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TEXTRON AVIATION INC.

AIRCRAFT DIVISION

WICHITA, KANSAS 67277

INTRODUCTION

1.

Purpose

A.

The purpose of this Supplement is to provide the maintenance technician with the information

necessary to ensure the correct functionality and performance of the AUTOPILOT CLAMP BLOCK

IMPROVEMENT on the Cessna Model 525 (M2) until this information gets incorporated into the next

revision to the manuals listed in the "REVISIONS" section of this supplement.

B.

This ICA supplement is designed to satisfy the requirements of 14 CFR 23.1529 "Instructions for

Continued Airworthiness" associated with this installation. This document is a supplement to the

Model 525 (0685 and -0800 and On) Maintenance Manual and will be incorporated in the next revision

to the manual.

C.

When this information is incorporated in the next revision to the manuals listed in the "REVISIONS"

section, those manuals shall take precedence over this supplemental document. Refer to the "ICA

Supplement List" in the "Introduction" section of the respective manual for the status of all applicable

ICA Supplements.

D.

Revisions to this supplement may occur if there is a change to any of the ICAs in this supplement

prior to incorporation into all of the affected manuals.

NOTE:

This document must be placed with the aircraft operator's Technical Library CD-ROM

or Model 525 (0685 and -0800 and On) Maintenance Manual and incorporated into the

operator's scheduled maintenance program.

2.

Effectivity

A.

These Instructions for Continued Airworthiness (ICA) are effective for the following aircraft model and

serialization.

Model

Beginning Effectivity

Ending Effectivity

525 (M2)

-0972

and On

3.

Complete ICA Documents

A.

The following document(s), in conjunction with this supplement, constitute the Instructions for

Continued Airworthiness for the AUTOPILOT CLAMP BLOCK IMPROVEMENT on the Cessna

Model 525 (M2). All items must be available to the operator at initial delivery.

(1) Model 525 (0685 and 0800 and On) Maintenance Manual

4.

System Components

A.

Refer to Appendix A: Illustrated Parts Catalog

Page 4 of 6

Nov 22/2017

© TEXTRON AVIATION INC.

ICA-525-27-00005

Form 2261 Rev 1

Summary of Contents for Cessna 525

Page 1: ...ice Logan APPROVE 11 22 2017 15 08 15 MAINTENANCE_ENG ALL Stephen Taylor APPROVE 11 22 2017 13 53 46 ICA_COORDINATOR ALL Jason Peterson APPROVE 11 22 2017 15 10 04 PROJECT 525 SERIES Neil Hague APPROV...

Page 2: ...AVIATION INC AIRCRAFT DIVISION WICHITA KANSAS 67277 AUTOPILOT CLAMP BLOCK IMPROVEMENT ICA Supplement MODEL NO 525 SUPPLEMENT NO ICA 525 27 00005 SUPPLEMENT DATE 11 22 2017 TEXTRON AVIATION INC Form 22...

Page 3: ...f clamp blocks introduced in Airplanes 0871 thru 0971 Clamp blocks installed on Airplanes 0871 thru 0971 was 25 inch pounds to 40 inch pounds and is NOW 30 inch pounds to 40 inch pounds to match new d...

Page 4: ...uence are used to identify the type of information 1 Description and Operation or Troubleshooting information may not be included if the procedure is easy When subtopics are short they may be put toge...

Page 5: ...the REVISIONS table will indicate the incorporation status as of the release date of the published revision B The manual revision level of the supplement incorporation will be listed in the Manual In...

Page 6: ...List in the Introduction section of the respective manual for the status of all applicable ICA Supplements D Revisions to this supplement may occur if there is a change to any of the ICAs in this supp...

Page 7: ...10 25 Garmin Rudder Autopilot Servo Assembly Removal Installation 2 ATA 22 10 35 Garmin Elevator Autopilot Servo Assembly Removal Installation B Chapter 27 Flight Contols 1 ATA 27 30 05 Elevator and T...

Page 8: ...ual Chapter 4 Airworthiness Limitations contains the system and airframe limitations for the Model 525 M2 NOTE The Airworthiness Limitations section is FAA approved and speciies maintenance required u...

Page 9: ...vo gear box 7 Remove the rudder autopilot servo actuator from the rudder autopilot servo gear box and the airplane 8 If necessary use a clean lint free cloth and remove unwanted grease buildup from th...

Page 10: ...cts the rudder upper autopilot cable to the aft rudder autopilot cable Refer to Chapter 20 Safetying Maintenance Practices b Loosen the turnbuckle to release the cable tension c Remove the rudder uppe...

Page 11: ...the center of the rudder autopilot servo gear box c Tighten the clamp block nuts from 12 00 to 15 00 inch pounds 1 35 N m to 1 69 N m Refer to Chapter 20 Torque Data Maintenance Practices d Install t...

Page 12: ...tment panel 321AL Refer to Chapter 6 Access Plates and Panels Identiication Description and Operation 12 Close the tailcone baggage compartment door Refer to Chapter 6 Dimensions and Areas Description...

Page 13: ...SNA MODEL 525 SERIALS 0685 AND 0800 AND ON MAINTENANCE MANUAL Garmin Rudder Autopilot Servo Assembly Figure 401 Sheet 1 22 10 25 Page 405 TEXTRON AVIATION INC Nov 22 2017 ICA 525 27 00005 Form 2261 Re...

Page 14: ...SNA MODEL 525 SERIALS 0685 AND 0800 AND ON MAINTENANCE MANUAL Garmin Rudder Autopilot Servo Assembly Figure 401 Sheet 2 22 10 25 Page 406 TEXTRON AVIATION INC Nov 22 2017 ICA 525 27 00005 Form 2261 Re...

Page 15: ...SNA MODEL 525 SERIALS 0685 AND 0800 AND ON MAINTENANCE MANUAL Garmin Rudder Autopilot Servo Assembly Figure 401 Sheet 3 22 10 25 Page 407 TEXTRON AVIATION INC Nov 22 2017 ICA 525 27 00005 Form 2261 Re...

Page 16: ...A MODEL 525 SERIALS 0685 AND 0800 AND ON MAINTENANCE MANUAL Swaged Ball from 3 32 Spiral Wrap Capstan Figure 402 Sheet 1 22 10 25 Page 408 TEXTRON AVIATION INC Nov 22 2017 ICA 525 27 00005 Form 2261 R...

Page 17: ...x 7 Remove the elevator autopilot servo actuator from the elevator autopilot servo gear box and the airplane 8 If necessary use a clean lint free cloth and remove unwanted grease buildup from the elev...

Page 18: ...in this section 6 For Airplanes 0685 and 0800 and On do the steps that follow a Remove the clips from the turnbuckle that connects the elevator upper autopilot cable to the upper elevator aft autopil...

Page 19: ...ck nuts from 12 00 and 15 00 inch pounds 1 35 N m to 1 69 N m b Airplanes 0871 and On tighten the clamp block nuts from 30 40 inch pounds 3 39 N m to 4 51 N m c Install the elevator upper autopilot ca...

Page 20: ...NA MODEL 525 SERIALS 0685 AND 0800 AND ON MAINTENANCE MANUAL Garmin Elevator Autopilot Servo Assembly Figure 401 Sheet 1 22 10 35 Page 404 TEXTRON AVIATION INC Nov 22 2017 ICA 525 27 00005 Form 2261 R...

Page 21: ...A MODEL 525 SERIALS 0685 AND 0800 AND ON MAINTENANCE MANUAL Swaged Ball from 3 32 Spiral Wrap Capstan Figure 402 Sheet 1 22 10 35 Page 405 TEXTRON AVIATION INC Nov 22 2017 ICA 525 27 00005 Form 2261 R...

Page 22: ...e Refer to Chapter 22 Garmin Elevator Autopilot Servo Assembly Removal Installation 8 Remove the clips and disconnect the forward control cable turnbuckles at FS 339 55 and FS 355 74 from the aft cont...

Page 23: ...SSNA MODEL 525 SERIALS 0685 AND 0800 AND ON MAINTENANCE MANUAL Elevator Control Cables Installation Figure 201 Sheet 1 27 30 05 Page 202 TEXTRON AVIATION INC Nov 22 2017 ICA 525 27 00005 Form 2261 Rev...

Page 24: ...SSNA MODEL 525 SERIALS 0685 AND 0800 AND ON MAINTENANCE MANUAL Elevator Control Cables Installation Figure 201 Sheet 2 27 30 05 Page 203 TEXTRON AVIATION INC Nov 22 2017 ICA 525 27 00005 Form 2261 Rev...

Page 25: ...SSNA MODEL 525 SERIALS 0685 AND 0800 AND ON MAINTENANCE MANUAL Elevator Control Cables Installation Figure 201 Sheet 3 27 30 05 Page 204 TEXTRON AVIATION INC Nov 22 2017 ICA 525 27 00005 Form 2261 Rev...

Page 26: ...Plates and Panels Identiication Description and Operation 18 Install the pilot and copilot seats Refer to Chapter 25 Crew Seats Maintenance Practices 4 Elevator Aft Control Cables Removal Installatio...

Page 27: ...s are not installed in the correct position a Put the elevator auto pilot servo cables and the clamp blocks in their recorded position on the elevator trim cables b Install clamp block screws and nuts...

Page 28: ...to the horizontal stabilizer to hold the elevator in a ixed position 4 Open the tailcone baggage compartment door Refer to Chapter 6 Dimensions and Areas Description and Operation 5 Remove panels 321A...

Page 29: ...MODEL 525 SERIALS 0685 AND 0800 AND ON MAINTENANCE MANUAL Elevator Forward Aft Trim Cables Installation Figure 202 Sheet 1 27 30 05 Page 208 TEXTRON AVIATION INC Nov 22 2017 ICA 525 27 00005 Form 2261...

Page 30: ...MODEL 525 SERIALS 0685 AND 0800 AND ON MAINTENANCE MANUAL Elevator Forward Aft Trim Cables Installation Figure 202 Sheet 2 27 30 05 Page 209 TEXTRON AVIATION INC Nov 22 2017 ICA 525 27 00005 Form 2261...

Page 31: ...MODEL 525 SERIALS 0685 AND 0800 AND ON MAINTENANCE MANUAL Elevator Forward Aft Trim Cables Installation Figure 202 Sheet 3 27 30 05 Page 210 TEXTRON AVIATION INC Nov 22 2017 ICA 525 27 00005 Form 2261...

Page 32: ...MODEL 525 SERIALS 0685 AND 0800 AND ON MAINTENANCE MANUAL Elevator Forward Aft Trim Cables Installation Figure 202 Sheet 4 27 30 05 Page 211 TEXTRON AVIATION INC Nov 22 2017 ICA 525 27 00005 Form 2261...

Page 33: ...ce 13 Install the fairleads at FS 208 67 and FS 249 16 using screws washers and nuts 14 Route the forward trim cables upward along the aft pressure bulkhead to the upper trim cable pulley bracket asse...

Page 34: ...79 50 and VFS 118 80 a Remove the fairleads and the retainers from the airplane 12 Mark the location of the clamp blocks 13 Remove the clamp blocks attaching the elevator electric trim cables to the a...

Page 35: ...r Trim Cables Rigging 11 Remove one of the bolts and the washers that attach the fairleads and the retainers to the vertical stabilizer ribs at VFS 79 50 and VFS 118 80 CAUTION Be careful to not move...

Page 36: ...e chain at the control pedestal in the cockpit Refer to Aileron and Tab System Control Cables Maintenance Practices Fuselage Aileron Trim Cable Removal Installation 7 Remove safety clips and loosen el...

Page 37: ...SSNA MODEL 525 SERIALS 0685 AND 0800 AND ON MAINTENANCE MANUAL Forward Elevator Sector Installation Figure 401 Sheet 1 27 30 10 Page 402 TEXTRON AVIATION INC Nov 22 2017 ICA 525 27 00005 Form 2261 Rev...

Page 38: ...m Control Cables Maintenance Practices Fuselage Aileron Trim Cable Removal Installation 13 Connect the rudder forward trim control cables to the chain at the control pedestal in the cockpit Refer to R...

Page 39: ...e channel and between the nuts and the channel 4 Position the elevator stops between the elevator sector channels upper and between the attach brackets lower a Loosely install the bolts washers and nu...

Page 40: ...etween the bolt head and the outboard side of the left pushrod bearing 2 Make sure that the trailing edges of the elevators are lush with the trailing edge of the horizontal stabilizer 3 If the traili...

Page 41: ...DEL 525 SERIALS 0685 AND 0800 AND ON MAINTENANCE MANUAL Elevator Aft Sector Pushrod and Horn Installation Figure 402 Sheet 1 27 30 10 Page 406 TEXTRON AVIATION INC Nov 22 2017 ICA 525 27 00005 Form 22...

Page 42: ...t and copilot seats Refer to Chapter 25 Crew Seats Maintenance Practices 3 Remove screws securing control column boots to loor panels 4 Gain access to the control column by removing panels 241BT 241CT...

Page 43: ...CESSNA MODEL 525 SERIALS 0685 AND 0800 AND ON MAINTENANCE MANUAL Control Column Installation Figure 403 Sheet 1 27 30 10 Page 408 TEXTRON AVIATION INC Nov 22 2017 ICA 525 27 00005 Form 2261 Rev 1...

Page 44: ...ileron pulley bracket in its position between the left and the right support plate assemblies at the seat rail support structure a Install the screws 8 Install a rigging pin in the forward elevator se...

Page 45: ...the actuator b Put a 10 bolt through the trim actuator rod end bearings to keep them in the correct alignment 8 Remove the elevator to get access to the elevator trim actuator Refer to Chapter 55 Elev...

Page 46: ...NA MODEL 525 SERIALS 0685 AND 0800 AND ON MAINTENANCE MANUAL Elevator Trim Tab Actuator Installation Figure 404 Sheet 1 27 30 10 Page 411 TEXTRON AVIATION INC Nov 22 2017 ICA 525 27 00005 Form 2261 Re...

Page 47: ...position in the airplane a Install the bolts washers nuts and cotter pins that connect the pushrod assembly to the elevator trim tab horn and the elevator trim tab actuator rod end Refer to Chapter 2...

Page 48: ...ESSNA MODEL 525 SERIALS 0685 AND 0800 AND ON MAINTENANCE MANUAL Elevator Trim Control Installation Figure 405 Sheet 1 27 30 10 Page 413 TEXTRON AVIATION INC Nov 22 2017 ICA 525 27 00005 Form 2261 Rev...

Page 49: ...Connect the spring to the trim pointer 4 Put the top pedestal bezel aft assembly in its position on the pedestal 5 Install the screws 6 Install the trim control wheel to the pedestal Refer to Elevato...

Page 50: ...CESSNA MODEL 525 SERIALS 0685 AND 0800 AND ON MAINTENANCE MANUAL Elevator Trim Servo Installation Figure 406 Sheet 1 27 30 10 Page 415 TEXTRON AVIATION INC Nov 22 2017 ICA 525 27 00005 Form 2261 Rev 1...

Page 51: ...CESSNA MODEL 525 SERIALS 0685 AND 0800 AND ON MAINTENANCE MANUAL Elevator Trim Servo Installation Figure 406 Sheet 2 27 30 10 Page 416 TEXTRON AVIATION INC Nov 22 2017 ICA 525 27 00005 Form 2261 Rev 1...

Page 52: ...tion Supplier Publication List A Remove the Garmin GSM 86 Elevator Trim Servo Gearbox and Cable Refer to Figure 406 NOTE The electric trim servo stays attached to the electric trim servo gearbox durin...

Page 53: ...he clamp blocks and the nuts must be installed in the correct position to make sure that they do not catch on the adjacent cables or structure Damage to the cables or the structure can occur if the ca...

Page 54: ...electrical wires to disconnect them from the pitch trim switch SC313 pilot s SF313 copilot s Refer to the Model 525 Wiring Diagram Manual 0685 and 0800 and On 6 Remove the setscrew that holds the pit...

Page 55: ...CESSNA MODEL 525 SERIALS 0685 AND 0800 AND ON MAINTENANCE MANUAL Pitch Trim Switch Installation Figure 407 Sheet 1 27 30 10 Page 420 TEXTRON AVIATION INC Nov 22 2017 ICA 525 27 00005 Form 2261 Rev 1...

Page 56: ...5 APPENDIX A ILLUSTRATED PARTS CATALOG Nomenclature Part Number Quantity Screw MS24667 20 3 per clamp block Clamp Block Half Inner 6361011 37 1 Clamp Block Half Outer 6361011 38 1 Clamp Block Half Inn...

Page 57: ...TEXTRON AVIATION INC AIRCRAFT DIVISION WICHITA KANSAS 67277 SUPPLEMENT NO ICA 525 27 00005 APPENDIX B WIRING DIAGRAM MANUAL NOT APPLICABLE TEXTRON AVIATION INC Form 2261 Rev 1...

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