INSTALLATION AND RIGGING

PROCEDURES
Raisbeck Engineering Document No. C90-135A-IM

RAISBECK/HARTZELL QUIET TURBOFAN PROPELLER

SYSTEM OR SWEPT BLADE TURBOFAN PROPELLER
SYSTEM FOR THE BEECHCRAFT KING AIR C90 AND
C90A EQUIPPED WITH BLACKHAWK PT6A-135A
ENGINES PER STC SA10341SC

Advanced Technology Performance and Environmental Improvement

Systems for your KING AIR and SUPER KING AIR
 INSTALLATION AND RIGGING PROCEDURES
RAISBECK/HARTZELL QUIET TURBOFAN PROPELLER SYSTEM OR SWEPT BLADE TURBOFAN
PROPELLER SYSTEM FOR THE BEECHCRAFT KING AIR C90 AND C90A EQUIPPED WITH
BLACKHAWK PT6A-135A ENGINES PER STC SA10341SC
RAISBECK ENGINEERING DOCUMENT C90-135A-IM

ORIGINAL ISSUE: December, 2005

REVISION A: March, 2006
REVISION B: May, 2006
REVISION C: September 2, 2008
REVISION D November 18, 2013
REVISION E: March 14, 2014
REVISION F: September 22, 2014
REVISION G: November 6, 2014
REVISION H: September 18, 2015
REVISION J May 2, 2016
REVISION K January 5, 2018

Prepared by: P. Weber

Checked by: N. Lachendro

Approved by: E. Murvine

BEECHCRAFT King Air C90/C90A Aircraft:
• Equipped with Raisbeck/Hartzell 4-Blade Propellers
• Equipped with P&W PT6A-135A Engines from Blackhawk

ORIGINAL ISSUE: December, 2005

LOG OF REVISIONS
Rev Pages(s) Description Date Approved by
C All Removed all references to optional propeller 1700 MAX RPM 09/2008 GL
adjustments.

Sec 2.2 & 9.0 Added 10.5k GWI option and reference to SB-08-BC-01 for wing
ballast installation.

Section 9.0 Added requirement for 10-Ply Rated Main Landing tires to be
eligible for the Optional Gross Weight Increase.

D All Added/modified data, instructions, and images for installation and 11/18/13 KEA
rigging of Swept Blade propeller system HC-D4N-3C/D9510SK.

E Sec 8.2.1 Changed “1700 RPM” callout to “1800 RPM”. 3/14/14 KEA

Sec 8.3 Added “NOTE: Adjust as close as possible to 1100 RPM to

minimize fast taxi.
Chart A Replaced Chart A (1700 RPM) with Chart A (1800 RPM)

F Sec 2.0 Revised D9510SK blade angle callouts. See DCN F for details. 9/22/14 KEA
Sec 11.3 Revised W&B section. See DCN F for details.

G Sec 2.1 11/6/14 KEA

Revised sections for compatibility with C90GTx configuration. See
Sec 9.0
DCN G for details.
Sec 10.0
Sec 3.3 Revised Kit No. callouts. See DCN G for details.
Sec 5.3 Rewrote and reorganized for clarity.
Sec 6.5.1 (LJ-1542 & sub) Corrected target installation orientation. See DCN
G for details.

H Sec 6.3 Added notes to allow use of Bracket Assy P/N 15BC-72-200-1 in 9/18/15 KEA
Figure 6 lieu of OEM P/N 50-910584-33.

J Cover/Title/ Clarified “C90 Series” to only C90 & C90A aircraft. 5/2/16 KEA
Header/Tables
2.1 Removed required compliance with SB-08-BC-01 for IGW.
9.0 Clarified IGW notes. Removed reference to SB-08-BC-01.
See DCN J for details.

K 5.4 Revised Circuit Breaker Switch P/N.

Figure 2 Revised Circuit Breaker Switch P/N.
Figure 7 Removed Flag Note 1. Removed Flag Note 1 from B-632 Shims.
Revised Flag Note 2 for clarity. Revised notation on External Beta
System Decompression Tool.
Figure 10 thru Revised Circuit Breaker Switch P/N and Manufacturer on Equipment
Figure 14 List.
Reference DCN K for details.

Revision K: January 5, 2018 i

BEECHCRAFT King Air C90/C90A Aircraft:
• Equipped with Raisbeck/Hartzell 4-Blade Propellers
• Equipped with P&W PT6A-135A Engines from Blackhawk

TABLE OF CONTENTS
SECTION PAGE

1.0 INTRODUCTION and APPROVAL .....................................................................................................1

2.0 SYSTEM DESCRIPTION....................................................................................................................1
2.1 Optional Gross Weight Increase......................................................................................................2
3.0 NECESSARY DOCUMENTATION .....................................................................................................3
3.1 Raisbeck Engineering Supplied.......................................................................................................3
3.2 Customer/Installer Supplied ............................................................................................................3
3.3 References......................................................................................................................................3
4.0 PRE-INSTALLATION RUN-UP AND RIGGING CHECKS................................................................... 3
4.1 Run-Up Checks ...............................................................................................................................3
5.0 COCKPIT AND CABIN COMPONENT CHANGES ............................................................................. 4
5.1 Propeller De-Ice Ammeter Change .................................................................................................4
5.2 Airspeed Indicator Rework ..............................................................................................................4
5.3 Aircraft Equipped with Glass Cockpit...............................................................................................5
•(LJ-1063 and subsequent) .......................................................................................................................5
5.3.1 Aircraft Equipped with Garmin International G1000 .................................................................. 5
5.4 Propeller De-Ice Switch/Circuit Breaker Replacement ..................................................................... 6
5.5 Overhead Light Panel Rework.........................................................................................................6
5.6 Propeller De-Ice Timer Replacement ..............................................................................................6
6.0 ENGINE CHANGES ...........................................................................................................................7
6.1 Removals ........................................................................................................................................7
6.2 Governor Rigging ............................................................................................................................7
6.2.1 Overspeed Governor Adjustment for 1,900 MAX RPM............................................................. 7
6.2.2 Constant Speed Governor Adjustment for 1,900 Max Propeller RPM ...................................... 7
6.3 Propeller De-Ice Brush Block or Modular Brush Assembly and Bracket Changes ........................... 8
6.3.1 Removals and Bracket Change ................................................................................................8
6.3.2 Brush Block or Modular Brush Assembly Change .................................................................... 9
6.3.3 Propeller De-Ice Brush Inspection ............................................................................................9
6.4 Synchrophaser Magnetic Pick-Up Installation ................................................................................. 9
6.5 Synchrophaser Target Installation ................................................................................................. 10
6.5.1 Target-Screw Installation........................................................................................................ 10
6.5.2 Multiple Target Bracket Rework and Installation ..................................................................... 10
6.5.3 Single Target Bracket Rework and Installation ....................................................................... 11
6.5.4 Magnetic Target Bracket Rework and Installation .................................................................. 12
6.6 Propeller Installation......................................................................................................................12
6.7 Synchrophaser Magnetic Pick-Up Rigging .................................................................................... 13
Revision K: January 5, 2018 ii
BEECHCRAFT King Air C90/C90A Aircraft:
• Equipped with Raisbeck/Hartzell 4-Blade Propellers
• Equipped with P&W PT6A-135A Engines from Blackhawk

6.7.1 Magnetic Pick-Up Rigging - Target Screws ............................................................................ 13

6.7.2 Magnetic Pick-Up Rigging - Single Target Brackets ............................................................... 13
6.8 Propeller Brush Block or Modular Brush Assembly Installation and Adjustment ............................ 13
7.0 PRE-RUN INSPECTION AND CHECKS .......................................................................................... 13
8.0 POST-INSTALLATION RUN-UP CHECKS AND ADJUSTMENTS ................................................... 14
8.1 Takeoff RPM Check ......................................................................................................................14
8.2 Power Symmetry and Low Pitch Stop Check ................................................................................ 14
8.3 Low Idle Propeller RPM Adjustment .............................................................................................. 14
8.4 Propeller Autofeathering System ................................................................................................... 14
8.5 Overspeed Governor Operational Check ...................................................................................... 14
8.6 Propeller Feathering System ......................................................................................................... 15
8.7 Fuel Cutoff Lever Adjustments ...................................................................................................... 15
8.8 Check and Service Engine Oil (As Required) ................................................................................ 15
9.0 OPTIONAL GROSS WEIGHT INCREASE INSTALLATION ............................................................. 16
10.0 RETURN AIRPLANE TO SERVICE.................................................................................................. 17

LIST OF CHARTS
CHART TITLE PAGE
A Low Pitch Torque Check 19

LIST OF TABLES
TABLE TITLE PAGE
1 Reference: C90/C90A Aircraft Serial Numbers iv
2 Reference: C90/C90A Aircraft VMCA iv

LIST OF FIGURES
FIGURE TITLE
1 Deleted
2 thru 3.1 Cockpit Changes
4 Engine Related Changes
5 Synchrophaser Target Installation
6 Engine Related Changes and Synchrophaser Installation
7 Propeller Installation
8 Electrical System Changes
9 Placard Installation
10 thru 15 Propeller De-Icing System Wiring Diagram
16 Deleted

Revision K: January 5, 2018 iii

BEECHCRAFT King Air C90/C90A Aircraft:
• Equipped with Raisbeck/Hartzell 4-Blade Propellers
• Equipped with P&W PT6A-135A Engines from Blackhawk

TABLE 1
REFERENCE: C90/90A AIRCRAFT SERIAL NUMBERS
*Type Certificate Data Sheet (TCDS)

Model Model
Serial Number Range
*(TCDS) (Marketing)

C90 LJ-502 thru LJ-985, LJ-987 thru LJ-995, & LJ-997 thru LJ-1010
C90
C90-1 LJ-986, LJ-996, & LJ-1011 thru LJ-1062

LJ-1063 thru LJ-1287, LJ-1289 thru LJ-1294, LJ-1296 thru LJ-1301, LJ-1304,
C90A LJ-1309, LJ-1310, LJ-1313, LJ-1317, & LJ-1319

LJ-1288, LJ-1295, LJ-1302, LJ-1303, LJ-1305 thru LJ-1309, LJ-1311, LJ-1312,

LJ-1314 thru LJ-1316, LJ-1318, LJ-1320 thru LJ-1366, LJ-1368 thru LJ-1372,
LJ-1374 thru LJ-1376, LJ-1378 thru LJ-1383, LJ-1385, LJ-1387, LJ-1388, LJ-
C90A C90B 1390 thru LJ-1393, LJ-1395, LJ-1396, LJ-1398 thru LJ-1402, LJ-1404 thru LJ-
1410, LJ-1412 thru LJ-1424, LJ-1426 thru LJ-1430, LJ-1432 thru LJ-1497, LJ-
1499 thru LJ-1537, LJ-1539 thru LJ-1726, LJ-1728 thru LJ-1753, & LJ-1755

LJ-1367, LJ-1373, LJ-1377, LJ-1384, LJ-1386, LJ-1389, LJ-1394, LJ-1397, LJ-

C90SE 1403, LJ-1411, LJ-1425, LJ-1431, LJ-1498, & LJ-1538

TABLE 2
REFERENCE: C90/90A AIRCRAFT VMCA (w/PT6A-135A)
VMCA
Model Model Airspeed
OEM D9290K D9510SK
*(TCDS) (Marketing) Indication
KIAS KCAS KIAS KCAS KIAS KCAS

C90 --- 92 --- 92 --- 93

C90 KCAS
C90-1 --- 92 --- 92 --- 93

C90A 90 92 90 92 91 93

C90A C90B 80 82 90 92 91 93 KIAS

C90SE 90 92 90 92 91 93

Revision K: January 5, 2018 iv

BEECHCRAFT King Air C90/C90A Aircraft:
• Equipped with Raisbeck/Hartzell 4-Blade Propellers
• Equipped with P&W PT6A-135A Engines from Blackhawk

1.0 INTRODUCTION and APPROVAL

Information in this document supersedes similar information in applicable Beechcraft, Goodrich,
Hartzell, and Pratt & Whitney Maintenance and Service Manuals where applicable.
For all other procedures of rigging, installation, and maintenance, consults applicable existing
documents.
This document is intended to provide detailed instructions for the installation of both the
Raisbeck/Hartzell Quiet Turbofan Propeller System and Swept Blade Turbofan Propeller System on
Beechcraft King Air C90/C90A aircraft, when equipped with PT6A-135A engines per Blackhawk STC
SA10341SC.
These instructions are presented in a recommended sequence. However, some of the activities
presented may be accomplished concurrently to suit the installer’s schedule.

The Raisbeck/Hartzell Quiet/Swept Blade Turbofan Propeller System has been approved by the
Federal Aviation Administration (FAA) under Supplemental Type Certificate (STC) SA3593NM.
The installation of this system must conform to the FAA-Approved Raisbeck Engineering installation
figures and the instructions contained in this document.
Conformity verification of the installed system to the Raisbeck Engineering installation figures and
the instructions is the responsibility of the installation facility.

AUTOFEATHER MUST BE INSTALLED AS A PREREQUISITE.

2.0 SYSTEM DESCRIPTION

Each engine is equipped with a Raisbeck/Hartzell Quiet/Swept Blade Turbofan, four-blade, full-
feathering, constant-speed, counterweighted, reversing, variable-pitch propeller mounted on the
output shaft of the reduction gear box. The propeller pitch and speed are controlled by engine oil
pressure, through single-action, engine-driven propeller governors. Centrifugal counterweights,
assisted by a feathering spring, move the blades toward the low RPM (high pitch) position and into
the feathered position. Governor boosted engine oil pressure moves the propeller to the high RPM
(low pitch) hydraulic stop and reverse position. The propellers have no low RPM (high pitch) stops;
this allows the blades to feather after engine shut down.
Salient Features of the entire Raisbeck/Hartzell Quiet/Swept Blade Turbofan Propeller System
include:
1. Minimum cruise RPM is 1,900 RPM.
2. Ground minimum propeller RPM is 1,100 RPM.
3. Lightweight aluminum hubs, with all propeller adjustments external to the hub.
4. Small diameter (93 inches) high-twist aluminum blades, incorporating new high-lift airfoils
from root to tip. Additionally, these blades maintain their airfoil contours well into the spinner,
eliminating blockage to the nacelle inlet. The ITT reductions for equal torque are the result.
5. New Hartzell De-ice System, complete with circuit breakers and timers.
6. New low-drag aluminum propeller spinners.
7. The optional Raisbeck/Hartzell Swept Blade Turbofan Propeller is characterized by, a swept
blade design, with a larger diameter (96 inches), and more performance than Quiet Turbofan
Propeller.

Revision K: Page 1
BEECHCRAFT King Air C90/C90A Aircraft:
• Equipped with Raisbeck/Hartzell 4-Blade Propellers
• Equipped with P&W PT6A-135A Engines from Blackhawk

The Raisbeck/Hartzell Quiet Turbofan, four-bladed Propellers (HC-D4N-3C/D9290K) have a full

feathered angle of 84.5 degrees ±0.5 degree at the 30-inch station, a mechanical reverse pitch stop
of -9.0 degrees ±0.5 degree, and a low pitch stop of 20.1 degrees ±0.1 degree.
The Raisbeck/Hartzell Swept Blade Turbofan, four-bladed Propellers (HC-D4N-3C/D9510SK) have
a full feathered angle of 86.7 degrees ±0.5 degree at the 30-inch station, a mechanical reverse pitch
stop of -10.0 degrees ±0.5 degree, and a low pitch stop of 18.6 degrees ±0.1 degree.
Low pitch propeller position is determined by a mechanically monitored hydraulic stop. The
propeller servo piston is connected by four spring-loaded sliding rods to the slip ring mounted behind
the propeller. Movement is transferred through the propeller reversing lever to the Beta valve of the
governor. When the propeller is rotating at a speed lower than that selected on its governor, the
governor pump provides oil pressure to the servo piston and decreases the pitch of the propeller
blades until the feedback of motion from the slip ring pulls the Beta valve into position blocking the
supply of oil to the propeller, thus preventing further pitch changes.
Throughout this and referenced Beechcraft documentation, the term “Constant Speed Governor”,
“Propeller Governor” and “Primary Governor” are used interchangeably to refer to the same
mounted propeller speed control unit.

2.1 Optional Gross Weight Increase

Maximum Takeoff Weight (MTOW) and Maximum Landing Weight (MLW) of C90/C90A
aircraft increases to 10,500 lb and 9,700 lb respectively.
To facilitate this capacity, VMO has been reduced to 208 knots on some models to ensure no
degradation in their structural integrity or fatigue life. On newer C90A/C90B models, VMO of
226 KIAS is retained. Additionally, Raisbeck Dual Aft Body Strakes are required.
C90A airplanes installing Raisbeck/Hartzell Swept Blade Turbofan Propeller System
(D9510SK), and equipped with the following alterations, are eligible for the Raisbeck
14-C90GTRx FAA-Approved Flight Manual Supplement which provides factory new C90GTx
performance. (See Section 10.0, step 6)
• Raisbeck Dual Aft Body Strakes per STC SA4010NM
• Beechcraft Increased Maximum Operating Weight alteration per STC SA10747SC
• BLR Aerospace Winglet System per STC SA02054SE

Revision K: Page 2
BEECHCRAFT King Air C90/C90A Aircraft:
• Equipped with Raisbeck/Hartzell 4-Blade Propellers
• Equipped with P&W PT6A-135A Engines from Blackhawk

3.0 NECESSARY DOCUMENTATION

3.1 Raisbeck Engineering Supplied
Appropriate Raisbeck Engineering Inc. Installation & Rigging Procedures and FAA-Approved
Flight Manual Supplement documents are provided with the kit. If needed, supplemental
propeller de-ice system and brush block assembly maintenance, overhaul, and installation
documents are available upon request if modification facility is unable to procure them.

3.2 Customer/Installer Supplied

Publications supplied by the installer, which are referenced in the installation instructions:
1. Beechcraft King Air 90 Series Maintenance Manual
2. Beechcraft King Air Operator Manual
3. FAA Advisory Circular, AC 43.13.

3.3 References
Kit Contents: All installation material to be included in Kit No.:
86-2500-() Quiet Turbofan Propeller System (D9290K)
86-2500-()SB() Swept Blade Turbofan Propeller System (D9510SK)

4.0 PRE-INSTALLATION RUN-UP AND RIGGING CHECKS

4.1 Run-Up Checks
Run-up checks are required to ensure that all related systems are functioning properly before
the Raisbeck/Hartzell Quiet/Swept Blade Turbofan Propeller System is installed.

CAUTION: OBSERVE STANDARD FIRE AND PROPELLER SAFETY PRECAUTIONS.

MAKE SURE RAMP IS CLEAR BEFORE STARTING ENGINES.

Refer to the appropriate sections of the Beechcraft King Air Operator Manual and start
engines.
Refer to Beechcraft King Air 90 Series Maintenance Manual as required, Subjects 76-00-00
and 61-22-00, and check the following:
1. Overspeed Governor - Operational Check
2. Autofeather - Operational Check
3. Reversing System
a. N1 RPM increases - Operational Check
b. Maximum N1 RPM - Reading

Revision K: Page 3
BEECHCRAFT King Air C90/C90A Aircraft:
• Equipped with Raisbeck/Hartzell 4-Blade Propellers
• Equipped with P&W PT6A-135A Engines from Blackhawk

5.0 COCKPIT AND CABIN COMPONENT CHANGES

5.1 Propeller De-Ice Ammeter Change
•(LJ-502 thru LJ-1287, LJ-1289 thru LJ-1294, LJ-1296 thru LJ-1299)
•(LJ-1288, LJ-1295, LJ-1300 and subsequent C90SE only)
REF. FIGURE 2
On Models C90 airplanes, the ammeter is located in the pilot’s subpanel. On Model C90A,
C90B and C90SE airplanes, the ammeter is located in the overhead instrument panel.
1. Remove the propeller de-ice ammeter and route it to an instrument repair shop for the
following rework:
a. Change the green band from its present range of 14-18 ampere to 18-24 ampere.
b. Identify reworked ammeter using PLACARD (REI-1001-3).

NOTE: Take care to retain shunt, clean or replace if corroded, and re-install on ammeter prior to re-
installation in airplane.

2. Re-install reworked propeller de-ice ammeter.

5.2 Airspeed Indicator Rework

See TABLE 1 for serial number reference, and TABLE 2 for VMCA reference.

NOTE: No airspeed indicator rework required if equipped with Raisbeck/Hartzell Quiet Turbofan
Propeller System (D9290K) on Models C90, C90-1, C90A, or C90SE.

C90B equipped with Raisbeck/Hartzell Quiet Turbofan Propeller System (D9290K):

REF. FIGURE 3.1
1. Remove airspeed indicators and route them to an instrument repair shop for the
following rework:
a. Remove red radial (VMCA) at 80 knots (KIAS) and replace with red radial (VMCA) at 90
knots (KIAS).
b. Install PLACARD (REI-1001-3) on each instrument's housing.
2. Re-install reworked airspeed indicators.

C90B equipped with Raisbeck/Hartzell Swept Blade Turbofan Propeller System

(D9510SK):
REF. FIGURE 3.1
1. Remove airspeed indicators and route them to an instrument repair shop for the
following rework:
a. Remove red radial (VMCA) at 80 knots (KIAS) and replace with red radial (VMCA) at 91
knots (KIAS).
b. Install PLACARD (REI-1001-3) on each instrument's housing.
2. Re-install reworked airspeed indicators.

Revision K: Page 4
BEECHCRAFT King Air C90/C90A Aircraft:
• Equipped with Raisbeck/Hartzell 4-Blade Propellers
• Equipped with P&W PT6A-135A Engines from Blackhawk

C90A/C90SE equipped with Raisbeck/Hartzell Swept Blade Turbofan Propeller System

(D9510SK):
REF. FIGURE 3.1
1. Remove airspeed indicators and route them to an instrument repair shop for the
following rework:
a. Remove existing red radial (VMCA) at 90 knots (KIAS) and replace with red radial
(VMCA) at 91 knots (KIAS).
b. Install PLACARD (REI-1001-3) on each instrument's housing.
2. Re-install reworked airspeed indicators.

C90/C90-1 equipped with Raisbeck/Hartzell Swept Blade Turbofan Propeller System

(D9510SK):
REF. FIGURES 3.1
1. Remove airspeed indicators and route them to an instrument repair shop for the
following rework:
a. Remove existing red radial (VMCA) at 92 knots (KCAS) and replace with red radial
(VMCA) at 93 knots (KCAS).
b. Install PLACARD (REI-1001-3) on each instrument's housing.
2. Re-install reworked airspeed indicators.

5.3 Aircraft Equipped with Glass Cockpit

•(LJ-1063 and subsequent)

5.3.1 Aircraft Equipped with Garmin International G1000

5.3.1.1 Aircraft Equipped with Quiet Turbofan Propeller System (D9290K)

Configure your G1000 installation per Garmin International STC
SA01456WI-D, with instructions for the Quiet Prop (D9290K)
configuration.

5.3.1.2 Aircraft Equipped with Swept Blade Turbofan Propeller System

(D9510SK)
REF. FIGURE 2
The Garmin International STC SA01456WI-D was not yet amended to
include the Raisbeck Swept Blade Turbofan Propeller System
(D9510SK) at the time of this publication. If, at the time of your
installation, the Garmin STC is still not amended, please accomplish the
steps below to ensure compliance with Raisbeck STC SA3593NM for
this installation. When the Garmin STC is amended, you may update
the G1000 software for the Swept Blade Prop (D9510SK) configuration
and remove the PLACARD (REI-1001-10).
1. Configure your G1000 installation per Garmin International STC
SA01456WI-D, with instructions for the Quiet Prop (D9290K)
configuration.
2. Install VMCA Limitation PLACARD (REI-1001-10) on cockpit dash
centered above each AFD/MFD/PFD installation.

Revision K: Page 5
BEECHCRAFT King Air C90/C90A Aircraft:
• Equipped with Raisbeck/Hartzell 4-Blade Propellers
• Equipped with P&W PT6A-135A Engines from Blackhawk

5.4 Propeller De-Ice Switch/Circuit Breaker Replacement

•(LJ-502 thru LJ-1062)
REF. FIGURES 2 AND 10 THROUGH 14
Remove and discard the Propeller De-Ice 20-ampere SWITCH/CIRCUIT BREAKER (7270-5-
20) from the pilot’s subpanel. Install a new 25-ampere SWITCH/CIRCUIT BREAKER (7270-
1-25 or 7270-5-25) and attach to existing bus/wiring.

5.5 Overhead Light Panel Rework

•(LJ-502 thru LJ-1062 equipped with Swept Blade D9510SK)
REF. FIGURE 3
Revise existing AIRSPEED LIMITATION placard values for “MIN SINGLE ENGINE
CONTROL” as follows:

1. Change “92 KNOTS” to “93 KNOTS”.

2. Change “106 MPH” to “107 MPH”.

5.6 Propeller De-Ice Timer Replacement

•(LJ-502 thru LJ-953)
REF. FIGURES 8 AND 10 THROUGH 13
1. Gain access through the cabin floor, aft of Station 197, and remove and discard the
PROPELLER DE-ICE TIMER (3E1150-3, -7, or -10).
2. Locate the new PROPELLER DE-ICE TIMER (3E1964-3 or C45114) on the bracket at
the approximate center of the old timer location. Drill .218 (+0.011 or -0.000) (Ø7/32-
ref) holes in the bracket to match the holes in the mounting flanges of the new timer.
Install NUTPLATES (MS21059L3 or equivalent) on the lower side of bracket (4 places)
with RIVETS (MS20426AD3-() or equivalent).
3. Re-install bracket and install new timer with SCREW (NAS603-8P or equivalent) and
WASHER (NAS1149D0316J or equivalent).
4. Disconnect WIRE (H183A10) from pin C and WIRE (H180A10 or H180D12) from pin E
in the timer plug. Cap and stow these wires per AC 43.13.
5. Re-install cockpit and cabin furnishings as required.

NOTE: GOODRICH TIMER (3E1964-3) and MCCAULEY TIMER (C45114) are compatible with this
installation.

Revision K: Page 6
BEECHCRAFT King Air C90/C90A Aircraft:
• Equipped with Raisbeck/Hartzell 4-Blade Propellers
• Equipped with P&W PT6A-135A Engines from Blackhawk

6.0 ENGINE CHANGES

6.1 Removals
1. Remove engine cowlings (Ref. Beechcraft King Air 90 Series Maintenance Manual
Subject 71-10-00).
2. Remove and retain Beta arm and discard the carbon block.
3. Remove propellers (Ref. Beechcraft King Air 90 Series Maintenance Manual Subject
61-11-00).

REF. FIGURE 5
4. Remove and retain synchrophaser TARGET SCREWS (2E1377) from de-ice slip ring or
TARGET BRACKETS (90-960028-3 OR 90-960028-29) from spinner bulkhead,
whichever exists.
5. On airplanes with single synchrophaser target, also remove and retain the
COUNTERWEIGHT (90-960028-5 or 90-960028-23) from spinner bulkhead.
REF. FIGURE 4
6. On airplanes LJ-1542 and after, retain all bracketry, counterweights, magnetic pickups
and jam nuts, target screws, and attachment hardware.

6.2 Governor Rigging

6.2.1 Overspeed Governor Adjustment for 1,900 MAX RPM

Adjust the OVERSPEED GOVERNOR per the Beechcraft 90 Series Maintenance
Manual.
1. The OVERSPEED GOVERNOR test procedure is as follows:
a. With the engine running and the Power Levers at Idle, push the Propeller
Levers to the HIGH RPM position.
b. Hold the Prop Gov Test Switch in the PROP GOV TEST position.
c. Slowly increase the Power Levers while monitoring the Propeller
Tachometer. When properly adjusted and properly functioning the
Overspeed Governor will limit the propeller to 1,745 RPM +20/-0 RPM.

6.2.2 Constant Speed Governor Adjustment for 1,900 Max Propeller RPM
No adjustment should be necessary, however a full functionality check should be
performed to ensure that aircraft operation is acceptable.

Revision K: Page 7
BEECHCRAFT King Air C90/C90A Aircraft:
• Equipped with Raisbeck/Hartzell 4-Blade Propellers
• Equipped with P&W PT6A-135A Engines from Blackhawk

6.3 Propeller De-Ice Brush Block or Modular Brush Assembly and Bracket Changes

6.3.1 Removals and Bracket Change

•(LJ-502 thru LJ-904) (LJ-1288, LJ-1295, LJ-1300 and subsequent)
REF. FIGURE 4
1. Remove and retain brush block or modular assemblies.
2. Trim 0.20 inch from the front edge of the de-ice brush block bracket and
elongate slots 0.20 inch aft.

•(LJ-905 thru LJ-1287, LJ-1289 thru LJ-1294, LJ-1296 thru LJ-1299)

REF. FIGURE 4
1. Remove and retain brush block or modular assemblies.
2. Remove and retain the synchrophaser magnetic pick-ups and jam nuts.
3. Trim 0.20 inch from the front edge of the de-ice brush block bracket and
elongate slots 0.20 inch aft.
4. Trim the front edge of the synchrophaser magnetic pick-up mounting bracket to
clear the propeller bulkhead.

•(LJ-1288, LJ-1295, LJ-1300 thru LJ-1541)

REF. FIGURE 6

NOTE: Raisbeck BRACKET ASSEMBLY P/N 15BC-72-200-1 is a pre-trimmed replacement for the OEM
BRACKET ASSEMBLY P/N 50-910584-33.

1. Remove and discard the brush block assemblies.

2. Remove and retain the synchrophaser magnetic pick-up and jam nuts.
3. Remove and retain the propeller balancer magnetic pick-up and jam nuts.
4. Remove and discard the magnetic pick-up mounting bracket and attach
hardware.
5. Remove and discard the brush block mounting bracket, retain attach hardware.
6. Trim .20 inches from the front edge of the new BRUSH BLOCK MOUNTING
BRACKET (50-910584-33) and elongate slots .20 inches aft.
7. Install the modified BRUSH BLOCK MOUNTING BRACKET using retained
hardware.
8. Install new BRACKET ASSEMBLY (92-2502-1) using BOLTS (AN3-5A),
LOCKWASHER (MS35335-32). WASHER (NAS1149F0363P) and NUT
(MS21043-3) two places per bracket.

Revision K: Page 8
BEECHCRAFT King Air C90/C90A Aircraft:
• Equipped with Raisbeck/Hartzell 4-Blade Propellers
• Equipped with P&W PT6A-135A Engines from Blackhawk

6.3.2 Brush Block or Modular Brush Assembly Change

•(LJ-502 thru LJ-1062)
REF. FIGURES 10 THROUGH 14
1. On airplanes with Brush Block Assemblies (4E1311-2), remove and discard the
top brush and spring. Cap and stow per AC 43.13 the WIRE H190C16,
H180C16 or H180C10 attached to Pin “A” of the brush block assembly plug.
Remove WIRE H191A16, H181D16N, or H181D10N from pin “C” of the brush
block assembly plug and re-terminate at pin “A”.

REF. FIGURES 10 THROUGH 13

2. On airplanes with Modular Brush Block Assemblies (3E2044-1), remove and
discard MODULE A. Reassemble modular assembly with SCREWS (MS51957-
50), WASHERS (NAS1149CN816R), and NUTS (MS21045-08) two places per
brush assembly. Cap and stow per, AC 43.13, WIRE H190A16, H180C16, or
H180C10 that was attached to module A.

•(LJ-954 thru LJ-1062)

REF. FIGURE 14
Verify that the wire between the left engine forward fire seal and firewall is AWG 12
or larger gauge. If it is AWG 14 or smaller gauge, remove and replace with an
AWG 12 wire marked H179B12.

•(LJ-1288, LJ-1295, LJ-1300 and subsequent) (C90SE No rework required)

REF. FIGURE 6
Install new BRUSH BLOCK ASSEMBLY (3E2090-1) using SCREWS (MS51957-
50), WASHERS (NAS1149CN816R), and NUTS (MS21045-08) two places per
brush block.

6.3.3 Propeller De-Ice Brush Inspection

•(LJ-502 thru and subsequent)
Inspect and replace brushes, if required (Ref. Beechcraft King Air 90 Series
Maintenance Manual Subject 30-60-00, maintenance, and overhaul for Goodrich
Modular Brush and Brush Block Assemblies Report No. 68-04-714).

6.4 Synchrophaser Magnetic Pick-Up Installation

•(LJ-905 thru LJ-1287, LJ-1289 thru LJ-1294, LJ-1296 thru LJ-1299)
REF. FIGURE 4
Re-install the synchrophaser magnetic pick-up with jam nut on the outside of bracket to
increase the adjustment length of magnetic pick-up. Ensure that the left and right engines
are identical and that pick-up location is as shown.

•(LJ-1288, LJ-1295, LJ-1300 thru LJ-1541)

REF. FIGURE 6
Re-install the synchrophaser magnetic pick-up with jam nut on the outside of bracket to
increase the adjustment length of magnetic pick-up. Ensure that the left and right engines
are identical and that pick-up location is as shown.

Revision K: Page 9
BEECHCRAFT King Air C90/C90A Aircraft:
• Equipped with Raisbeck/Hartzell 4-Blade Propellers
• Equipped with P&W PT6A-135A Engines from Blackhawk

6.5 Synchrophaser Target Installation

6.5.1 Target-Screw Installation

•(LJ-502 thru LJ-904)
REF. FIGURE 5
1. Install six (6) retained and two (2) new Goodrich SCREWS (2E1377) in the pre-
tapped holes in the slip ring outer surface with Loctite C and torque to 2-3 lb-in
as follows:
a. Left Engine Propeller - four (4) screws aligned with blade centerlines.
b. Right Engine Propeller - four (4) screws 65 degrees counterclockwise
(CCW) from blade centerline as viewed from rear.

•(LJ-1542 and subsequent)

REF. FIGURE 4
1. Install the two (2) retained MAGNETIC PHASE TARGET SCREWS (3360-078),
with NUT (MS21043-06) and WASHER (NAS1149CN616R) in the spinner
bulkhead such that:
a. The left engine propeller synchrophaser target screw is installed at 7.26
inches from the centerline of the hub and 5 degrees counterclockwise
(CCW) from blade centerline and viewed from the rear.
b. The right engine propeller synchrophaser target screw is installed at 7.26
inches from the centerline of the hub and 20 degrees clockwise (CW) from
blade centerline and viewed from the rear.
2. Re-install retained counterweights.

6.5.2 Multiple Target Bracket Rework and Installation

•(LJ-905 thru LJ-985, LJ-987 thru LJ-995, LJ-997 thru LJ-1010)
REF. FIGURE 5
1. Carefully bend the six (6) retained and two (2) new (Beechcraft P/N 90-960028-
3) target brackets (closed angle) from 90 degrees to approximately 80 degrees
as shown.
2. Install three (3) retained and one (1) new target brackets (Beechcraft P/N 90-
960028-3 as reworked) on the aft side of each spinner. Install each bracket with
BOLT (AN3-5A), positioning LOCKWASHER (MS35335-32) between bracket
and aft side of spinner bulkhead, with WASHER (NAS1149F0332P) and NUT
(MS21043-3) on the forward side of the spinner bulkhead as shown. Position
target brackets for left and right propellers as follows:
a. Left Engine Propeller - Four (4) brackets 5 degrees counterclockwise (CCW)
from blade centerline as viewed from rear, in drilled holes 7.35 inches radius
from hub centerline.
b. Right Engine Propeller - Four (4) screws 20 degrees clockwise (CW) from
blade centerline as viewed from rear, in drilled holes 7.35 inches radius from
hub centerline.

Revision K: Page 10
BEECHCRAFT King Air C90/C90A Aircraft:
• Equipped with Raisbeck/Hartzell 4-Blade Propellers
• Equipped with P&W PT6A-135A Engines from Blackhawk

6.5.3 Single Target Bracket Rework and Installation

•(LJ-986, LJ-996, LJ-1011 thru LJ-1287, LJ-1289 thru LJ-1294, LJ-1296 thru
LJ-1299)
REF. FIGURE 5
1. Carefully bend the two (2) retained (Beechcraft P/N 90-960028-3) target
brackets (closed angle) from 90 degrees to approximately 80 degrees as
shown.
2. Install one (1) target bracket (Beechcraft P/N 90-960028-3 as reworked) on the
aft side of each spinner. Install bracket with BOLT (AN3-5A), positioning
LOCKWASHER (MS35335-32) between bracket and aft side of spinner
bulkhead, with WASHER (NAS1149F0332P) and NUT (MS21043-3) on the
forward side of spinner bulkhead as shown. Position target brackets for left and
right propellers as follows:
a. Left Engine Propeller - One (1) bracket 5 degrees counterclockwise (CCW)
from blade centerline as viewed from rear, in drilled holes 7.35 inches from
hub centerline.
b. Right Engine Propeller - One (1) bracket 20 degrees clockwise (CW) from
blade centerline as viewed from rear, in drilled holes 7.35 inches radius from
hub centerline.
3. Install retained COUNTERWEIGHT (90-960028-5) on the spinner bulkhead 180
degrees from target in drilled hole.

Revision K: Page 11
BEECHCRAFT King Air C90/C90A Aircraft:
• Equipped with Raisbeck/Hartzell 4-Blade Propellers
• Equipped with P&W PT6A-135A Engines from Blackhawk

6.5.4 Magnetic Target Bracket Rework and Installation

•(LJ-1288, LJ-1295, LJ-1300 thru LJ-1541)
REF. FIGURE 6
1. Remove existing magnetic pick-up (3360-078) from target bracket (90-60028-29
or -39), retaining hardware, and bend the target bracket from 90 degrees to
approximately 70 degrees, as shown in FIGURE 6. Re-install the magnetic
pick-up (3360-0789) into the modified target bracket using the retained
hardware.
2. Install the target bracket (90-960028-029 or -39) per detail A of FIGURE 6.
Position target brackets for left-hand and right hand propellers as follows:
a. Position left-hand bracket 5 degrees counterclockwise (CCW) from blade
centerline, as viewed from the rear, in existing hole 7.35 inches radius from
the hub centerline.
b. Position right-hand bracket 20 degrees clockwise (CW) from blade
centerline, as viewed from the rear, in existing hole 7.35 inches radius from
the hub centerline.
3. Re-install the existing COUNTERWEIGHTS (90-960028-23) to the spinner
bulkhead with SCREW (AN525-10R10), WASHER (NAS1149F0332P), and
NUT (MS21043-3).

6.6 Propeller Installation

Reference Figure 7 for propeller general arrangement.
Reference Figure 4 and Figure 6 for de-ice brush block general arrangement and
synchrophaser pick-up general arrangement.
1. Install the propellers and spinners in accordance with Hartzell Propeller Owner’s Manual
and Logbook 149 (Chapter 3, INSTALLATION AND REMOVAL).

NOTE: New beta ring carbon blocks and propeller/spinner installation hardware are provided
by Hartzell. New de-ice brush block assemblies are provided with Raisbeck Kit No.
86-2500-(). Use only new parts for propeller installation.

2. Adjust the de-ice brush blocks in accordance with Goodrich/UTI De-icing and Specialty
Systems Component Maintenance Manual, Brush Assemblies, Electrothermal De-Icing
Systems, ATA 30-60-01.
3. Adjust the alignment and clearance between the targets and magnetic pick-ups in
accordance with the King Air 90 Series Maintenance Manual.
4. Tighten the jam nut on the pick-up to a maximum of 25 lb-in and lockwire.

Revision K: Page 12
BEECHCRAFT King Air C90/C90A Aircraft:
• Equipped with Raisbeck/Hartzell 4-Blade Propellers
• Equipped with P&W PT6A-135A Engines from Blackhawk

6.7 Synchrophaser Magnetic Pick-Up Rigging

NOTE: The less clearance between magnetic pickup and target, the more powerful the synchrophaser.

6.7.1 Magnetic Pick-Up Rigging - Target Screws

1. Adjust clearance between target screws and the magnetic pick-up per
Beechcraft King Air 90 Series Maintenance Manual Subject 61-25-00 or
61-26-00.
2. Torque jam nut to a maximum of 25 lb-in and lockwire.

6.7.2 Magnetic Pick-Up Rigging - Single Target Brackets

NOTE: Some angular adjustment of the target brackets may be required, so the clearance between
brackets and pick-up is even across the face of the pick-up.

1. Adjust clearance between target brackets and the magnetic pick-up per
Beechcraft King Air 90 Series Maintenance Manual Subject 61-25-00 or
61-26-00.
2. Torque jam nut to a maximum of 25 lb-in and lockwire.

6.8 Propeller Brush Block or Modular Brush Assembly Installation and Adjustment
Re-install the reworked brush block or modular assembly with SHIMS (1E1157) and adjust
using Goodrich ALIGNMENT TEMPLATE (3E2238) per Goodrich instructions.

7.0 PRE-RUN INSPECTION AND CHECKS

1. Rig the engine controls for reversing propellers per Beechcraft King Air 90 Series Maintenance
Manual Subject 76-00-00.
2. Perform a detailed inspection of all work accomplished.
REF. FIGURE 7
3. Install propeller SPINNER DOME, using SHIMS (B-632), as required, between CENTERING
CONE (C-498) and propeller dome.
4. Attach spinner to propeller aft bulkhead using SCREWS (AN526C1032R8) and WASHERS
(A-1020), 20 places.
5. Install engine cowlings (Ref. Beechcraft King Air 90 Series Maintenance Manual Subject
71-10-00).
6. Rotate propeller by hand and functionally check the de-ice system for operation.

Revision K: Page 13
BEECHCRAFT King Air C90/C90A Aircraft:
• Equipped with Raisbeck/Hartzell 4-Blade Propellers
• Equipped with P&W PT6A-135A Engines from Blackhawk

8.0 POST-INSTALLATION RUN-UP CHECKS AND ADJUSTMENTS

CAUTION: OBSERVE STANDARD FIRE AND PROPELLER SAFETY PRECAUTIONS. MAKE SURE
RAMP IS CLEAR BEFORE STARTING ENGINES.

Refer to Beechcraft King Air Operator Manual and start engines. Accomplish the checks and
adjustments as follows:

NOTE: If this check is not being performed under zero wind conditions, take an average of the upwind
and downwind readings to obtain valid results.

CAUTION: WHEN ACCOMPLISHING THE NEXT STEP, MAKE SURE THAT THE AUTOFEATHER
SYSTEM IS OFF.

8.1 Takeoff RPM Check

Run engines to check maximum propeller RPM of 1,900 RPM. Adjust using maximum
RPM stop-screw.

8.2 Power Symmetry and Low Pitch Stop Check

1. With the propeller levers fully forward, advance the cockpit power lever until the
propeller reaches 1,800 RPM. The torquemeter reading for the engine should equal the
value specified by the Low Pitch Torque Check Chart A (+20/-0 lb-ft) on page 16.
2. Repeat the check on the other engine. The difference between the torquemeter
readings on the engines should not exceed 20 lb-ft. If the torquemeter readings do not
fall within the limitations described above, or the difference between the engines
exceeds 20 lb-ft, the following adjustments are required:
a. Adjust the stop (Beta) nut on each of the four (4) low pitch stop rods for the propeller.
All four (4) nuts be adjusted to an identical setting (Ref. Figure 7). One flat of
rotation on the Beta nuts (clockwise to increase or counterclockwise to decrease)
changes engine torque approximately 20 lb-ft. Adjust the Beta nuts as necessary to
bring the engine within the prescribed limits. DO NOT USE THE BETA VALVE FOR
THIS ADJUSTMENT.

8.3 Low Idle Propeller RPM Adjustment

Adjust low-idle up or down to achieve propeller RPM of 1,100 RPM +50/-0 RPM.

NOTE: Adjust as close as possible to 1,100 RPM to minimize “fast taxi”.

NOTE: Per STC SA3593NM the propeller RPM must be set at 1,100 RPM +50/-0 RPM.

8.4 Propeller Autofeathering System

Check autofeather operation (Ref. Beechcraft King Air 90 Series Maintenance Manual
Subject 61-23-00).

8.5 Overspeed Governor Operational Check

Check the operation (Ref. Beechcraft King Air 90 Series Maintenance Manual Subject
61-21-00).

Revision K: Page 14
BEECHCRAFT King Air C90/C90A Aircraft:
• Equipped with Raisbeck/Hartzell 4-Blade Propellers
• Equipped with P&W PT6A-135A Engines from Blackhawk

NOTE: Reference section 6.2 of this manual.

8.6 Propeller Feathering System

1. Advance the propeller lever to Full High RPM position and advance the Power Lever to
obtain MAX RPM.
2. Pull Propeller Lever back past the detent (into FEATHER POSITION) and observe the
RPM at the start of feather. (NOTE: Observe engine torque limits). This RPM should
be 1,600 RPM ±25 RPM.
3. Adjust the Feathering Lift Rod on the Constant Speed Governor as necessary
(clockwise to lower RPM for start of feather).

8.7 Fuel Cutoff Lever Adjustments

Rig per Beechcraft King Air 90 Series Maintenance Manual, Subject 76-00-00.

8.8 Check and Service Engine Oil (As Required)

Ref. Beechcraft King Air 90 Series Maintenance Manual, Subject 12-10-00.

Revision K: Page 15
BEECHCRAFT King Air C90/C90A Aircraft:
• Equipped with Raisbeck/Hartzell 4-Blade Propellers
• Equipped with P&W PT6A-135A Engines from Blackhawk

9.0 OPTIONAL GROSS WEIGHT INCREASE INSTALLATION

NOTE: Not applicable to aircraft equipped with Beechcraft Increased Maximum Operating Weight
alteration per STC SA10747SC.

NOTE: To comply with the requirements of the STC SA3593NM, for Gross Weight Increase to MTOW
10,500 lb and MLW 9,700 lb, the following operations must be accomplished in addition to the
installation of the Raisbeck/Hartzell Quiet Turbofan or Swept Blade Propeller System.

Installation of the optional gross weight increase components requires use of the Raisbeck
Engineering Airplane Flight Manual Supplement C90-135A-1900 (Quiet prop D9290K) or 13-C90-
135A-1900 (Swept Blade prop D9510SK). MAKE SURE that the correct Flight Manual Supplement
is inserted into the Pilot’s Operating Handbook (see Section 10.0, step 6).
1. Install Raisbeck Dual Aft Body Strakes per STC SA4010NM. Refer to Raisbeck Engineering
Document 87-2024, “Installation Instructions; Raisbeck Engineering Dual Aft Body Strakes
System for the Beechcraft King Air 90, A90, B90, C90, and E90”.
2. On airplanes LJ-527 through LJ-600, verify the LANDING GEAR PISTON ASSEMBLY,
Beechcraft P/N 50-810370-1, is installed.
3. Verify that 10-PLY RATED MAIN LANDING TIRES, (Beechcraft P/N 50-300010-141, or
equivalent) are installed. Lesser ply rated tires limit operation to MTOW 10,100 lb.

•(LJ-1063 thru LJ-1137, LJ-1146)

REF. FIGURE 3
1. Fabricate and install airspeed limitation PLACARD (REI-1001-4) on overhead panel (sketch of
placard provided with kit. (Sample below).

AIRSPEED LIMITATIONS
MAX OPERATION 208 KNOTS (SL TO 20,300 FT.) DECREASE BY 4 KNOTS FOR EVERY 1,000 FT. ABOVE 20,300 FT.

2. Remove the airspeed indicators and route them to an instrument repair shop for the following
changes (unless G1000 equipped):
a. Remove the red radial (VMO) at 226 knots (KIAS) and replace with a red radial (VMO) at 208
knots (KIAS).
b. Install PLACARD (REI-1001-3) on each reworked instrument’s housing.
3. Re-install reworked airspeed indicators.
4. Install jacking weight limitation PLACARD (P/N REI-1001-5) on the outboard edge of the top step
of the entry stairs. Placard reads as follows:

DO NOT JACK THIS AIRCRAFT AT GROSS WEIGHTS ABOVE 10,160 LB

Revision K: Page 16
BEECHCRAFT King Air C90/C90A Aircraft:
• Equipped with Raisbeck/Hartzell 4-Blade Propellers
• Equipped with P&W PT6A-135A Engines from Blackhawk

10.0 RETURN AIRPLANE TO SERVICE

1. Make appropriate log book entry in Airplane Logbook.
Example: Installed Raisbeck/Hartzell Quiet Turbofan Propeller System per STC SA3593NM. Weight and
balance revised. Removed propellers P/N _______ S/N _______ Left; S/N _______ Right.
Installed propeller P/N HC-D4N-3C/D9290K S/N _______ Left; S/N _______ Right. Removed
propeller De-Ice Timer P/N _______ S/N _______ and installed P/N 3E1964-3 S/N _______.

NOTE: If the optional Gross Weight Increase has been concurrently installed on the airplane, ensure
that similar entries covering the Gross Weight Increase and Dual Aft Body Strakes have been
made.

2. Complete three (3) copies of FAA Form 337. Give one (1) copy to the aircraft owner/operator,
mail one (1) copy to the FAA Aircraft Registration Branch in Oklahoma City (may be submitted
electronically), and retain one (1) copy for the installer’s records.
3. Revise weight and balance data in Airplane Flight Manual:
ADD: Raisbeck/Hartzell Quiet Turbofan Propeller System (D9290K)
or
ADD: Raisbeck/Hartzell Swept Blade Turbofan Propeller System (D9510SK)
Propeller System WEIGHT (lb) ARM (in) MOMENT (lb-in)
Quiet Turbofan Propellers (D9290K) +294.8 49.0 +14,445.2
Swept Blade Turbofan Propellers (D9510SK) +292.4 49.0 +14,327.6
Existing Propellers Refer to Aircraft Equipment List.
REF. FIGURE 9
4. Install red metal tag (P/N REI-1001-1) on engine mount brace near fuel control on right side of
engine in plain view of maintenance personnel. Contour tag to conform to brace profile and use
ATACS 5103A/B epoxy (BMS 5-123, Type 1, Class 2) or equivalent, to secure tag to brace.

NOTICE
THIS AIRCRAFT IS RAISBECK–
EQUIPPED. CONSULT APPLICABLE
RAISBECK ENGINEERING RIGGING
INSTRUCTIONS WITH A/C PAPERS,
OR CALL RAISBECK SERVICE AT
(206) 723-2000
OR
1-800-537-7277
P/N REI-1001-1

5. Add this manual, “Installation and Rigging Procedures” C90-135A-IM, to aircraft papers. If the
optional Gross Weight Increase has been concurrently installed on the airplane, add 87-2024
(Dual Aft Body Strakes Installation and Rigging Procedures) to aircraft’s papers.

Revision K: Page 17
BEECHCRAFT King Air C90/C90A Aircraft:
• Equipped with Raisbeck/Hartzell 4-Blade Propellers
• Equipped with P&W PT6A-135A Engines from Blackhawk

6. Insert the proper Flight Manual Supplement into Pilot’s Operating Handbook:
a. Insert Flight Manual Supplement 09-135-206 (Quiet prop D9290K) or 13-135-206 (Swept
Blade prop (D9510SK) into Pilot’s Operating Handbook.
b. If the optional Gross Weight Increase was concurrently installed on the airplane per Section
9.0, insert Flight Manual Supplement C90-135A-1900 (Quiet prop D9290K) or 13-C90-135A-
1900 (Swept Blade prop (D9510SK) into Pilot’s Operating Handbook instead.
c. If the aircraft is equipped with the Swept Blade Turbofan Propeller System (D9510SK) and all
of the following alterations, insert Flight Manual Supplement 14-C90GTRx into Pilot’s
Operating Handbook.
• Raisbeck Dual Aft Body Strakes per STC SA4010NM
• Beechcraft Increased Maximum Operating Weight alteration per STC SA10747SC
• BLR Aerospace Winglet System per STC SA02054SE
7. Complete Installation Record Form 145-() included in data package and remit to:
Raisbeck Engineering Inc.
4411 South Ryan Way
Seattle, Washington 98178
Telephone (US & Canada): 800-537-7277
Telephone (International): 206.723.2000
Facsimile: 206-723-2884
E-mail: CustomerService@Raisbeck.com

Revision K: Page 18
BEECHCRAFT King Air C90/C90A Aircraft:
• Equipped with Raisbeck/Hartzell 4-Blade Propellers
• Equipped with P&W PT6A-135A Engines from Blackhawk

RAISBECK/HARTZELL FOUR-BLADED
PROPELLER LOW PITCH TORQUE

CHART A

Revision K: Page 19
FOR SWEPT PROPELLER (D9510SK) EQUIPPED ACFT ONLY:
FOR GARMIN G1000-EQUIPPED C90A/C90B/C90SE ONLY:
INSTALL P/N REI-1001-10 PLACARD ABOVE EACH INSTALLED
MFD/PFD AS SHOWN.

REMOVE EXISTING AMMETER

AND RE-RANGE MARK.

OVERHEAD INSTRUMENT PANEL REWORK

LJ-1063 THRU LJ-1287
LJ-1289 THRU LJ-1294
LJ-1296 AND SUBSEQUENT

PLACARD INSTALLATION
SWEPT PROP (D9510SK) WITH GARMIN G1000

REMOVE EXISTING 20 AMP SWITCH/CIRCUIT

BREAKER AND REPLACE WITH (7270-1-25 OR 7270-5-25)
(25 AMP) SWITCH/CIRCUIT BREAKER

GREEN ARC GREEN ARC

(14 TO 18) (18 TO 24)
REMOVE EXISTING AMMETER AND RE-RANGE MARK

10 20 10 20

0 PROP AMPS 0 PROP AMPS

30 30
PILOTS SUBPANEL REWORK
Beechcraft Beechcraft
LJ-502 THROUGH LJ-1062

UNLESS OTHERWISE SPECIFIED DRAWN

D. CASTNER 08-19-86 RAISBECK ENGINEERING
EXISTING
DIMENSIONS ARE IN INCHES

AS CHANGED -TOLERANCES- CHECK

A. ERDAHL 08-28-86
SEATTLE, WASHINGTON
DECIMALS ANGULAR
ENGR
.X ± .1 ± 2° A. ERDAHL 08-28-86

PROPELLER DE-ICE AMMETER CHANGE COCKPIT CHANGES

.XX ± .03 STRESS
.XXX ± .010
APPVD
IDENTIFY REWORKED METER USING REI-1001-3 PLACARD
RIVET AND BOLT E.M. ± .05
J.D.R. 08-29-86
SM CORNER RADII:
.19
INTERNAL .16 PROPRIETARY NOTICE
FIGURE 2
.16 SIZE DWG NO. REV LTR

D
.25 RAISBECK ENGINEERING PROPRIETARY RIGHTS ARE IN-
EXTERNAL .22 CLOSED IN THE INFORMATION DISCLOSED HEREIN.
PART NEXT ASSY USED ON .00 NEITHER THIS DOCUMENT NOR THE INFORMATION DIS-
DOC C90-135A-IM
SM BEND RADII: CLOSED HEREIN SHALL BE REPRODUCED, USED OR DIS-
DASH CLOSED IN WHOLE OR IN PART WIHTOUT WRITTEN

APPLICATION
.03R & .06R ± .01 PERMISSION OF RAISBECK ENGINEERING. THE FOLLOW-
NO. .09R & GREATER ± .03
ING DOES NOT APPLY TO VENDOR DATA. SCALE: NONE RLSE DATE: __ SHEET:
 OVERHEAD LIGHT PANEL REWORK

REI-1001-4 PLACARD
LOCATE APPROX. AS SHOWN

WAS: 106
IS: 107

WAS: 92
IS: 93

AIRSPEED LIMITATIONS
FLAP EXTENSION (APPROACH) 174 KNOTS (200 MPH) MIN SINGLE ENGINE CONTROL 93 KNOTS ( 107 MPH)
FLAP EXTENSION (DOWN) 130 KNOTS (150 MPH) MAXIMUM MANUEVERING 169 KNOTS (196 MPH)
MAIN GEAR EXTENDED (NORM) 156 KNOTS (180 MPH) MAX GEAR RETRACT 130 KNOTS (150 MPH)
THIS AIRPLANE MUST BE OPERATED AS A
NORMAL CATEGORY AIRPLANE IN COMP-
LIANCE WITH THE OPERATING LIMITATIONS
STATED IN THE FROM OF PLACARDS, MARK-
INGS, AND MANUALS.
NO ACROBATIC MANEUVERS INCLUDING
SPINS ARE APPROVED.

CAUTION
STANDBY COMPASS IS ERATIC WHEN
WUNDSHIELD ANTI-ICE AND/OR AIRCOND-
ITIONER AND/OR ELECTRIC HEAT IS ON.

C90 & C90-1 ACFT EQUIPPED WITH D9510SK (SWEPT) PROP

LJ-502 THRU LJ-1062

AIRSPEED LIMITATIONS
MAX OPERATION 208 KNOTS (SL TO 20.300 FT.) DECREASE BY 4 KNOTS FOR EVERY 1,000 FT. ABOVE 20,300 FT.

AIRCRAFT WITH OPTIONAL GROSS WEIGHT INCREASE

LJ-1063 THRU LJ-1137 & LJ-1146 ONLY
REI-1001-4 PLACARD

RED RADIAL
300 40 300 40
226 KNOTS 60 60
RED RADIAL
260 260
KNOTS 208 KNOTS KNOTS
80 80
220 220

Beechcraft Beechcraft
100 100
180 180
140 140

EXISTING AS CHANGED UNLESS OTHERWISE SPECIFIED DRAWN

DIMENSIONS ARE IN INCHES
RAISBECK ENGINEERING
-TOLERANCES- CHECK SEATTLE, WASHINGTON

AIRSPEED INDICATOR CHANGE DECIMALS

.X ± .1
ANGULAR
± 2°
ENGR

AIRCRAFT WITH OPTIONAL GROSS WEIGHT INCREASE

LJ-1063 THRU LJ-1137 AND LJ-1146 ONLY
.XX
.XXX
±
±
.03
.010
STRESS
COCKPIT CHANGES
RIVET AND BOLT E.M. ± .05 APPVD
IDENTIFY REWORKED INDICATOR USING REI-1001-3 PLACARD SM CORNER RADII:
.19
INTERNAL .16 PROPRIETARY NOTICE
.16 SIZE DWG NO. REV LTR
RAISBECK ENGINEERING PROPRIETARY RIGHTS ARE IN-
FIGURE 3
.25
D
CLOSED IN THE INFORMATION DISCLOSED HEREIN.
EXTERNAL .22
PART NEXT ASSY USED ON .00 NEITHER THIS DOCUMENT NOR THE INFORMATION DIS-
C90-135A-IM
SM BEND RADII: CLOSED HEREIN SHALL BE REPRODUCED, USED OR DIS-
DASH CLOSED IN WHOLE OR IN PART WITHOUT WRITTEN

APPLICATION
.03R & .06R ± .01
NO. .09R & GREATER ± .03
PERMISSION OF RAISBECK ENGINEERING. THE FOLLOW- SCALE: RLSE DATE: __ SHEET:
ING DOES NOT APPLY TO VENDOR DATA.
 RED RADIAL
80 KNOTS (KIAS)(C90B)
90 KNOTS (KIAS)(C90A/C90SE)
92 KNOTS (KCAS)(C90/C90-1)

300 40 300 40
60 60
260 260
KNOTS KNOTS
80 80
220 220

Beechcraft Beechcraft
100 100
180 180
140 140
RED RADIAL
91 KNOTS (KIAS)(C90A/C90B/C90SE)
NOTE: NO AIRSPEED INDICATOR REWORK REQUIRED 93 KNOTS (KCAS)(C90/C90-1)
ON MODEL C90/C90-1/C90A/C90SE AIRCRAFT
EQUIPPED WITH D9290K (STANDARD) PROP. EXISTING AS CHANGED

RED RADIAL
80 KNOTS (KIAS)(C90B ONLY)
AIRSPEED INDICATOR CHANGE
IDENTIFY REWORKED INDICATOR USING REI-1001-3 PLACARD

300 40
60
300 40
60 D9510SK
260
KNOTS
260
KNOTS
(SWEPT PROP)
80 80
220 220

Beechcraft Beechcraft
100 100
180 180
RED RADIAL
140 140 90 KNOTS (KIAS)(C90B ONLY)

AS CHANGED
EXISTING UNLESS OTHERWISE SPECIFIED DRAWN
DIMENSIONS ARE IN INCHES
J.W. JR. 01-07-92 RAISBECK ENGINEERING
CHECK SEATTLE, WASHINGTON
-TOLERANCES-
A. ERDAHL 01-08-92
AIRSPEED INDICATOR CHANGE
DECIMALS ANGULAR
ENGR
.X ± .1 ± 2° AL. ERDAHL 01-08-92
IDENTIFY REWORKED INDICATOR USING REI-1001-3 PLACARD .XX
.XXX
±
±
.03
.010
STRESS
COCKPIT CHANGES
D9290K RIVET AND BOLT E.M.
SM CORNER RADII:
± .05 APPVD

(QUIET PROP)
.19
INTERNAL .16 PROPRIETARY NOTICE
.16 SIZE DWG NO.
FIGURE 3.1 REV LTR

D
RAISBECK ENGINEERING PROPRIETARY RIGHTS ARE IN-
.25
EXTERNAL .22 CLOSED IN THE INFORMATION DISCLOSED HEREIN.
PART NEXT ASSY USED ON .00 NEITHER THIS DOCUMENT NOR THE INFORMATION DIS-
DOC C90-135A-IM
CLOSED HEREIN SHALL BE REPRODUCED, USED OR DIS-
SM BEND RADII:
DASH CLOSED IN WHOLE OR IN PART WIHTOUT WRITTEN

APPLICATION
.03R & .06R ± .01 PERMISSION OF RAISBECK ENGINEERING. THE FOLLOW-
NO. .09R & GREATER ± .03
ING DOES NOT APPLY TO VENDOR DATA. SCALE: NONE RLSE DATE: __ SHEET:
 FEATHERING LIFT ROD
CONTROL LEVER
CLAMPING SCREW CONTROL LEVER

PREFIX EXISTING PART PUSH-PULL CONTROL ROD

NUMBER WITH "R" STOP BRACKET
JAM NUT
ROD END

PART NO. WOODWARD SERIAL

FEATHER STOP SCREW

R 8210-002 XXXXXX

MARK OUT PART

ENG. MFG. NO.
NUMBER IN THIS AREA
WOODWARD GOVERNOR COMPANY
ROCKFORD ILLINOIS. USA CONSTANT SPEED GOVERNOR
(LOOKING AFT)
CONSTANT SPEED GOVERNOR PUSH-PULL CONTROL ROD ROTATED FOR CLARITY

NAMEPLATE ALTERATION

CONSTANT SPEED
GOVERNOR

PROPELLER
BULKHEAD
DO NOT INSTALL
WASHERS BETWEEN
BRACKETS AND ENGINE

A
.75

TRIM BRACKET
AS SHOWN

RELOCATE JAM
NUT AS SHOWN BRUSH BLOCK
MOUNTING BRACKET
A
LJ-1542 AND AFTER
SYNCHROPHASER MOUNTING BRACKET
VIEW A-A LJ-905 THRU LJ-1287,
LJ-1289 THRU LJ-1294,
LJ-905 THRU LJ-1287 LJ-1296 THRU LJ-1299
LJ-1289 THRU LJ-1294
LJ-1296 THRU LJ-1299
LJ-1288, LJ-1295, LJ-1300 THRU LJ-1541
REWORK SLOTS
AS SHOWN

TRIM BRACKET
AS SHOWN
SEE FIGURE 6 FOR BRUSH MOUNTING BRACKET MODIFICATION/INSTALLATION
AND FOR SYNCHROPHASER/PROPELLER BALANCER PICK-UP BRACKET INSTALLATION
ON LJ-1288, LJ-1295, LJ-1300 THRU LJ-1541, EXCEPT C90SE.

.20 IN UNLESS OTHERWISE SPECIFIED DRAWN

DIMENSIONS ARE IN INCHES
RAISBECK ENGINEERING
-TOLERANCES- CHECK SEATTLE, WASHINGTON
DECIMALS ANGULAR
ENGR

ENGINE RELATED
.X ± .1 ± 2°
.XX ± .03 STRESS
.20 IN .XXX ± .010
RIVET AND BOLT E.M. ± .05 APPVD
CHANGES
SM CORNER RADII:

BRUSH BLOCK MOUNTING BRACKET INTERNAL .16

.19
.16
PROPRIETARY NOTICE
RAISBECK ENGINEERING PROPRIETARY RIGHTS ARE IN- SIZE DWG NO.
FIGURE 4
REV LTR

ALTERATION .25
D
CLOSED IN THE INFORMATION DISCLOSED HEREIN.
EXTERNAL .22
PART NEXT ASSY USED ON .00 NEITHER THIS DOCUMENT NOR THE INFORMATION DIS-
C90-135A-IM
CLOSED HEREIN SHALL BE REPRODUCED, USED OR DIS-
LJ-502 AND SUBSEQUENT DASH
SM BEND RADII:
CLOSED IN WHOLE OR IN PART WITHOUT WRITTEN

APPLICATION
.03R & .06R ± .01
NO. .09R & GREATER ± .03
PERMISSION OF RAISBECK ENGINEERING. THE FOLLOW- SCALE: RLSE DATE: __ SHEET:
ING DOES NOT APPLY TO VENDOR DATA.
 MS35335-32
LOCKWASHER

MS21043-3 90-960028-3
NUT TARGET BRACKET MS35335-32
(4 PLACES) LOCKWASHER
NAS1149F0332P MS21043-3
WASHER 90-960028-3
NUT
AN3-5A TARGET BRACKET

BULKHEAD (REF) BOLT

NAS1149F0332P
WASHER
DE-ICE SLIP RING
AN3-5A
BOLT
2E1377 SCREW
BULKHEAD (REF)
INSTALL USING LOCTITE "C"
TORQUE TO 32-48
INCH-OUNCES
(4 PLACES)

TARGET-MULTIPLE BRACKET
REWORK AND INSTALLATION
LJ-905 THRU LJ-985,
LJ-987 THRU LJ-995,
90-960028-5 OR -29
LJ-997 THRU LJ-1010 EXISTING COUNTERWEIGHT TARGET-SINGLE BRACKET
TARGET-SCREW INSTALLATION REWORK AND INSTALLATION
LJ-502 THROUGH LJ-904 LJ-986, LJ-996,
LJ-1011 THRU LJ-1287,
LJ-1289 THRU LJ-1294,
LJ-1296 THRU LJ-1299

90°
80°
SEE FIGURE 6 FOR SYNCHROPHASER TARGET INSTALLATION ON
LJ-1288, LJ-1295, LJ-1300 AND SUBSEQUENT.
REWORKED EXISTING UNLESS OTHERWISE SPECIFIED DRAWN
DIMENSIONS ARE IN INCHES
RAISBECK ENGINEERING

DETAIL BRACKET REWORK DECIMALS

-TOLERANCES-
ANGULAR
CHECK SEATTLE, WASHINGTON

SYNCHROPHASER
ENGR
LJ-905 THRU LJ-1287, .X ± .1 ± 1°

TARGET
.XX ± .03
LJ-1289 THRU LJ-1294, .XXX ± .010
STRESS

LJ-1296 THRU LJ-1299 RIVET AND BOLT E.M.

SM CORNER RADII:
± .05

.19
APPVD
INSTALLATION
INTERNAL .16 PROPRIETARY NOTICE
.16 SIZE DWG NO. REV LTR
FIGURE 5
RAISBECK ENGINEERING PROPRIETARY RIGHTS ARE IN-
.25
D
CLOSED IN THE INFORMATION DISCLOSED HEREIN.
EXTERNAL .22
PART NEXT ASSY USED ON .00 NEITHER THIS DOCUMENT NOR THE INFORMATION DIS-
C90-135A-IM
SM BEND RADII: CLOSED HEREIN SHALL BE REPRODUCED, USED OR DIS-
DASH CLOSED IN WHOLE OR IN PART WITHOUT WRITTEN

APPLICATION
.03R & .06R ± .01
NO. .09R & GREATER ± .03
PERMISSION OF RAISBECK ENGINEERING. THE FOLLOW- SCALE: RLSE DATE: __ SHEET:
ING DOES NOT APPLY TO VENDOR DATA.
1 RAISBECK BRACKET ASSEMBLY P/N 15BC-72-200-1 IS A PRE-TRIMMED
REPLACEMENT FOR THE OEM BRACKET ASSEMBLY P/N 50-910584-33.
MS21043-3 NUT
(2 PLACES) NAS1149F0332P WASHER
(2 PLACES)

BULKHEAD (REF) 3360-078 MAGNETIC PICK-UP

NAS1149CN616R WASHER
MS21043-06 NUT

AN525-10R10 SCREW
(2 PLACES)

90-960028-29
TARGET BRACKET
LJ-1288, LJ-1295,
LJ-1300 THRU LJ-1332
90-960028-39
TARGET BRACKET
LJ-1333 THRU LJ-1541.
SEE DETAIL A
FOR LOCATION.

DO NOT INSTALL
BLADE WASHERS BETWEEN
CL
BRACKETS AND ENGINE
90-960028-29 OR 39 5°
TARGET BRACKET 20°
90-960028-29 OR -39
TARGET BRACKET

DRILL .218-.229 HOLE

TO MATCH BRACKET
& DEBURR R7.35
EXISTING HOLE SYNCHROPHASER
FOR RH PROP
PROP BALANCER PICK-UP SUPPORT
EXISTING HOLE PICK-UP SUPPORT
FOR LH PROP DRILL .218-.229 HOLE
TO MATCH BRACKET
& DEBURR
LH BULKHEAD
RH BULKHEAD
MS21043-3 NUT
(2 PLACES)

MAGNETIC TARGET-SINGLE BRACKET AN3-5A BOLT

(2 PLACES)
REWORK AND INSTALLATION HUB CL 50-910584-33 1
BRACKET ASSY

DETAIL A
LEFT & RIGHT PROPELLER
BULKHEAD GEOMETRY SHOWN
REWORK SLOTS AS SHOWN

92-2502-1
90-960028-23 BRACKET ASSY
EXISTING COUNTERWEIGHT .20 IN
MS35335-32 WASHER
90° (2 PLACES)
70°

MS21043-3 NAS1149F0363P WASHER

NUT (2 PLACES)
90-960028-23
TRIM BRACKET
NAS1149F0332P EXISTING COUNTERWEIGHT REWORKED EXISTING AS SHOWN
WASHER
DETAIL BRACKET REWORK .20 IN

AN525-10R10 LJ-1288, LJ-1295, LJ-1300 THRU LJ-1541

SCREW
BULKHEAD (REF) UNLESS OTHERWISE SPECIFIED DRAWN
DIMENSIONS ARE IN INCHES
JW JR 05-28-92 RAISBECK ENGINEERING
-TOLERANCES- CHECK SEATTLE, WASHINGTON
A. ERDAHL 06-10-92
DECIMALS ANGULAR

ENGINE RELATED CHANGES

ENGR
.X ± .1 ± 2° AL ERDAHL 06-10-92

AND SYNCHROPHASER
.XX ± .03 STRESS
.XXX ± .010
RIVET AND BOLT E.M.
SM CORNER RADII:
± .05

.19
APPVD
INSTALLATION
INTERNAL .16 PROPRIETARY NOTICE
SIZE DWG NO.
FIGURE 6 REV LTR
.16

D
.25 RAISBECK ENGINEERING PROPRIETARY RIGHTS ARE IN-
EXTERNAL .22 CLOSED IN THE INFORMATION DISCLOSED HEREIN.
PART NEXT ASSY USED ON .00 NEITHER THIS DOCUMENT NOR THE INFORMATION DIS-
DOC C90-135A-IM
SM BEND RADII: CLOSED HEREIN SHALL BE REPRODUCED, USED OR DIS-
DASH CLOSED IN WHOLE OR IN PART WIHTOUT WRITTEN

APPLICATION
.03R & .06R ± .01 PERMISSION OF RAISBECK ENGINEERING. THE FOLLOW-
NO. .09R & GREATER ± .03
ING DOES NOT APPLY TO VENDOR DATA. SCALE: NONE RLSE DATE: __ SHEET:
 B-632 SHIMS

C-498 CENTERING CONE

NOTES
1 REMOVED.

2 THREAD LEGS OF EXTERNAL BETA SYSTEM DECOMPRESSION TOOL

ONTO BETA RODS UNTIL SEATED AGAINST BETA NUTS.

RAISBECK/HARTZELL
QUIET TURBOFAN PROPELLER
HC-D4N-3C/D9290K

OR

RAISBECK/HARTZELL
SWEPT BLADE TURBOFAN PROPELLER
HC-D4N-3C/D9510SK

SPINNER DOME
D-5210P (D9290K)
D-5210-5 (D9510SK)

B-3339-1
DOUBLE HEXAGON BOLT
(8 PLACES)
A-2048-2
WASHER
PRP-909-8 (8 PLACES)
"O"-RING
PROP DOME
PROPELLER HUB

AN526C1032R8 SCREW
A-1020 FIBRE WASHER
(20 PLACES)

BETA NUTS
(4 PLACES)

UNLESS OTHERWISE SPECIFIED DRAWN

DIMENSIONS ARE IN INCHES
RAISBECK ENGINEERING
-TOLERANCES- CHECK SEATTLE, WASHINGTON
DECIMALS ANGULAR
ENGR

PROPELLER
.X ± .1 ± 1°
.XX ± .03 STRESS
RAISBECK TOOL .XXX ± .010
APPVD
INSTALLATION
T85-1500, 85-1500-0001T, 85-1500-0002T, 2
RIVET AND BOLT E.M. ± .05
SM CORNER RADII:
.19
OR EQUIVALENT EXTERNAL BETA SYSTEM DECOMPRESSION TOOL INTERNAL .16
.16
PROPRIETARY NOTICE
SIZE DWG NO. REV LTR
FIGURE 7
RAISBECK ENGINEERING PROPRIETARY RIGHTS ARE IN-
.25
D
CLOSED IN THE INFORMATION DISCLOSED HEREIN.
EXTERNAL .22
PART NEXT ASSY USED ON .00 NEITHER THIS DOCUMENT NOR THE INFORMATION DIS-
SM BEND RADII: CLOSED HEREIN SHALL BE REPRODUCED, USED OR DIS- C90-135A-IM
DASH CLOSED IN WHOLE OR IN PART WITHOUT WRITTEN

APPLICATION
.03R & .06R ± .01
NO. .09R & GREATER ± .03
PERMISSION OF RAISBECK ENGINEERING. THE FOLLOW- SCALE: RLSE DATE: __ SHEET:
ING DOES NOT APPLY TO VENDOR DATA.
 NAS603-8P SCREW
(4 PLACES)

AN960D10L WASHER
(4 PLACES)

3E1964-3 OR C45114
PROP DE-ICE TIMER
LOCATE APPROXIMATELY
AS SHOWN

MS20426AD3-( ) RIVET
MFG HEAD NEAR SIDE
(8 PLACES)

EXISTING HOLES

EXISTING PROP DE-ICE

FW TIMER MOUNTING BRACKET
D

EXISTING HOLES
NOTE
1 CUSTOMER SUPPLIED.
MS21059L3 NUTPLATE
(4 PLACES)
Ø.218-.229 HOLE
1 LOCATE FROM 3E1964-3 or C45114 UNLESS OTHERWISE SPECIFIED DRAWN
PROP DE-ICE TIMER DIMENSIONS ARE IN INCHES
RAISBECK ENGINEERING
(4 PLACES) -TOLERANCES- CHECK SEATTLE, WASHINGTON
DECIMALS ANGULAR
ENGR

ELECTRICAL SYSTEM
.X ± .1 ± 2°
.XX ± .03 STRESS

PROP DE-ICE TIMER INSTALLATION

.XXX ± .010
RIVET AND BOLT E.M. ± .05 APPVD
CHANGES
SM CORNER RADII:
.19
LJ-502 THROUGH LJ-953. INTERNAL .16
.16
PROPRIETARY NOTICE
SIZE DWG NO. REV LTR
RAISBECK ENGINEERING PROPRIETARY RIGHTS ARE IN-
FIGURE 8
.25
D
CLOSED IN THE INFORMATION DISCLOSED HEREIN.
EXTERNAL .22
PART NEXT ASSY USED ON .00 NEITHER THIS DOCUMENT NOR THE INFORMATION DIS-
C90-135A-IM
SM BEND RADII: CLOSED HEREIN SHALL BE REPRODUCED, USED OR DIS-
DASH CLOSED IN WHOLE OR IN PART WITHOUT WRITTEN

APPLICATION
.03R & .06R ± .01
NO. .09R & GREATER ± .03
PERMISSION OF RAISBECK ENGINEERING. THE FOLLOW- SCALE: RLSE DATE: __ SHEET:
ING DOES NOT APPLY TO VENDOR DATA.
 FWD

NOTICE
THIS AIRCRAFT IS RAISBECK
EQUIPPED. CONSULT APPLICABLE UNLESS OTHERWISE SPECIFIED DRAWN
DIMENSIONS ARE IN INCHES
RAISBECK ENGINEERING
RAISBECK ENGINEERING RIGGING CHECK SEATTLE, WASHINGTON
-TOLERANCES-
INTRUCTIONS WITH A/C PAPERS,
DECIMALS ANGULAR
OR CALL RAISBECK SERVICE AT ENGR

PLACARD
.X ± .1 ± 2°

(206) 763-2000 .XX ± .03 STRESS

OR
.XXX ± .010
RIVET AND BOLT E.M. ± .05 APPVD
INSTALLATION
1-800-537-7277 SM CORNER RADII:
.19
INTERNAL .16 PROPRIETARY NOTICE
REI-1001-1 PLACARD .16 SIZE DWG NO. REV LTR
RAISBECK ENGINEERING PROPRIETARY RIGHTS ARE IN-
FIGURE 9
P/N REI-1001-1 .25
D
CLOSED IN THE INFORMATION DISCLOSED HEREIN.
EXTERNAL .22
PART NEXT ASSY USED ON .00 NEITHER THIS DOCUMENT NOR THE INFORMATION DIS-
C90-135A-IM
SM BEND RADII: CLOSED HEREIN SHALL BE REPRODUCED, USED OR DIS-
DASH CLOSED IN WHOLE OR IN PART WITHOUT WRITTEN

APPLICATION
.03R & .06R ± .01
NO. .09R & GREATER ± .03
PERMISSION OF RAISBECK ENGINEERING. THE FOLLOW- SCALE: RLSE DATE: __ SHEET:
ING DOES NOT APPLY TO VENDOR DATA.
 2 H151A20
TO ELECTRIC
PROP DEICE H152A20 HEAT LOCKOUT
1 AMMETER

PROP DEICE
SWITCH / CIRCUIT BREAKER
+ -
H175A10 A H174A10 H176A10
25A
DEICE
H174B20 LOCKOUT
RELAY
E

EQUIPMENT LIST
G

H173A20N 4
N
A
H
C

ITEM
DESCRIPTION PART NUMBER MANUFACTURER
NUMBER

1 SWITCH/CIRCUIT BREAKER (NEW) 7270-1-25 OR 7270-5-25 KLIXON

3 2 AMMETER (NEW) 2 2
3 SHUNT 90-380008-1 BEECH
4 RELAY MS24187D1
E 5 TIMER (NEW) 3E1964-3 OR C45114 B.F. GOODRICH
NG
HA 6 BRUSH BLOCK ASSY (ALTERED) 1 B.F. GOODRICH
B C
F H179A10
CHANGE E H180A10
G H181A10N
1 4E1311-2 BRUSH BLOCK ASSEMBLY OR 3E2044-1 MODULAR
D H182A10 BRUSH BLOCK.
C H183A10

C
H 2 3E1219-4 B.F. GOODRICH
AN
G OR
E
PROP DEICE TIMER 50-380086-3 BEECH
5
C

R.H. ENGINE
E
H

G
A

N
N

FORWARD R.H. ENGINE

A
G

H
E

FIRESEAL FIREWALL
C

(TOP)
B A H190A16 H180C10 P H180B10 U
C B H189A16 H179C10 R H179B10 V
(BOTTOM) C H191A16 H181D10N

R.H. ENGINE
CH

BRUSH BLOCK
AN

ASSEMBLY
GE

AIRCRAFT WITH
4E1311-2
BRUSH BLOCK ASSEMBLY

L.H. ENGINE L.H. ENGINE

C
H

E FORWARD FIREWALL
A

G
N

AN
G

H FIRESEAL
E

(TOP)
B A H190A16 H180C10 P H180B10 U
C B H189A16 H179C10 R H179B10 V
(BOTTOM) C H191A16 H181D10N NOTE
INFORMATION CONTAINED ON THIS DRAWING REFLECTS INFORMATION APPLICABLE MODELS: C90
L.H. ENGINE E AS SUPPLIED BY BEECHCRAFT AIRCRAFT CORPORATION AS OF SERIAL NUMBERS: LJ-502 THRU LJ-574
C

G AUGUST 20, 1986 AND WILL NOT BE MAINTAINED. RAISBECK

AN
HA

BRUSH BLOCK H ENGINEERING REQUIRED CHANGES ARE SHOWN BY ARROWS.

C
NG

ASSEMBLY
E

6
(BOTTOM) H190A16 UNLESS OTHERWISE SPECIFIED DRAWN
RAISBECK ENGINEERING
DIMENSIONS ARE IN INCHES
B H189A16 -TOLERANCES- CHECK SEATTLE, WASHINGTON
C H191A16 H181D10N DECIMALS ANGULAR
(TOP) .X ± .1 ± 2°
ENGR
PROPELLER DE-ICING
SYSTEM
.XX ± .03 STRESS
AIRCRAFT WITH
MODULAR .XXX ± .010
3E2044-1
MODULAR BRUSH BLOCK
BRUSH BLOCK
RIVET AND BOLT E.M.
SM CORNER RADII:
± .05

.19
APPVD
WIRING DIAGRAM
6 INTERNAL .16 PROPRIETARY NOTICE
SIZE DWG NO.
.16 RAISBECK ENGINEERING PROPRIETARY RIGHTS ARE IN-
FIGURE 10 REV LTR
.25
D
CLOSED IN THE INFORMATION DISCLOSED HEREIN.
EXTERNAL .22
PART NEXT ASSY USED ON .00 NEITHER THIS DOCUMENT NOR THE INFORMATION DIS-
CLOSED HEREIN SHALL BE REPRODUCED, USED OR DIS-
C90-135A-IM
SM BEND RADII:
DASH CLOSED IN WHOLE OR IN PART WITHOUT WRITTEN

APPLICATION
.03R & .06R ± .01
NO. .09R & GREATER ± .03
PERMISSION OF RAISBECK ENGINEERING. THE FOLLOW- SCALE: RLSE DATE: __ SHEET:
ING DOES NOT APPLY TO VENDOR DATA.
 2 H151A20
TO ELECTRIC
PROP DEICE H152A20 HEAT LOCKOUT
1 AMMETER

PROP DEICE
SWITCH / CIRCUIT BREAKER
+ -
H175A10 A H174A10 H176A10
25A
DEICE
H174B20 LOCKOUT
RELAY
E

EQUIPMENT LIST
G

H173A20N 4
N
A
H
C

ITEM
DESCRIPTION PART NUMBER MANUFACTURER
NUMBER

1 SWITCH/CIRCUIT BREAKER (NEW) 7270-1-25 OR 7270-5-25 KLIXON

3 2 AMMETER (ALTERED) 2 2
3 SHUNT 90-380008-1 BEECH
4 RELAY MS24187D1
E 5 TIMER (NEW) 3E1964-3 OR C45114 B.F. GOODRICH
NG
HA 6 BRUSH BLOCK ASSY (ALTERED) 1 B.F. GOODRICH
C
B
F H179A10
CHANGE E H180A10
G H181A10
1 4E1311-2 BRUSH BLOCK ASSEMBLY OR 3E2044-1 MODULAR
D H182A10 BRUSH BLOCK.
C H183A10

C
H 2 50-380086-3 BEECH
AN
G OR
E
90-380007-9 BEECH
PROP DEICE TIMER
OR
5
101-389017-9 BEECH
C

R.H. ENGINE
E
H

G
A

N
N

FORWARD R.H. ENGINE

A
G

H
E

FIRESEAL FIREWALL
C

(TOP)
B A H180C10 P H180B10 U
C B H179C10 R H179B10 V
(BOTTOM) C H181D10N

R.H. ENGINE
CH

BRUSH BLOCK
AN

ASSEMBLY
GE

AIRCRAFT WITH
4E1311-2
BRUSH BLOCK ASSEMBLY
C

L.H. ENGINE L.H. ENGINE

H
A

E
N

G FORWARD FIREWALL
G

AN
E

H FIRESEAL
C

(TOP)
B A H180C10 P H180B10 U
C B H179C10 R H179B10 V
(BOTTOM) C H181D10N NOTE
INFORMATION CONTAINED ON THIS DRAWING REFLECTS INFORMATION APPLICABLE MODELS: C90
E AS SUPPLIED BY BEECHCRAFT AIRCRAFT CORPORATION AS OF
L.H. ENGINE G SERIAL NUMBERS: LJ-575 THRU LJ-707
C

AUGUST 20, 1986 AND WILL NOT BE MAINTAINED. RAISBECK

AN
H

BRUSH BLOCK H ENGINEERING REQUIRED CHANGES ARE SHOWN BY ARROWS.

AN

C
ASSEMBLY
G
E

6
(BOTTOM) H180C10 UNLESS OTHERWISE SPECIFIED DRAWN
RAISBECK ENGINEERING
DIMENSIONS ARE IN INCHES
B H179C10 -TOLERANCES- CHECK SEATTLE, WASHINGTON
C H181D10N DECIMALS ANGULAR

PROPELLER DE-ICING
ENGR
(TOP) .X ± .1 ± 2°

SYSTEM
.XX ± .03 STRESS
AIRCRAFT WITH
MODULAR .XXX ± .010
3E2044-1
MODULAR BRUSH BLOCK
BRUSH BLOCK
RIVET AND BOLT E.M.
SM CORNER RADII:
± .05

.19
APPVD
WIRING DIAGRAM
6 INTERNAL .16
.16
PROPRIETARY NOTICE
SIZE DWG NO. REV LTR
FIGURE 11
RAISBECK ENGINEERING PROPRIETARY RIGHTS ARE IN-
.25
D
CLOSED IN THE INFORMATION DISCLOSED HEREIN.
EXTERNAL .22
PART NEXT ASSY USED ON .00 NEITHER THIS DOCUMENT NOR THE INFORMATION DIS-
SM BEND RADII: CLOSED HEREIN SHALL BE REPRODUCED, USED OR DIS- C90-135A-IM
DASH CLOSED IN WHOLE OR IN PART WITHOUT WRITTEN

APPLICATION
.03R & .06R ± .01
NO. .09R & GREATER ± .03
PERMISSION OF RAISBECK ENGINEERING. THE FOLLOW- SCALE: RLSE DATE: __ SHEET:
ING DOES NOT APPLY TO VENDOR DATA.
 2 H151A20
TO ELECTRIC
PROP DEICE H152A20 HEAT LOCKOUT
1 AMMETER

PROP DEICE
SWITCH / CIRCUIT BREAKER
+ -
H175A10 A H174A10 H176A10
25A
DEICE
H174B20 LOCKOUT
RELAY
E

EQUIPMENT LIST
G

H173A20N 4
N
A
H
C

ITEM
DESCRIPTION PART NUMBER MANUFACTURER
NUMBER

1 SWITCH/CIRCUIT BREAKER (NEW) 7270-1-25 OR 7270-5-25 KLIXON

3 2 AMMETER (ALTERED) 90-380007-9 BEECH
3 SHUNT 90-380008-1 BEECH
4 RELAY MS24187D1
E 5 TIMER (NEW) 3E1964-3 OR C45114 B.F. GOODRICH
NG
HA 6 BRUSH BLOCK ASSY (ALTERED) 1 B.F. GOODRICH
B C
F H179D12
CHANGE E H180D12
G H181A10N
1 4E1311-2 BRUSH BLOCK ASSEMBLY OR 3E2044-1 MODULAR
D H182A10 BRUSH BLOCK.
C H183A10

C
H
AN
G
E
PROP DEICE TIMER
5
C

R.H. ENGINE
E
H

G
A

N
N

FORWARD R.H. ENGINE

A
G

H
E

FIRESEAL FIREWALL
C

(TOP)
B A H180C16 P H180B12 U H183B12
C B H179C16 R H179B12 V H182B12
(BOTTOM) C H181D16N

R.H. ENGINE
CH

BRUSH BLOCK
AN

ASSEMBLY
GE

AIRCRAFT WITH
4E1311-2
BRUSH BLOCK ASSEMBLY
C

L.H. ENGINE L.H. ENGINE

H
A

E
N

G FORWARD FIREWALL
G

AN
E

H FIRESEAL
C

(TOP)
B A H180C16 P H180B12 U
C B H179C16 R H179B12 V
(BOTTOM) C H181D16N
NOTE
INFORMATION CONTAINED ON THIS DRAWING REFLECTS INFORMATION APPLICABLE MODELS: C90
GE
C

L.H. ENGINE AS SUPPLIED BY BEECHCRAFT AIRCRAFT CORPORATION AS OF SERIAL NUMBERS: LJ-708 THRU LJ-767
HA

N
BRUSH BLOCK HA AUGUST 20, 1986 AND WILL NOT BE MAINTAINED. RAISBECK
NG

C ENGINEERING REQUIRED CHANGES ARE SHOWN BY ARROWS.

ASSEMBLY
E

6
(BOTTOM) H180C16 UNLESS OTHERWISE SPECIFIED DRAWN
RAISBECK ENGINEERING
DIMENSIONS ARE IN INCHES
B H179C16 -TOLERANCES- CHECK SEATTLE, WASHINGTON
C H181D16N DECIMALS ANGULAR
(TOP) .X ± .1 ± 2°
ENGR
PROPELLER DE-ICING
SYSTEM
.XX ± .03 STRESS
AIRCRAFT WITH
MODULAR .XXX ± .010
3E2044-1
MODULAR BRUSH BLOCK
BRUSH BLOCK
RIVET AND BOLT E.M.
SM CORNER RADII:
± .05 APPVD
WIRING DIAGRAM
.19
6 INTERNAL .16
.16
PROPRIETARY NOTICE
SIZE DWG NO. REV LTR
RAISBECK ENGINEERING PROPRIETARY RIGHTS ARE IN-
FIGURE 12
.25
D
CLOSED IN THE INFORMATION DISCLOSED HEREIN.
EXTERNAL .22
PART NEXT ASSY USED ON .00 NEITHER THIS DOCUMENT NOR THE INFORMATION DIS-
C90-135A-IM
SM BEND RADII: CLOSED HEREIN SHALL BE REPRODUCED, USED OR DIS-
DASH CLOSED IN WHOLE OR IN PART WITHOUT WRITTEN

APPLICATION
.03R & .06R ± .01
NO. .09R & GREATER ± .03
PERMISSION OF RAISBECK ENGINEERING. THE FOLLOW- SCALE: RLSE DATE: __ SHEET:
ING DOES NOT APPLY TO VENDOR DATA.
 2 H151A20
TO ELECTRIC
PROP DEICE H152A20 HEAT LOCKOUT
1 AMMETER

PROP DEICE
SWITCH / CIRCUIT BREAKER
+ -
H175A10 A H174A10 H176A10
25A
DEICE
H174B20 LOCKOUT
RELAY
E

EQUIPMENT LIST
G

H173A20N 4
N
A
H
C

ITEM
DESCRIPTION PART NUMBER MANUFACTURER
NUMBER

1 SWITCH/CIRCUIT BREAKER (NEW) 7270-1-25 OR 7270-5-25 KLIXON

3 2 AMMETER (ALTERED) 90-380007-9 BEECH
3 SHUNT 90-380008-1 BEECH
4 RELAY MS24187D1
E 5 TIMER (NEW) 3E1964-3 OR C45114 B.F. GOODRICH
NG
HA 6 MODULAR BRUSH BLOCK ASSY 3E2044-1 B.F. GOODRICH
B C (ALTERED)
F H179D12
CHANGE E H180D12
G H181A10N
D H182A10
C H183A10

C
H
AN
G
E
PROP DEICE TIMER
5
C

R.H. ENGINE
E
H

G
A

N
N

FORWARD R.H. ENGINE

A
G

H
E

FIRESEAL FIREWALL
C

(BOTTOM) H180C16 P H180B12 U H183B12

B H179C16 R H179B12 V H182B12
C H181D16N
(TOP)

R.H. ENGINE
MODULAR BRUSH
BLOCK ASSEMBLY
6

L.H. ENGINE L.H. ENGINE

C
H

E FORWARD FIREWALL
A

G
N

AN
G

H FIRESEAL
E

(BOTTOM) H180C16 P H180B12 U

B H179C16 R H179B12 V
C H181D16N
(TOP) NOTE
INFORMATION CONTAINED ON THIS DRAWING REFLECTS INFORMATION APPLICABLE MODELS: C90
AS SUPPLIED BY BEECHCRAFT AIRCRAFT CORPORATION AS OF SERIAL NUMBERS: LJ-768 THRU LJ-953
L.H. ENGINE AUGUST 20, 1986 AND WILL NOT BE MAINTAINED. RAISBECK
ENGINEERING REQUIRED CHANGES ARE SHOWN BY ARROWS.
MODULAR BRUSH
BLOCK ASSEMBLY
6 UNLESS OTHERWISE SPECIFIED DRAWN
RAISBECK ENGINEERING
DIMENSIONS ARE IN INCHES
-TOLERANCES- CHECK SEATTLE, WASHINGTON
DECIMALS ANGULAR

PROPELLER DE-ICING
ENGR
.X ± .1 ± 2°

SYSTEM
.XX ± .03 STRESS
.XXX ± .010
RIVET AND BOLT E.M.
SM CORNER RADII:
± .05

.19
APPVD
WIRING DIAGRAM
INTERNAL .16 PROPRIETARY NOTICE
.16 SIZE DWG NO. REV LTR
FIGURE 13
RAISBECK ENGINEERING PROPRIETARY RIGHTS ARE IN-
.25
D
CLOSED IN THE INFORMATION DISCLOSED HEREIN.
EXTERNAL .22
PART NEXT ASSY USED ON .00 NEITHER THIS DOCUMENT NOR THE INFORMATION DIS-
C90-135A-IM
SM BEND RADII: CLOSED HEREIN SHALL BE REPRODUCED, USED OR DIS-
DASH CLOSED IN WHOLE OR IN PART WITHOUT WRITTEN

APPLICATION
.03R & .06R ± .01
NO. .09R & GREATER ± .03
PERMISSION OF RAISBECK ENGINEERING. THE FOLLOW- SCALE: RLSE DATE: __ SHEET:
ING DOES NOT APPLY TO VENDOR DATA.
 2 H151A20
TO ELECTRIC
PROP DEICE H152A20 HEAT LOCKOUT
1 AMMETER
NOTE:
PROP DEICE
SWITCH / CIRCUIT BREAKER C90SE NO REWORK REQUIRED.
+ -
H175A10 A H174A10 H176A10
25A
DEICE
H174B20 LOCKOUT
RELAY
E

EQUIPMENT LIST
G

H173A20N 4
N
A
H
C

ITEM
DESCRIPTION PART NUMBER MANUFACTURER
NUMBER

1 SWITCH/CIRCUIT BREAKER (NEW) 7270-1-25 OR 7270-5-25 KLIXON

3 2 AMMETER (ALTERED) 1 1
3 SHUNT 90-380008-1 BEECH
4 RELAY MS24187D1
5 TIMER 3E1964-3 OR C45114 B.F. GOODRICH
6 MODULAR BRUSH BLOCK ASSY 3E2090-1 B.F. GOODRICH
B
F H179A10
E
G H181A10N
1 90-380007-9 BEECH
D H182A10
OR
C
101-389017-9 BEECH

PROP DEICE TIMER

5

R.H. ENGINE
FORWARD R.H. ENGINE
FIRESEAL FIREWALL

(TOP)
B H179C12 R H179B12 V H1182B12
C H181D12N
(BOTTOM)

R.H. ENGINE VERIFY THIS WIRE IS AWG12

MODULAR BRUSH OR LARGER GAUGE. IF IT IS
BLOCK ASSEMBLY AWG 14 OR SMALLER GAUGE,
6 REMOVE AND REPLACE WITH
AN AWG 12 WIRE MARKED AS
SHOWN.

L.H. ENGINE L.H. ENGINE

FORWARD FIREWALL
FIRESEAL

(TOP)
B H179C12 R H179B12 V H179D12

(BOTTOM)
C H181D12N
NOTE
INFORMATION CONTAINED ON THIS DRAWING REFLECTS INFORMATION APPLICABLE MODELS: C90
AS SUPPLIED BY BEECHCRAFT AIRCRAFT CORPORATION AS OF SERIAL NUMBERS: LJ-954THRU LJ-1062
AUGUST 20, 1986 AND WILL NOT BE MAINTAINED. RAISBECK
L.H. ENGINE ENGINEERING REQUIRED CHANGES ARE SHOWN BY ARROWS.
MODULR BRUSH
BLOCK ASSEMBLY
6 UNLESS OTHERWISE SPECIFIED DRAWN
RAISBECK ENGINEERING
DIMENSIONS ARE IN INCHES
-TOLERANCES- CHECK SEATTLE, WASHINGTON
DECIMALS ANGULAR

.X ± .1 ± 2°
ENGR
PROPELLER DE-ICING
SYSTEM
.XX ± .03 STRESS
.XXX ± .010
RIVET AND BOLT E.M.
SM CORNER RADII:
± .05 APPVD
WIRING DIAGRAM
.19
INTERNAL .16 PROPRIETARY NOTICE
.16 SIZE DWG NO. REV LTR
FIGURE 14
RAISBECK ENGINEERING PROPRIETARY RIGHTS ARE IN-
.25
D
CLOSED IN THE INFORMATION DISCLOSED HEREIN.
EXTERNAL .22
PART NEXT ASSY USED ON .00 NEITHER THIS DOCUMENT NOR THE INFORMATION DIS-
C90-135A-IM
SM BEND RADII: CLOSED HEREIN SHALL BE REPRODUCED, USED OR DIS-
DASH CLOSED IN WHOLE OR IN PART WITHOUT WRITTEN

APPLICATION
.03R & .06R ± .01
NO. .09R & GREATER ± .03
PERMISSION OF RAISBECK ENGINEERING. THE FOLLOW- SCALE: RLSE DATE: __ SHEET:
ING DOES NOT APPLY TO VENDOR DATA.
 J285 P285

H155B22 2 H155A22
TO ELECTRIC
1 H256A22 HEAT LOCKOUT

C3
P265B14 ON LJ-1063 THRU LJ-1265 H256B22
P265B12 ON LJ-1266 AND AFTER C2 C1
R111
PROP DEICE SHUNT

B3

F170 B2 B1
P265A10 H163A10 H165A10

PROP
DEICE

CB167 P285 J285

H60A22 4 H60B22 K132 H143A14 + A - H145A14

5A PROP DEICE
PROP 5 H166A22 POWER AND
DEICE ELECTICAL
J308 P308 HEAT LOCKOUT A151M4
RELAY AMMETER
30A ON LJ-1063 THRU LJ-1265 A H166B22N EQUIPMENT LIST
35A ON LJ-1266 AND AFTER

ITEM
DESCRIPTION PART NUMBER MANUFACTURER APPLICABLE AIRCRAFT
NUMBER

F170 LIMITER ACH-30 LJ-1063 THRU LJ-1265

F170 LIMITER ACH-35 LJ-1266 AND AFTER

R.H. ENGINE
FORWARD R.H. ENGINE K132 RELAY KC-J2A LEACH LJ-1063 AND AFTER
FIRESEAL FIREWALL
A151M4 AMMETER (ALTERED) 101-389022-1 BEECH LJ-1063 THRU LJ-1287, LJ-1289 THRU
LJ-1294, LJ-1296 THRU LJ-1299
B H49D12 P H49C12 V H56B10
C H52A12N R H15B12N A151M4 AMMETER 101-389022-9 BEECH LJ-1288, LJ-1295, LJ-1300 AND AFTER

P5 J5 P1 J103 R111 SHUNT MS 91586-1 LJ-1063 AND AFTER

SRI M125 TIMER 3E1964-3 B.F. GOODRICH LJ-1063 THRU LJ-1287, LJ-1289 THRU
MODULAR BRUSH C45114
LJ-1294, LJ-1296 THRU LJ-1299
BLOCK ASSEMBLY
M125 TIMER B-45018 MCCAULY LJ-1288, LJ-1295, LJ-1300 AND AFTER.

SRI MODULAR BRUSH 3E2090-1 B.F. GOODRICH LJ-1063 THRU LJ-1287, LJ-1289 THRU
BLOCK ASSEMBLY LJ-1294, LJ-1296 THRU LJ-1299.
D
B SRI MODULAR BRUSH B.F. GOODRICH LJ-1288, LJ-1295, LJ-1300 AND AFTER.
C BLOCK ASSEMBLY RA-2190-1
G H67A12N
E
F

P267

M125
PROP DEICE TIMER

P5 J5 P1 J102

B H49D12 P H49C12 V H49B10

C H52A12N R H52B12N
NOTE
L.H. ENGINE L.H. ENGINE
APPLICABLE MODELS: C90A
FORWARD FIREWALL INFORMATION CONTAINED ON THIS DRAWING REFLECTS INFORMATION
AS SUPPLIED BY BEECHCRAFT AIRCRAFT CORPORATION AS OF SERIAL NUMBERS: LJ-1063 AND AFTER.
SRI FIRESEAL
AUGUST 20, 1986 AND WILL NOT BE MAINTAINED.
MODULAR BRUSH
BLOCK ASSEMBLY
UNLESS OTHERWISE SPECIFIED DRAWN
DIMENSIONS ARE IN INCHES
RAISBECK ENGINEERING
-TOLERANCES- CHECK SEATTLE, WASHINGTON
DECIMALS ANGULAR

.X ± .1 ± 2°
ENGR
PROPELLER DE-ICING
SYSTEM
.XX ± .03 STRESS
.XXX ± .010
RIVET AND BOLT E.M.
SM CORNER RADII:
± .05 APPVD
WIRING DIAGRAM
.19
INTERNAL .16 PROPRIETARY NOTICE
.16 SIZE DWG NO. REV LTR
FIGURE 15
RAISBECK ENGINEERING PROPRIETARY RIGHTS ARE IN-
.25
D
CLOSED IN THE INFORMATION DISCLOSED HEREIN.
EXTERNAL .22
PART NEXT ASSY USED ON .00 NEITHER THIS DOCUMENT NOR THE INFORMATION DIS-
C90-135A-IM
SM BEND RADII: CLOSED HEREIN SHALL BE REPRODUCED, USED OR DIS-
DASH CLOSED IN WHOLE OR IN PART WITHOUT WRITTEN

APPLICATION
.03R & .06R ± .01
NO. .09R & GREATER ± .03
PERMISSION OF RAISBECK ENGINEERING. THE FOLLOW- SCALE: RLSE DATE: __ SHEET:
ING DOES NOT APPLY TO VENDOR DATA.