updated Chapter-20 reference to Standard Practices Manual
PRACTICES
reference.

POSITION AND WARNING - • Updated Chapter-20 reference to Standard Practices Manual

32-60-00
ADJUSTMENT/TEST reference.

Chapter 33 LIST OF EFFECTIVE PAGES • Revised page dates.

Chapter 33 TABLE OF CONTENTS • Revised date and page numbers.

FLIGHT COMPARTMENT LIGHTING • Updated Chapter-20 reference to Standard Practices Manual

33-10-00
- MAINTENANCE PRACTICES reference.

• Revised the General and Operation procedures to include

EXTERIOR LIGHTING - service information data.
33-40-00
DESCRIPTION AND OPERATION • Added the production and service airplane serials for the anti-
collision light in the General and Operation sections.

• Updated the standard practices manual reference in the

procedure.
• Added service bulletin information to the anti-collision and wing
EXTERIOR LIGHTING - tip navigation light maintenance procedures. For the
33-40-00
MAINTENANCE PRACTICES Navigation and Anticollision lights, added a Note to refer to the
Exterior LED Lighting Maintenance Practices section for the
airplane serials -0417 and -0439 and On and Airplanes -0001
thru -0416 and -0418 thru -0438 Incorporating SB525A-33-06.

Copyright © Textron Aviation Inc. Page 19 of 30

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 Model 525A Maintenance Manual (Rev 20)
(Rev 20)

• Added troubleshooting information for the Exterior LED

Lighting System.
EXTERIOR LED LIGHTING - • Added the airplane serials -0418 thru -0438 to the Service
33-40-01
TROUBLESHOOTING Bulletin effectivity and added the electrical connector REFDES
for the production airplane serials in the Troubleshooting
section.

• Revised Nav/Anti-Coll light Removal/Installation Procedures to

include the service information.
EXTERIOR LED LIGHTING -
33-40-01 • Added separate maintenance information for the production
MAINTENANCE PRACTICES
and service airplane serials in the Navigation and Anti-
Collision Light Removal/Installation procedure.

• Added procedure to Charge the Emergency Lighting Battery

EMERGENCY LIGHTING - Packs.
33-50-00
MAINTENANCE PRACTICES • Updated Emergency Lighting Battery Pack and 5G Switch
Removal/Installation procedures to include right installations.

• Moved paragraphs A through C of Task 720 to new Task 710

Emergency Lighting System Operational Check, removed
detailed inspection paragraph, then re-named Task 720 to
EMERGENCY LIGHTING -
33-50-00 Emergency Lighting Battery Pack (Capacity) Functional Check
INSPECTION/CHECK
with all new content.
• Added the Emergency Lighting Battery Pack Restoration
(Inspection Task 33-50-00-960).

Chapter 34 LIST OF EFFECTIVE PAGES • Revised page dates.

Chapter 34 TABLE OF CONTENTS • Revised date and page numbers.

PITOT-STATIC SYSTEM - • Updated Chapter-20 reference to Standard Practices Manual

34-10-00
MAINTENANCE PRACTICES reference.

• Changed Table 605 45,000 air data tester airspeed column

entry from 185 knots (343km/hr) to 180 knots.
• Updated Table 603, changed the test from -980 feet to -960
PITOT-STATIC SYSTEM - feet input, which read -988 +/-20 feet.
34-10-00
INSPECTION/CHECK • Editorial change to External Figure references in Note at para
4.
• Corrected corrupted Recording and Reporting Form for
Airplanes -0001 thru -0299.
COLLINS PRO LINE 21 AIR DATA
• Updated Chapter-20 reference to Standard Practices Manual
34-10-02 SYSTEM - MAINTENANCE
reference.
PRACTICES
• Updated Chapter-20 reference to Standard Practices Manual
COLLINS PRO LINE 21
reference.
INTEGRATED AVIONICS
34-10-03 • Added notes that state to record the default values and to
PROCESSOR SYSTEM -
install the V-speed database before the Nav database in the
MAINTENANCE PRACTICES
Flight Management Computer Removal/Installation procedure.
ALT-55B RADIO ALTIMETER
• Updated Chapter-20 reference to Standard Practices Manual
34-10-04 SYSTEM - MAINTENANCE
reference.
PRACTICES

Copyright © Textron Aviation Inc. Page 20 of 30

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 Model 525A Maintenance Manual (Rev 20)
(Rev 20)

AIRSPEED INDICATOR - • Updated Chapter-20 reference to Standard Practices Manual

34-10-05
MAINTENANCE PRACTICES reference.
STANDBY ALTIMETER/AIRSPEED
• Updated Chapter-20 reference to Standard Practices Manual
34-10-06 INDICATOR - MAINTENANCE
reference.
PRACTICES
ENCODING ALTIMETER - • Updated Chapter-20 reference to Standard Practices Manual
34-10-07
MAINTENANCE PRACTICES reference.

VERTICAL SPEED INDICATOR - • Updated Chapter-20 reference to Standard Practices Manual

34-10-08
MAINTENANCE PRACTICES reference.

COLLINS ALT-4000 RADIO • Updated Chapter-20 reference to Standard Practices Manual

34-12-04 ALTIMETER SYSTEM - reference.
MAINTENANCE PRACTICES • Added the step for the R/I of the polyurethane gasket.
COLLINS PRO LINE 21 ATTITUDE
• Updated Chapter-20 reference to Standard Practices Manual
34-20-01 HEADING SYSTEM -
reference.
MAINTENANCE PRACTICES
COLLINS PRO LINE 21 ATTITUDE • Updated Chapter-20 reference to Standard Practices Manual
34-20-01 HEADING SYSTEM - reference.
ADJUSTMENT/TEST • Updated Task 34-20-01-720 title to standard naming format.

• Changed step 2.F.(5) from RIGHT dimming knob, to CENTER

J.E.T. STANDBY GYRO WITH
dimming knob. Changed step 2.G.(13) from stays on, to goes
34-21-00 BATTERY PACK -
off.
INSPECTION/CHECK
• Updated Task 34-21-00-710 title to standard naming format.

• Updated Chapter-20 reference to Standard Practices Manual

KMR-675 MARKER BEACON -
34-30-01 reference.
MAINTENANCE PRACTICES
• Added the step for the R/I of the polyurethane gasket.

RTA-800/852 WEATHER RADAR • Updated Chapter-20 reference to Standard Practices Manual

34-40-01
SYSTEM - ADJUSTMENT/TEST reference.

CAS 66A TRAFFIC COLLISION • Updated Chapter-20 reference to Standard Practices Manual
34-40-02 AVOIDANCE SYSTEM (TCAS 1) - reference.
MAINTENANCE PRACTICES • Added the step for the R/I of the polyurethane gasket.

• Updated Chapter-20 reference to Standard Practices Manual

reference.
XM SATELLITE WEATHER
• Added the step for the R/I of the polyurethane gasket.
34-40-05 DATALINK - MAINTENANCE
• Added Service Bulletin (SB525A34-20 and SB525A-34-36)
PRACTICES
information to the XM Datalink Antenna paragraph heading.
Added 'Type I' to the XM antenna electrical bonding step.
WX-1000E STORMSCOPE
• Updated Chapter-20 reference to Standard Practices Manual
34-40-06 WEATHER MAPPING SYSTEM -
reference.
MAINTENANCE PRACTICES
WX-500 STORMSCOPE WEATHER
• Updated Chapter-20 reference to Standard Practices Manual
34-40-07 MAPPING SYSTEM -
reference.
MAINTENANCE PRACTICES

Copyright © Textron Aviation Inc. Page 21 of 30

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 Model 525A Maintenance Manual (Rev 20)
(Rev 20)

COLLINS TCAS-4000 TRAFFIC

• Updated Chapter-20 reference to Standard Practices Manual
ALERT AND COLLISION
34-40-08 reference.
AVOIDANCE SYSTEM (TCAS II) -
• Added the step for the R/I of the polyurethane gasket.
MAINTENANCE PRACTICES
SKYWATCH HP TRAFFIC
• Updated Chapter-20 reference to Standard Practices Manual
COLLISION AVOIDANCE SYSTEM
34-42-02 reference.
(TCAS 1) - MAINTENANCE
• Added the step for the R/I of the polyurethane gasket.
PRACTICES
KN-63 DISTANCE MEASURING • Updated Chapter-20 reference to Standard Practices Manual
34-50-01 EQUIPMENT SYSTEM - reference.
MAINTENANCE PRACTICES • Added the step for the R/I of the polyurethane gasket.

• Updated Chapter-20 reference to Standard Practices Manual

KN-53 VHF NAVIGATION SYSTEM -
34-50-02 reference.
MAINTENANCE PRACTICES
• Added the step for the R/I of the polyurethane gasket.

KR-87 AUTOMATIC DIRECTION • Updated Chapter-20 reference to Standard Practices Manual

34-50-03 FINDER (ADF) SYSTEM - reference.
MAINTENANCE PRACTICES • Added the step for the R/I of the polyurethane gasket.

KT-70 DUAL TRANSPONDER • Updated Chapter-20 reference to Standard Practices Manual

34-50-04 SYSTEM - MAINTENANCE reference.
PRACTICES • Added the step for the R/I of the polyurethane gasket.

DM-441B DISTANCE MEASURING • Updated Chapter-20 reference to Standard Practices Manual

34-50-05 EQUIPMENT SYSTEM - reference.
MAINTENANCE PRACTICES • Added the step for the R/I of the polyurethane gasket.

• Updated Task 34-50-06-720 title to standard naming format

TRANSPONDER SYSTEM - and added note that is for airplanes except Philippines
34-50-06
INSPECTION/CHECK certified airplanes.
• Created Task 34-50-06-721 for Philippines certified airplanes.

COLLINS PRO LINE 21 NAV- • Updated Chapter-20 reference to Standard Practices Manual
34-50-10 4000/4500 NAVIGATION SYSTEM - reference.
MAINTENANCE PRACTICES • Added the step for the R/I of the polyurethane gasket.

• Updated Chapter-20 reference to Standard Practices Manual

GARMIN GTX-330D DIVERSITY
reference.
34-54-03 TRANSPONDER - MAINTENANCE
• Added the step for the R/I of the polyurethane gasket.
PRACTICES
• Corrected corrupted image in Figure 201 Sheet 1.

COLLINS TDR-94/D DUAL • Updated Chapter-20 reference to Standard Practices Manual

34-54-05 TRANSPONDER SYSTEM - reference.
MAINTENANCE PRACTICES • Added the step for the R/I of the polyurethane gasket.
COLLINS TDR-94/D DUAL
34-54-05 TRANSPONDER SYSTEM - • Removed POA = 0 from 4.D.(2).
ADJUSTMENT/TEST
GARMIN GPS 500 GLOBAL
• Corrected the Fuselage Station and Buttock Line information
34-57-05 POSITIONING SYSTEM (GPS) -
for the GPS 2 antenna.
DESCRIPTION AND OPERATION

Copyright © Textron Aviation Inc. Page 22 of 30

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 Model 525A Maintenance Manual (Rev 20)
(Rev 20)

• Updated Chapter-20 reference to Standard Practices Manual

reference.
GARMIN GPS 500 GLOBAL
• Added the step for the R/I of the polyurethane gasket.
34-57-05 POSITIONING SYSTEM (GPS) -
• Added Note for the SB525A-34-36 in the GPS 2 Antenna
MAINTENANCE PRACTICES
Removal/Installation procedure. Revised the art to show the
Service Bulletin impact.
KLN-900 FLIGHT MANAGEMENT
• Updated Chapter-20 reference to Standard Practices Manual
34-60-01 SYSTEM - MAINTENANCE
reference.
PRACTICES
• Updated Chapter-20 reference to Standard Practices Manual
UNS-1K/UNS-1L/UNS-1LW FLIGHT
reference.
34-60-02 MANAGEMENT SYSTEM -
• Added information about the optional SSDTU, FPCDU and the
MAINTENANCE PRACTICES
GPS WAAS antennae per ICA-525A-34-00002 (Rev-A).
GNS-X/LS FLIGHT MANAGEMENT
• Updated Chapter-20 reference to Standard Practices Manual
34-60-03 SYSTEM - MAINTENANCE
reference.
PRACTICES
COLLINS FMS-3000 FLIGHT • Added SB525A-34-36 effectivity to the Description section.
34-60-04 MANAGEMENT SYSTEM - Revised the FS and BL values of the GPS 1 and GPS 2
DESCRIPTION AND OPERATION antennas.

• Updated Chapter-20 reference to Standard Practices Manual

COLLINS FMS-3000 FLIGHT reference.
34-60-04 MANAGEMENT SYSTEM - • Added the step for the R/I of the polyurethane gasket.
MAINTENANCE PRACTICES • Added SB525A-34-36 information to the GPS 1 and GPS 2
antenna removal/installation procedures.
UNS-1ESP FLIGHT MANAGEMENT
• Updated Chapter-20 reference to Standard Practices Manual
34-60-05 SYSTEM - MAINTENANCE
reference.
PRACTICES
Chapter 35 LIST OF EFFECTIVE PAGES • Revised page dates.

Chapter 35 TABLE OF CONTENTS • Revised date and page numbers.

• Updated Chapter-20 reference to Standard Practices Manual

reference.
35-00-00 OXYGEN - INSPECTION/CHECK • Updated Task 35-00-00-780 title to standard naming format.
• Added Task 35-00-00-960 Oxygen Cylinder Assembly
Discard.

CREW OXYGEN SYSTEM - • Updated Chapter-20 reference to Standard Practices Manual

35-10-00
MAINTENANCE PRACTICES reference.
CREW OXYGEN SYSTEM -
35-10-00 • New Section.
ADJUSTMENT/TEST
CREW OXYGEN MASK - • Added Task 35-10-01-960 EROS Crew Oxygen Mask
35-10-01
INSPECTION/CHECK Restoration.

PASSENGER OXYGEN SYSTEM - • Revised the oxygen control valve position information from ON
35-20-00
INSPECTION/CHECK to MANUAL DROP.

Chapter 36 LIST OF EFFECTIVE PAGES • Revised page dates.

Copyright © Textron Aviation Inc. Page 23 of 30

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 Model 525A Maintenance Manual (Rev 20)
(Rev 20)

Chapter 36 TABLE OF CONTENTS • Revised date and page numbers.

• Added step in installation of precooler to run engine and check

PNEUMATIC DISTRIBUTION - for leaks.
36-10-00
MAINTENANCE PRACTICES • Updated Chapter-20 reference to Standard Practices Manual
reference.
PNEUMATIC DISTRIBUTION -
36-10-00 • Added Task 36-10-00-960 Bleed Air Precooler Discard.
INSPECTION/CHECK
PNEUMATIC CABIN ENTRY DOOR
• Updated Chapter-20 reference to Standard Practices Manual
36-11-00 SEAL - MAINTENANCE
reference.
PRACTICES
Chapter 51 LIST OF EFFECTIVE PAGES • Revised page dates.

Chapter 51 TABLE OF CONTENTS • Revised date and page numbers.

STRUCTURES - GENERAL • Replaced information for corrosion with reference to the

51-00-00
Citation Standard Practices Manual.
CORROSION SEVERITY MAPS -
51-05-00 • Replaced content of section with reference to CESSP.
DESCRIPTION AND OPERATION
CORROSION - DESCRIPTION AND
51-10-00 • Replaced content of section with reference to CESSP.
OPERATION
CORROSION PREVENTION AND
51-10-01 CONTROL PROGRAM - • Replaced content of section with reference to CESSP.
DESCRIPTION AND OPERATION
EXTERIOR SURFACE -
51-10-02 • Removed Section.
INSPECTION/CHECK
CORROSION INHIBITING
51-20-00 COMPOUND (CIC) - DESCRIPTION • Replaced content of section with reference to CESSP.
AND OPERATION
CORROSION INHIBITOR AIRPLANE
51-20-10 STRUCTURES - MAINTENANCE • Replaced content of section with reference to CESSP.
PRACTICES
CORROSION INHIBITOR
51-20-20 ELECTRICAL CONNECTORS - • Replaced content of section with reference to CESSP.
MAINTENANCE PRACTICES
• Replaced Type X sealant with approved alternatives.
CORROSION INHIBITOR, LANDING
• Updated Chapter-20 reference to Standard Practices Manual
51-20-30 GEAR - MAINTENANCE
reference.
PRACTICES
• Paragraph 4 Changed trailing link to trunnion in two places.

Chapter 52 LIST OF EFFECTIVE PAGES • Revised page dates.

Chapter 52 TABLE OF CONTENTS • Revised date and page numbers.

• Updated Chapter-20 reference to Standard Practices Manual

52-00-00 DOORS - GENERAL
reference.

CABIN ENTRY DOOR - • Updated Chapter-20 reference to Standard Practices Manual

52-10-00
MAINTENANCE PRACTICES reference.

Copyright © Textron Aviation Inc. Page 24 of 30

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 Model 525A Maintenance Manual (Rev 20)
(Rev 20)

• Revised the Cabin Entry Door Seal Functional Check

CABIN ENTRY DOOR -
52-10-00 procedure per functional test document.
INSPECTION/CHECK
• Updated task 52-10-00-210 to Detailed Inspection.

• Updated Chapter-20 reference to Standard Practices Manual

reference.
EMERGENCY EXIT DOOR -
52-20-00 • Updated Emergency Exit Door Removal/Installation and Door
MAINTENANCE PRACTICES
Seal Removal/Installation to the approved standardized
procedures.

• Task 210 - Added note for VV-P-236.

EMERGENCY EXIT DOOR -
52-20-00 • Added VV-P-236 to clarify petroleum type.
INSPECTION/CHECK
• Updated task 52-20-00-210 to Detailed Inspection.

CARGO DOORS - MAINTENANCE • Updated Chapter-20 reference to Standard Practices Manual

52-30-00 PRACTICES reference.

• Updated Chapter-20 reference to Standard Practices Manual

ENTRANCE DOOR STAIRS -
52-60-00 reference.
MAINTENANCE PRACTICES
• Added information on Bond material for Bumper installation
COMPOSITE ENTRANCE STEP
• Added step 7 Hinge Pin Removal/Installation
52-60-01 ASSEMBLY - MAINTENANCE
• Added step 8 Entry Step Bumper Removal/Installation
PRACTICES
DOOR WARNING SWITCH - • Updated Chapter-20 reference to Standard Practices Manual
52-70-00
MAINTENANCE PRACTICES reference.

• Updated Chapter-20 reference to Standard Practices Manual

reference.
MAIN LANDING GEAR DOORS -
52-80-01 • Revised the service bulletin effectivity and updated the door
MAINTENANCE PRACTICES
linkage installation procedure. Revised the art to show the
different door linkages.

• Updated Chapter-20 reference to Standard Practices Manual

reference.
• Editorial change to External Figure references in para 3.A.(11).
MAIN LANDING GEAR DOORS - (a).
52-80-01
ADJUSTMENT/TEST • Revised the main landing gear door adjustment procedure to
correct the service bulletin effectivity and to add a step to check
the interference of the clamp with the pushrod per service
bulletin SB525A-32-12 Rev-1.

NOSE LANDING GEAR DOORS - • Updated Chapter-20 reference to Standard Practices Manual
52-80-02
MAINTENANCE PRACTICES reference.

Chapter 53 LIST OF EFFECTIVE PAGES • Revised page dates.

Chapter 53 TABLE OF CONTENTS • Revised date and page numbers.

Copyright © Textron Aviation Inc. Page 25 of 30

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 Model 525A Maintenance Manual (Rev 20)
(Rev 20)

• Updated Chapter-20 reference to Standard Practices Manual

reference.
• Updated information with link to Introduction to contact Textron
53-00-00 FUSELAGE - INSPECTION/CHECK Aviation Customer Service, Structural Repair.
• Task "Nose Landing Gear Actuator Fitting Discard" created.
• Task "Nose Landing Gear Trunnion Support Fitting Discard"
created.

• Updated 3.A.(2) task 53-00-01-211.

• Added Note to task 53-00-01-212 and -213.
FUSELAGE EXTERIOR - • Updated all the Tasks to current engineering.
53-00-01
INSPECTION/CHECK • Updated tasks 210, 211, 212, and 213 to Detailed Inspections.
• Updated Task 251 Title to standardized inspection program
format.

• Updated Chapter-20 reference to Standard Practices Manual

reference.

NOSE RADOME - MAINTENANCE • Updated the damage criteria for diverter strips in this section to
53-10-01 make it consistent with the other models.
PRACTICES
• Deleted step to install radome from the diverter strip repair
procedure since it was not removed.
• Updated Task 53-10-01-760 title to standard naming format.

NOSE RADOME SEALING - • Updated Chapter-20 reference to Standard Practices Manual

53-10-02
MAINTENANCE PRACTICES reference.

• Added references to NDI manual in task -250 and -251.

• Added Task 53-10-05-252 Aft Pressure Bulkhead Seal Cup
PRESSURE BULKHEAD -
53-10-05 Detailed Inspection.
INSPECTION/CHECK
• Updated Titles for Tasks 210, 211, 212, 213, 250, and 251 to
match inspection database.

• Removed the fluorescent penetrant inspection option from task

53-10-07-210 and changed the reference to the correct NDI
WINDSHIELD, SIDE, AND CABIN pageblock, also moved the notes from -250 to -210 and
53-10-07 WINDOW FRAMES - deleted the visual inspection paragraph from -250.
INSPECTION/CHECK • Updated Task 53-10-07-250 Title to Cabin Skin Around
Cockpit Side Window Skin and Window Retainer (Eddy
Current) Special Detailed Inspection.
DOORFRAME -
53-10-08 • Updated tasks 210 and 211 to Detailed Inspections.
INSPECTION/CHECK
Chapter 54 LIST OF EFFECTIVE PAGES • Revised page dates.

Chapter 54 TABLE OF CONTENTS • Revised date and page numbers.

NACELLE AND PYLON - • Revised pylon access panels.

54-00-00
INSPECTION/CHECK • Updated Task 54-00-00-210 title to standard naming format.

PYLON - MAINTENANCE • Updated Chapter-20 reference to Standard Practices Manual

54-51-00
PRACTICES reference.

Copyright © Textron Aviation Inc. Page 26 of 30

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 Model 525A Maintenance Manual (Rev 20)
(Rev 20)

• Replaced Type X sealant with approved alternatives.

• Added four new inspection tasks.
• Updated Task 250 Title to standardized inspection program
format.
54-51-00 PYLON - INSPECTION/CHECK
• Added place holder task 258 for NDI inspection that is not yet
developed.
• Task 250, Added steps to remove pylon skin if service bulletin
to add access panel in not completed.

• Added new inspection tasks -252 and -254 thru -256.

ENGINE MOUNT STRUCTURE -
54-51-01 • Updated 2.A.(3) Nondestructive Testing Manual, Part 6, 71-20-
INSPECTION/CHECK
01 reference.

Chapter 55 LIST OF EFFECTIVE PAGES • Revised page dates.

Chapter 55 TABLE OF CONTENTS • Revised date and page numbers.

HORIZONTAL STABILIZER - • Updated Chapter-20 reference to Standard Practices Manual

55-10-00
MAINTENANCE PRACTICES reference.

• Updated Chapter-20 reference to Standard Practices Manual

HORIZONTAL STABILIZER - reference.
55-10-00
INSPECTION/CHECK • Updated information with link to Introduction to contact Textron
Aviation Customer Service, Structural Repair.

ELEVATOR - MAINTENANCE • Updated Chapter-20 reference to Standard Practices Manual

55-20-00
PRACTICES reference.

AFT BULLET FAIRING - • Updated Chapter-20 reference to Standard Practices Manual

55-30-00
MAINTENANCE PRACTICES reference.

• Updated Chapter-20 reference to Standard Practices Manual

reference.
VERTICAL STABILIZER -
55-40-00 • Updated information with link to Introduction to contact Textron
INSPECTION/CHECK
Aviation Customer Service, Structural Repair.
• Added two new inspection tasks -250 and -251.

RUDDER - MAINTENANCE • Updated Chapter-20 reference to Standard Practices Manual

55-40-01
PRACTICES reference.

Chapter 56 LIST OF EFFECTIVE PAGES • Revised page dates.

Chapter 56 TABLE OF CONTENTS • Revised date and page numbers.

56-00-00 WINDOWS - APPROVED REPAIRS • Updated Crack Definition in Tables 802 and 803.
FLIGHT COMPARTMENT
• Updated Chapter-20 reference to Standard Practices Manual
56-10-00 WINDOWS - MAINTENANCE
reference.
PRACTICES
• Divided Task 281 - Window Optical Prism Inspection into Task
FLIGHT COMPARTMENT 281 - Cockpit Side Window Optical (Prism) Special Detailed
56-10-00
WINDOWS - INSPECTION/CHECK Inspection and Task 282 - Windshield Optical (Prism) Special
Detailed Inspection.

DOOR WINDOW - MAINTENANCE • Updated Chapter-20 reference to Standard Practices Manual

56-30-00
PRACTICES reference.

Copyright © Textron Aviation Inc. Page 27 of 30

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 Model 525A Maintenance Manual (Rev 20)
(Rev 20)

CABIN WINDOW - MAINTENANCE • Updated Chapter-20 reference to Standard Practices Manual

56-20-00
PRACTICES reference.

Chapter 57 LIST OF EFFECTIVE PAGES • Revised page dates.

Chapter 57 TABLE OF CONTENTS • Revised date and page numbers.

• Updated Chapter-20 reference to Standard Practices Manual

reference.
• Updated information with link to Introduction to contact Textron
Aviation Customer Service, Structural Repair.
• Added Wing Skin as an inspection area and a Note for
57-00-00 WING - INSPECTION/CHECK Borescope usage in the External Wing Zonal Inspection task.
• Task ' Main Landing Gear Side Brace Actuator Fitting Discard'
created.
• Task 'Main Landing Gear Forward/Aft Trunnion Fitting Discard'
created.
• Updated Task 57-00-00-210 title to standard naming format.
WING MAIN SPAR -
57-00-05 • New Section.
INSPECTION/CHECK
WING SKIN/ACCESS PLATE -
57-20-02 • Added Vaseline as an alternative to VV-P-236.
MAINTENANCE PRACTICES
SKIN LEADING EDGE GAP
• Updated Chapter-20 reference to Standard Practices Manual
57-20-03 CLEANOUT - MAINTENANCE
reference.
PRACTICES
FLAPS - MAINTENANCE • Updated Chapter-20 reference to Standard Practices Manual
57-50-00
PRACTICES reference.

FLAP BUMPER STRIP - • Updated Chapter-20 reference to Standard Practices Manual

57-50-02
MAINTENANCE PRACTICES reference.

AILERONS - MAINTENANCE • Updated Chapter-20 reference to Standard Practices Manual

57-60-00
PRACTICES reference.

SPEED BRAKE - MAINTENANCE • Updated Chapter-20 reference to Standard Practices Manual

57-70-00
PRACTICES reference.

WING ASSEMBLY - MAINTENANCE • Updated Chapter-20 reference to Standard Practices Manual

57-80-00
PRACTICES reference.

Chapter 71 LIST OF EFFECTIVE PAGES • Revised page dates.

Chapter 71 TABLE OF CONTENTS • Revised date and page numbers.

ENGINE (AIRPLANES -0001 THRU -
• Updated Chapter-20 reference to Standard Practices Manual
71-01-00 0299) - MAINTENANCE
reference.
PRACTICES
ENGINE (AIRPLANES -0001 THRU - • Updated Chapter-20 reference to Standard Practices Manual
71-01-00
0299) - REMOVAL/INSTALLATION reference.

ENGINE - MAINTENANCE • Updated Chapter-20 reference to Standard Practices Manual

71-01-10
PRACTICES reference.

Copyright © Textron Aviation Inc. Page 28 of 30

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 Model 525A Maintenance Manual (Rev 20)
(Rev 20)

ENGINE - • Updated Chapter-20 reference to Standard Practices Manual

71-01-10
REMOVAL/INSTALLATION reference.

• Updated nacelle inlet assy R/I to include compliance spacers

for -300 and on also updated figure 203s1 to show the
ENGINE COWLING -
71-10-00 spacers.
MAINTENANCE PRACTICES
• Updated Chapter-20 reference to Standard Practices Manual
reference.
ENGINE MOUNTS - MAINTENANCE
71-20-00 • Updated step 2.B.(1)per TPCR 90934
PRACTICES
• Added Task 71-20-00-960 Engine Mount Assembly
ENGINE MOUNTS - Restoration.
71-20-00
INSPECTION/CHECK • Added Task 71-20-00-220 Forward and Aft Engine Mount
Assemblies Detailed Inspection.

ENGINE FIRESEALS - • Updated Chapter-20 reference to Standard Practices Manual

71-30-00
MAINTENANCE PRACTICES reference.

ENGINE ELECTRICAL HARNESS - • Updated Chapter-20 reference to Standard Practices Manual

71-50-10
MAINTENANCE PRACTICES reference.

ENGINE DRAIN LINES - • Updated Chapter-20 reference to Standard Practices Manual

71-70-00
MAINTENANCE PRACTICES reference.

Chapter 73 LIST OF EFFECTIVE PAGES • Revised page dates.

Chapter 73 TABLE OF CONTENTS • Revised date and page numbers.

ENGINE FUEL DISTRIBUTION - • Updated Chapter-20 reference to Standard Practices Manual

73-10-00
MAINTENANCE PRACTICES reference.
ENGINE FUEL PRESSURE
• Updated Chapter-20 reference to Standard Practices Manual
73-30-00 INDICATING - MAINTENANCE
reference.
PRACTICES
ENGINE FUEL FLOW INDICATING - • Updated Chapter-20 reference to Standard Practices Manual
73-30-01
MAINTENANCE PRACTICES reference.

Chapter 76 LIST OF EFFECTIVE PAGES • Revised page dates.

Chapter 76 TABLE OF CONTENTS • Revised date and page numbers.

ENGINE POWER CONTROLS - • Updated Chapter-20 reference to Standard Practices Manual

76-11-00
MAINTENANCE PRACTICES reference.

ENGINE POWER CONTROLS - • Updated Chapter-20 reference to Standard Practices Manual

76-11-00
ADJUSTMENT/TEST reference.

THROTTLE SWITCHES - • Added service bulletin information to the Throttle Position

76-11-01
ADJUSTMENT/TEST Switch adjustment procedure for the Steep Approach option.

ENGINE POWER CONTROLS - • Updated Chapter-20 reference to Standard Practices Manual

76-11-10
MAINTENANCE PRACTICES reference.

THROTTLE CABLES - • Updated Chapter-20 reference to Standard Practices Manual

76-12-00
MAINTENANCE PRACTICES reference.

Copyright © Textron Aviation Inc. Page 29 of 30

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 Model 525A Maintenance Manual (Rev 20)
(Rev 20)

FULL AUTHORITY DIGITAL ENGINE

76-12-10 CONTROL (FADEC) - • Editorial change to Figure reference in para 2.C.
MAINTENANCE PRACTICES

FULL AUTHORITY DIGITAL ENGINE

76-12-10 CONTROL (FADEC) - • Updated Task 710 Title to match Inspection Database.
INSPECTION/CHECK
ENGINE SYNCHRONIZER -
76-13-00 • Changed Alpha-Molykote G to Molykote G.
TROUBLESHOOTING
ENGINE SYNCHRONIZER - • Updated Chapter-20 reference to Standard Practices Manual
76-13-00
MAINTENANCE PRACTICES reference.

Chapter 78 LIST OF EFFECTIVE PAGES • Revised page dates.

Chapter 78 TABLE OF CONTENTS • Revised date and page numbers.

EXHAUST NOZZLE - • Updated Chapter-20 reference to Standard Practices Manual

78-10-00
MAINTENANCE PRACTICES reference.

DEFLECTOR - MAINTENANCE • Updated Chapter-20 reference to Standard Practices Manual

78-10-01
PRACTICES reference.
THRUST ATTENUATOR -
78-30-00 • Editorial change to External Figure references in para 1.A.
DESCRIPTION AND OPERATION
THRUST ATTENUATOR - • Updated Chapter-20 reference to Standard Practices Manual
78-30-00
MAINTENANCE PRACTICES reference.

THRUST ATTENUATOR - • Updated Chapter-20 reference to Standard Practices Manual

78-30-00
ADJUSTMENT/TEST reference.

Chapter 79 LIST OF EFFECTIVE PAGES • Revised page dates.

Chapter 79 TABLE OF CONTENTS • Revised date and page numbers.

OIL PRESSURE INDICATING - • Updated Chapter-20 reference to Standard Practices Manual

79-30-00
MAINTENANCE PRACTICES reference.

Chapter 80 LIST OF EFFECTIVE PAGES • Revised page dates.

Chapter 80 TABLE OF CONTENTS • Revised date and page numbers.

• Added inspection item (bearing damage) for the starter-

generator.
CRANKING - MAINTENANCE • Added note to the Starter-Generator (S/G) removal procedure
80-10-00
PRACTICES to refer to troubleshooting section of the supplier manual if
there is a S/G failure. Revised the engine leak check
procedure in the S/G installation procedure.

• New Section to add Task 80-10-00-960 Starter-Generator

80-10-00 CRANKING - INSPECTION/CHECK
Restoration.

Copyright © Textron Aviation Inc. Page 30 of 30

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