Removal of the Pylon-to-Wing Aft Attach-Fitting at RIB10

TASK 54-51-17-000-805-A
Removal of the Pylon-to-Wing Aft Attach-Fitting at RIB10

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE AFTER SHUTDOWN. THE ENGINE CAN STAY HOT FOR A LONG TIME. IF YOU DO NOT OBEY THIS INSTRUCTION, INJURY CAN OCCUR.

WARNING: PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:

THE FLIGHT CONTROLS
THE FLIGHT CONTROL SURFACES
THE LANDING GEAR AND THE RELATED DOORS
COMPONENTS THAT MOVE.

MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.

CAUTION: BEFORE YOU INSTALL/REMOVE THE GSE-TOOL, READ THE INSTRUCTIONS IN THE APPLICABLE GSE INSTRUCTION MANUAL. WHILE YOU OPERATE THIS TOOL, CAREFULLY OBEY THEM. IF YOU DO NOT OBEY THE INSTRUCTIONS, DAMAGE TO EQUIPMENT CAN OCCUR.

ZONE: 470
ZONE: 480
FIN: 4020KM1 ** ON A/C NOT FOR ALL
FIN: 4020KM2 ** ON A/C NOT FOR ALL

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE
98D54003005001	1	PYLON SHAFT EXTRACTOR
98D54403009000	1	DYNAMOMETRIC ADAPTOR
98D54503000001	1	PYLON R/I WRENCH SET

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
470	ENGINE 1 AFT PYLON
480	ENGINE 2 AFT PYLON
471CL, 472BR, 481BL, 482CR
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL, 438AR, 451AL, 452AR
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR, 461AL, 462AR

C. Referenced Information

REFERENCE	DESIGNATION
TASK 05-57-00-200-001-A	Aircraft Stability
TASK 05-57-00-200-001-B	Aircraft Stability
TASK 07-11-00-581-001-A	Lifting for Aircraft Maintenance Operations
TASK 54-53-11-000-804-A	Removal of the Pylon-to-Wing Access Panels and Doors
TASK 54-54-00-000-802-A	Removal of the Rear Pylon Fairing (RPF)
TASK 71-00-00-860-833-A	Procedure to Prevent Engine Motoring
TASK 71-00-51-000-802-A	Removal of the Power Plant (Bootstrap Method)
TASK 71-00-51-000-802-A-01	Removal of the Power Plant (JacXson Method)
TASK 71-13-10-000-801-A	Removal of the Left Engine Fan Cowl Door
TASK 71-13-20-000-801-A	Removal of the Right Fan Cowl Door
TASK 78-30-00-040-805-A	Deactivation of the Thrust Reverser System for Ground Maintenance
Pylon-to-Wing Aft Attach-Fitting at RIB10
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
TASK 78-32-01-000-802-A	Removal of the Left Thrust Reverser Half - Engine 1
TASK 78-32-02-000-802-A	Removal of the Right Thrust Reverser Half - Engine 1
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
TASK 78-32-01-000-803-A	Removal of the Left Thrust Reverser Half - Engine 2
TASK 78-32-02-000-803-A	Removal of the Right Thrust Reverser Half - Engine 2

3. Job Set-up
Subtask 54-51-17-941-082-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) Do the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833).

Subtask 54-51-17-040-067-A ** ON A/C NOT FOR ALL

B. Deactivation of the Thrust Reverser

WARNING: MAKE SURE THAT THE THRUST REVERSER IS LOCKED. IF NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE INJURY TO PERSONNEL AND/OR DAMAGE TO THE REVERSER.

(1) Make the thrust reverser unserviceable for maintenance (Ref. AMM TASK 78-30-00-040-805).

Subtask 54-51-17-869-063-A ** ON A/C NOT FOR ALL

C. Aircraft Stability
(1) Make the aircraft stable (Ref. AMM TASK 05-57-00-200-001).

Subtask 54-51-17-581-056-A ** ON A/C NOT FOR ALL

D. Aircraft Lifting
(1) Lift the aircraft (Ref. AMM TASK 07-11-00-581-001).

NOTE: It is not necessary to lift the wheels of the aircraft off the ground. It is only necessary to lift the aircraft sufficiently to prevent a force caused by the reaction of the shock absorber.

Subtask 54-51-17-020-091-A ** ON A/C NOT FOR ALL

E. Removal of the Components
(1) Remove the fan cowl doors (Ref. AMM TASK 71-13-10-000-801) (Ref. AMM TASK 71-13-20-000-801):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR.
(2) Remove the thrust reversers:
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL and 452AR (Ref. AMM TASK 78-32-01-000-802) and (Ref. AMM TASK 78-32-02-000-802)
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL and 462AR (Ref. AMM TASK 78-32-01-000-803) and (Ref. AMM TASK 78-32-02-000-803).
(3) Remove the power plant (Ref. AMM TASK 71-00-51-000-802).

Subtask 54-51-17-010-066-A ** ON A/C NOT FOR ALL

F. Removal of the Access Panels and Fairing
(1) Put an ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position:
(a) For the left pylon, in zone 470
(b) For the right pylon, in zone 480.
(2) Remove the pylon-to-wing access panels (Ref. AMM TASK 54-53-11-000-804):
(a) For the left pylon: 471CL 472BR
(b) For the right pylon: 481BL 482CR.
(3) Remove the Rear Pylon Fairing (RPF) (Ref. AMM TASK 54-54-00-000-802).

4. Procedure
Subtask 54-51-17-481-056-A ** ON A/C NOT FOR ALL

A. Installation of the Dynamometric Adaptor and Jack
(1) Install a 98D54403009000 DYNAMOMETRIC ADAPTOR (top subassembly) at RIB1.
(2) Put the jack in position below the attach-fitting at RIB1.
(3) Install the 98D54403009000 DYNAMOMETRIC ADAPTOR (bottom subassembly) on the jack and apply a force of 0 kg (0.0000 lb) 150 kg (330.6933 lb) in the top direction.

Subtask 54-51-17-020-089-A ** ON A/C NOT FOR ALL

B. Removal of the Pylon-to-Wing Aft Attach-Fitting at RIB10

Pylon-to-Wing Aft Attach-Fitting at RIB10 ** ON A/C NOT FOR ALL

(1) Remove the cotter pin (36) and discard it.
(2) Lock the fail-safe pin (31) with a pin wrench from the 98D54503000001 PYLON R/I WRENCH SET.
(3) Remove the nut (35) with a pin wrench from the 98D54503000001 PYLON R/I WRENCH SET.
(4) Remove the fail-safe pin (31).
(5) Release the tab washer (33).
(6) Release the nut (34) and lock the sleeve (32) with a special wrench from the 98D54503000001 PYLON R/I WRENCH SET.
(7) Remove the nut (34) with a pin wrench from the 98D54503000001 PYLON R/I WRENCH SET.
(8) Remove the tab washer (33) and discard it.
(9) Remove the cotter pins (37) and discard them.
(10) Lock the fail-safe pins (43) with a pin wrench from the 98D54503000001 PYLON R/I WRENCH SET.
(11) Remove the nuts (38) with a pin wrench from the 98D54503000001 PYLON R/I WRENCH SET.
(12) Remove the fail-safe pins (43).
(13) Release the tab washers (44).
(14) Release the nuts (39) and lock the sleeves (42) with a special wrench from the 98D54503000001 PYLON R/I WRENCH SET.
(15) Remove the nuts (39) with a pin wrench from the 98D54503000001 PYLON R/I WRENCH SET.
(16) Remove the tab washers (40) and discard them.
(17) Remove the sleeves (42) and (32) with the 98D54003005001 PYLON SHAFT EXTRACTOR.

NOTE: It is necessary to increase the force from the top continuously and equally until you can remove the sleeves.

(18) Remove the shackles (41).

[Rev.10 from 2021] 2026.04.01 03:59:36 UTC