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Textron Aviation Cessna 525B Maintenance Manual

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TEXTRON AVIATION INC.
AIRCRAFT DIVISION
WICHITA, KANSAS 67277
ELEVATOR TRIM SERVO CAPSTAN CABLE RETENTION
IMPROVEMENT
ICA Supplement
MODEL NO: 525B
SUPPLEMENT NO: ICA-525B-27-00009
SUPPLEMENT DATE: 7/13/2020
© TEXTRON AVIATION INC.
Form 2261 Rev 1

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Summary of Contents for Textron Aviation Cessna 525B

  • Page 1 TEXTRON AVIATION INC. AIRCRAFT DIVISION WICHITA, KANSAS 67277 ELEVATOR TRIM SERVO CAPSTAN CABLE RETENTION IMPROVEMENT ICA Supplement MODEL NO: 525B SUPPLEMENT NO: ICA-525B-27-00009 SUPPLEMENT DATE: 7/13/2020 © TEXTRON AVIATION INC. Form 2261 Rev 1...
  • Page 2 When the chapter/system element number is followed with zeros in the section/subsystem and subject/unit element number (28-00-00), the information is applicable to the entire system. Page 1 of 6 Jul 13/2020 © TEXTRON AVIATION INC. ICA-525B-27-00009 Form 2261 Rev 1...
  • Page 3 The ICA Supplement List located in the Introduction section of each manual listed in the REVISIONS table will indicate the incorporation status as of the release date of the published revision. Page 2 of 6 Jul 13/2020 © TEXTRON AVIATION INC. ICA-525B-27-00009 Form 2261 Rev 1...
  • Page 4 This supplement will be completely superseded by the manuals listed in the REVISIONS table when it has been incorporated in all of the manuals. Page 3 of 6 Jul 13/2020 © TEXTRON AVIATION INC. ICA-525B-27-00009 Form 2261 Rev 1...
  • Page 5 IMPROVEMENT on the Cessna Model 525B. All items must be available to the operator at initial delivery. Model 525B Maintenance Manual System Components Refer to Appendix A: Illustrated Parts Catalog Page 4 of 6 Jul 13/2020 © TEXTRON AVIATION INC. ICA-525B-27-00009 Form 2261 Rev 1...

  • Page 6: Chapter 27 Flight Controls

    WICHITA, KANSAS 67277 LIST OF INSTRUCTIONS FOR CONTINUED AIRWORTHINESS Model 525B Maintenance Manual Chapter 27 Flight Controls ATA 27-30-02 Elevator and Tab System Components- Removal/Installation Page 5 of 6 Jul 13/2020 © TEXTRON AVIATION INC. ICA-525B-27-00009 Form 2261 Rev 1...
  • Page 7 Section 43.16 and 91.403 of Title 14 Code of Federal Regulations, unless an alternative program has been FAA approved. There are no new (or additional) airworthiness limitations associated with this equipment and/or installation. Page 6 of 6 Jul 13/2020 © TEXTRON AVIATION INC. ICA-525B-27-00009 Form 2261 Rev 1...
  • Page 9 System Control Cables - Maintenance Practices. (11) Install the tailcone baggage compartment panel 321BL. Refer to Chapter 6, Access Plates and Panels Identification - Description and Operation. 27-30-02 Page 401 Jul 13/2020 © TEXTRON AVIATION INC. ICA-525B-27-00009 Form 2261 Rev 1...
  • Page 10 COTTER PIN LOWER SECTOR BRACKET SCREW DETAIL AIRPLANES −0001 THRU −0056 AND AIRPLANES −0058 THRU −0450 6310T1072 A6363T1017 Forward Elevator Sector Installation Figure 401 (Sheet 1) 27-30-02 Page 402 Jul 13/2020 © TEXTRON AVIATION INC. ICA-525B-27-00009 Form 2261 Rev 1...
  • Page 11 ROD END FORWARD ELEVATOR SECTOR WASHER COTTER PIN LOWER BRACKET DETAIL AIRPLANES −0057 AND −0451 AND ON A6315T1168 Forward Elevator Sector Installation Figure 401 (Sheet 2) 27-30-02 Page 403 Jul 13/2020 © TEXTRON AVIATION INC. ICA-525B-27-00009 Form 2261 Rev 1...
  • Page 12 Install the screws that attach the upper sector bracket to the lower sector bracket. Tighten the screws that attach the stop block to the upper and lower sector brackets. 27-30-02 Page 404 Jul 13/2020 © TEXTRON AVIATION INC. ICA-525B-27-00009 Form 2261 Rev 1...
  • Page 13 Remove stop blocks. Remove bolts, washers, and nuts from lower end of left removable channel. (10) Remove bolts and washers from upper end of left removable channel. 27-30-02 Page 405 Jul 13/2020 © TEXTRON AVIATION INC. ICA-525B-27-00009 Form 2261 Rev 1...
  • Page 14 Install bolt, with washers on each side of the elevator pushrod bearings, nut, and cotter pin to attach elevator pushrods to the aft elevator sector. Install retainers over pushrod attachment bolt location on aft elevator sector with screws and nuts. 27-30-02 Page 406 Jul 13/2020 © TEXTRON AVIATION INC. ICA-525B-27-00009 Form 2261 Rev 1...
  • Page 15 BOLT LEFT AFT ELEVATOR SECTOR JAM NUT PUSHROD EYE END COTTER PIN DETAIL 6310T1072 A6363T1018 Elevator Aft Sector, Pushrod, and Horn Installation Figure 402 (Sheet 1) 27-30-02 Page 407 Jul 13/2020 © TEXTRON AVIATION INC. ICA-525B-27-00009 Form 2261 Rev 1...
  • Page 16 STOP JAM NUT BLOCK PIVOT BOLT ELEVATOR CABLE STOP BLOCK LOWER ATTACH BRACKET DETAIL B6363T1027 Elevator Aft Sector, Pushrod, and Horn Installation Figure 402 (Sheet 2) 27-30-02 Page 408 Jul 13/2020 © TEXTRON AVIATION INC. ICA-525B-27-00009 Form 2261 Rev 1...
  • Page 17 Move the torque tube aft until clear of the control columns. (10) Move the control column inboard to free it from the bearing support and remove the control column from airplane. 27-30-02 Page 409 Jul 13/2020 © TEXTRON AVIATION INC. ICA-525B-27-00009 Form 2261 Rev 1...
  • Page 18 CONTROL COLUMN BOOT CONNECTING LINK WASHER TURNBUCKLE TORQUE TUBE CLIP-ON NUT COTTER PIN BOLT BEARING WASHER SUPPORT 6310T1072 DETAIL A6315T1094 Control Column Installation Figure 403 (Sheet 1) 27-30-02 Page 410 Jul 13/2020 © TEXTRON AVIATION INC. ICA-525B-27-00009 Form 2261 Rev 1...
  • Page 19 Install the bolts that attach the trim tab actuator to the horizontal stabilizer. Install the elevator onto the aircraft. Refer to Chapter 55, Elevator - Maintenance Practices. 27-30-02 Page 411 Jul 13/2020 © TEXTRON AVIATION INC. ICA-525B-27-00009 Form 2261 Rev 1...
  • Page 20 CHAIN BOLT SPACER HORIZONTAL CHAIN STABILIZER GUARD SCREW DETAIL (LEFT SIDE SHOWN, RIGHT SIDE OPPOSITE) 6310T1072 A6363T1021 Elevator Trim Tab Actuator Installation Figure 404 (Sheet 1) 27-30-02 Page 412 Jul 13/2020 © TEXTRON AVIATION INC. ICA-525B-27-00009 Form 2261 Rev 1...
  • Page 21 MAKE SURE THAT THE OUTBOARD ADJUSTABLE PUSHROD IS APPROXIMATELY 7.45 INCHES (189.23 mm) BEFORE INSTALLATION. AA5561T1106 BB6363T1010 Elevator Trim Tab Actuator Installation Figure 404 (Sheet 2) 27-30-02 Page 413 Jul 13/2020 © TEXTRON AVIATION INC. ICA-525B-27-00009 Form 2261 Rev 1...
  • Page 22 Make sure the elevator trim tab is rigged properly. Refer to Elevator and Tab System Control Cables - Maintenance Practices. 27-30-02 Page 414 Jul 13/2020 © TEXTRON AVIATION INC. ICA-525B-27-00009 Form 2261 Rev 1...
  • Page 23 Install the Elevator Trim Control Wheel Sprocket and Bearing (Refer to Figure 405). Install the sprocket and bearing under the chain. Attach the sprocket to the control quadrant with a bolt, sleeve, washer, and nut. 27-30-02 Page 415 Jul 13/2020 © TEXTRON AVIATION INC. ICA-525B-27-00009 Form 2261 Rev 1...
  • Page 24 UPPER TRIM EDGE BOLT BEARING SPACER POINTER SCREW SPACER WASHER SPROCKET CONTROL WHEEL SCREW 6310T1072 DETAIL A6363T1052 AA5664T1003 Elevator Trim Control Wheel Installation Figure 405 (Sheet 1) 27-30-02 Page 416 Jul 13/2020 © TEXTRON AVIATION INC. ICA-525B-27-00009 Form 2261 Rev 1...
  • Page 25 Remove the Garmin GSA 81 Elevator Trim Servo Motor (Refer to Figure 407). Remove the electrical power from the airplane. Disengage the PITCH TRIM circuit breaker on the left circuit breaker panel in the cockpit. 27-30-02 Page 417 Jul 13/2020 © TEXTRON AVIATION INC. ICA-525B-27-00009 Form 2261 Rev 1...
  • Page 26 TRIM CABLE CABLE DRUM MOUNT ELEVATOR ASSEMBLY ELECTRIC TRIM MOTOR SHELF SUPPORT ELECTRICAL CONNECTOR (PT304) DETAIL 6310T1072 A6363T1009 Elevator Electric Trim Motor Installation Figure 406 (Sheet 1) 27-30-02 Page 418 Jul 13/2020 © TEXTRON AVIATION INC. ICA-525B-27-00009 Form 2261 Rev 1...
  • Page 27 ELEVATOR TRIM SERVO MOTOR (UT313) WASHER BOLT ELEVATOR TRIM CABLES ELECTRICAL CONNECTOR ELECTRICAL CONNECTOR (JT313) DETAIL 6310T1072 A6363T1062 Elevator Trim Servo Installation Figure 407 (Sheet 1) 27-30-02 Page 419 Jul 13/2020 © TEXTRON AVIATION INC. ICA-525B-27-00009 Form 2261 Rev 1...
  • Page 28 THE FORWARD CLAMP BLOCK SCREWS ARE INSTALLED IN THE SAME DIRECTION AS THE AFT CLAMP BLOCK SCREWS. B6363T1070 Elevator Trim Servo Installation Figure 407 (Sheet 2) 27-30-02 Page 420 Jul 13/2020 © TEXTRON AVIATION INC. ICA-525B-27-00009 Form 2261 Rev 1...
  • Page 29 TRIM SERVO GEARBOX CAPSTAN DRUM CABLE GUARD PIN CAPSTAN COVER WASHER SCREW DETAIL AIRPLANES -0632 AND ON B6360200-2 Elevator Trim Servo Installation Figure 407 (Sheet 3) 27-30-02 Page 421 Jul 13/2020 © TEXTRON AVIATION INC. ICA-525B-27-00009 Form 2261 Rev 1...
  • Page 30 -6.35 mm) (52.83 +6.35 or -6.35 mm) RIGHT ELEVATOR TRIM CABLE VIEW AIRPLANES -0536 AND ON AA6360200-2 Elevator Trim Servo Installation Figure 407 (Sheet 4) 27-30-02 Page 422 Jul 13/2020 © TEXTRON AVIATION INC. ICA-525B-27-00009 Form 2261 Rev 1...

  • Page 31: Chapter 20, Safetying - Maintenance Practices

    Refer to the Citation Standard Practices Manual, Chapter 20, Safetying - Maintenance Practices. Loosen the turnbuckle to release the cable tension. 27-30-02 Page 423 Jul 13/2020 © TEXTRON AVIATION INC. ICA-525B-27-00009 Form 2261 Rev 1...
  • Page 32 Airplanes -0632 and On have the Garmin GSM 86 Servo Gear Box installed that does not include an idler pulley, and two cables that attach to the drum with retaining clips. 27-30-02 Page 424 Jul 13/2020 © TEXTRON AVIATION INC. ICA-525B-27-00009 Form 2261 Rev 1...
  • Page 33 Remove the Allen screws that attach the control wheel cap to the control wheel. Pull the control wheel cap away from the control wheel to get access to the electrical wiring and the set screw. Tag the electrical wires. 27-30-02 Page 425 Jul 13/2020 © TEXTRON AVIATION INC. ICA-525B-27-00009 Form 2261 Rev 1...

  • Page 34: Control Wheel

    ALLEN SCREW CONTROL WHEEL CAP CONTROL WHEEL SET SCREW WASHER DETAIL LEFT SIDE SHOWN, RIGHT SIDE OPPOSITE 6310T1072 A6760T1106 Pitch Trim Switch Installation Figure 408 (Sheet 1) 27-30-02 Page 426 Jul 13/2020 © TEXTRON AVIATION INC. ICA-525B-27-00009 Form 2261 Rev 1...
  • Page 35 Put the control wheel cap in its position on the control wheel. Install the Allen screws. Do the Elevator Trim Control System Functional Check. Refer to Elevator and Tab System Control Cables - Inspection/Check. 27-30-02 Page 427 Jul 13/2020 © TEXTRON AVIATION INC. ICA-525B-27-00009 Form 2261 Rev 1...

  • Page 37: Appendix A: Illustrated Parts Catalog

    WICHITA, KANSAS 67277 SUPPLEMENT NO: ICA-525B-27-00009 APPENDIX A: ILLUSTRATED PARTS CATALOG Nomenclature Part Number Quantity GSM 86 Servo Mount 011-02490-21 011-01028-09 Standoff Kit 6361013-18 Cable, Elevator Trim Lower Forward Cable, Elevator Trim Upper 6361013-19 © TEXTRON AVIATION INC. Form 2261 Rev 1...

  • Page 39: Appendix B: Wiring Diagram Manual

    TEXTRON AVIATION INC. AIRCRAFT DIVISION WICHITA, KANSAS 67277 SUPPLEMENT NO: ICA-525B-27-00009 APPENDIX B: WIRING DIAGRAM MANUAL NOT APPLICABLE © TEXTRON AVIATION INC. Form 2261 Rev 1...