Removal of the Pylon-to-Wing Forward Attach-Fitting at RIB5

TASK 54-51-17-000-804-A
Removal of the Pylon-to-Wing Forward Attach-Fitting at RIB5

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.

WARNING: DO NOT GET FUEL IN YOUR MOUTH, EYES OR ON YOUR SKIN. DO NOT BREATHE THE FUMES FROM THE FUEL. KEEP THE FUEL AWAY FROM SPARKS, FLAME AND HEAT. FUEL IS POISONOUS AND FLAMMABLE, WHICH CAN CAUSE INJURIES TO PERSONS AND DAMAGE TO 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
No specific	AR	CAP - BLANKING
No specific	AR	CONTAINER 3 L(3/4 USGAL)
98D54003005001	1	PYLON SHAFT EXTRACTOR
98D54403000000	1	DUMMY SHACKLES-PYLON TO WING YOKES
98D54403001000	1	DUMMY SLEEVES-PYLON TO WING YOKES
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
413DL, 413ET, 423ET, 424DR, 471AL, 471BL, 472AR, 481AL, 482AR, 482BR
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 28-00-00-910-001-A	Fuel Safety Procedures
TASK 28-16-42-000-001-A	Removal of the Fuel Recirculation Check-valve
TASK 54-53-11-000-804-A	Removal of the Pylon-to-Wing Access Panels and Doors
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
Electrical Connectors and Rods
Fuel System - Pylon-to-Wing Junction
Pylon-to-Wing Forward Attach-Fitting at RIB5
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 54-51-17-941-080-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).
(2) Obey the fuel safety procedures when you do work on the fuel system (Ref. AMM TASK 28-00-00-910-001).

Subtask 54-51-17-040-065-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 54-51-17-869-062-A ** ON A/C NOT FOR ALL

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

Subtask 54-51-17-581-055-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 54-51-17-020-086-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 54-51-17-010-064-A ** ON A/C NOT FOR ALL

F. Removal of the Access Panels and Doors
(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 and doors (Ref. AMM TASK 54-53-11-000-804):
(a) For the left pylon: 413ET 413DL 471AL 471BL 472AR
(b) For the right pylon: 423ET 424DR 481AL 482AR 482BR.

Subtask 54-51-17-020-087-A ** ON A/C NOT FOR ALL

G. Removal of the Electrical Connectors and the Rods

Electrical Connectors and Rods ** ON A/C NOT FOR ALL

(1) Disconnect electrical connectors 6HA1-A (6HA2-A) (18) and 6HA1-B (6HA2-B) (17) from the temperature sensors.
(2) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(3) Remove the nuts (16), the washers (2) and the bolts (3).
(4) Remove the clamps (9) that are installed on the rod (10).
(5) Remove the clamps (1).
(6) Remove the cotter pins (4) and (13) and discard them.
(7) Remove the nuts (5) and the washers (6).
(8) Remove the bolts (8) and the sleeves (7).
(9) Remove the nuts (12) and the washers (11).
(10) Remove the bolts (15).
(11) Remove the rods (10) and (14).

Subtask 54-51-17-020-088-A ** ON A/C NOT FOR ALL

H. Disconnection of the Fuel/Defuel System Components
(1) Put a CONTAINER 3 L(3/4 USGAL) in position below the fuel connections.
(2) Disconnect the fuel recirculation check-valve from its connection adjacent RIB7 of the pylon box (Ref. AMM TASK 28-16-42-000-001).
(3) Disconnect the fuel line coupling from its connection adjacent to RIB5 of t pylon box. To do this:

Fuel System - Pylon-to-Wing Junction ** ON A/C NOT FOR ALL

(a) Remove the nuts (19) and the bolts (18) from the clamps (16).
(b) Disconnect the bonding straps (17) from the clamps (16).
(c) Remove the clamps (16) from the pipe (20).
(d) Remove the nuts (13), the bolts (29), the washers (28) and the clamps (12)
(e) Disengage the sleeves (27) from the fuel pipe assemblies (30) and (31).
(f) Move the sleeves (27) on the pipe (20).
(g) Remove the pipe (20) from the fuel pipe assemblies (30) and (31). To do this:

WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.

1 Remove the lockwires from the connectors (25) and the nuts (14) and (23) and discard them.
2 Loosen the nuts (14) and (23).
3 Remove the nuts (14) and (23) and the connectors (25).
4 Remove the pipe (20) from the fuel pipe assemblies (30) and (31).
5 Remove the retaining rings (24) from the pipe (20) and discard them.
6 Discard the O-rings (21) and (22).
7 Put blanking plugs on the disconnected line ends.
(h) Remove the retaining rings (15) from the fuel pipe assemblies (30) and (31) discard them.
(i) Remove the O-rings (11) and (26) from the fuel pipe assemblies (30) and (31) and discard them.
(j) Put blanking caps on the disconnected fuel pipe assemblies (30) and (31).

4. Procedure
Subtask 54-51-17-481-054-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 300 +100 kg or -100 kg (661.3866 +220.4622 lb or -220.4622 lb) in the top direction.

Subtask 54-51-17-020-090-A ** ON A/C NOT FOR ALL

B. Removal of the Pylon-to-Wing Forward Attach-Fitting at RIB5

Pylon-to-Wing Forward Attach-Fitting at RIB5 ** ON A/C NOT FOR ALL

NOTE: If the time necessary to complete this task is more than one hour, it is necessary to install the 98D54403000000 DUMMY SHACKLES-PYLON TO WING YOKES and the 98D54403001000 DUMMY SLEEVES-PYLON TO WING YOKES.

(1) Remove the cotter pins (11) and discard them.
(2) Lock the fail-safe pins (16) with a pin wrench from the 98D54503000001 PYLON R/I WRENCH SET.
(3) Remove the nuts (12) with a pin wrench from the 98D54503000001 PYLON R/I WRENCH SET.
(4) Remove the fail-safe pins (16).
(5) Release the tab washers (14).
(6) Release the nuts (13) and lock the sleeves (15) with a special wrench from the 98D54503000001 PYLON R/I WRENCH SET.
(7) Remove the nuts (13) with a pin wrench from the 98D54503000001 PYLON R/I WRENCH SET.
(8) Remove the tab washers (14) and discard them.
(9) Remove the sleeves (15) with the 98D54003005001 PYLON SHAFT EXTRACTOR. Remove the sleeves at the bottom first.

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

(10) Remove the shackles (17).

[Rev.10 from 2021] 2026.04.01 02:00:35 UTC