DOC AIRBUS | AMM A320FRemoval of the Fuel Filter Housing [PW11]
TASK 73-11-07-000-801-A
Removal of the Fuel Filter Housing
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
C. Referenced Information
3. Job Set-up
Subtask 73-11-07-941-050-A ** ON A/C NOT FOR ALL
Subtask 73-11-07-020-050-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 13:06:26 UTC
Removal of the Fuel Filter Housing
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:
MAKE SURE THAT THE FUEL SYSTEM IS SHUT OFF BEFORE DOING THIS PROCEDURE. IF YOU DO NOT OBEY THIS WARNING, INJURY CAN OCCUR.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | CONTAINER 5 L (1.32 USGAL) |
| No specific | AR | COVER - PROTECTION |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1) | |
| 437AL, 438AR, 452AR | |
| FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2) | |
| 447AL, 448AR, 462AR | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 31-60-00-860-001-A | EIS Start Procedure |
| TASK 71-00-00-860-833-A | Procedure to Prevent Engine Motoring |
| TASK 71-13-00-010-802-A | Opening of the Fan Cowl Doors |
| TASK 73-11-06-000-801-A | Removal of the Fuel Filter Element |
| TASK 78-30-00-040-805-A | Deactivation of the Thrust Reverser System for Ground Maintenance |
| TASK 78-36-00-010-802-A | Opening of the Thrust Reverser Cowl-Doors |
Fuel Filter HousingSubtask 73-11-07-941-050-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 73-11-07-860-050-A ** ON A/C NOT FOR ALL (1) Do the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833)
B. Aircraft Maintenance Configuration
(1) Do the EIS start procedure (EWD DU, SD DU only) (Ref. AMM TASK 31-60-00-860-001).
(2) On the SD ENG fuel page, make sure that the LP valve is shown closed.
Subtask 73-11-07-865-050-A ** ON A/C NOT FOR ALL (1) Do the EIS start procedure (EWD DU, SD DU only) (Ref. AMM TASK 31-60-00-860-001).
(2) On the SD ENG fuel page, make sure that the LP valve is shown closed.
C. Open, safety and tag these circuit breakers in this sequence:
Subtask 73-11-07-010-050-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 4020KM1 (POWER PLANTDEMOUNTABLE, ENG 1) | |||
| 49VU | FUEL/LP VALVE/MOT1/ENG1 | 1QG | A08 |
| 121VU | FUEL/LP VALVE/MOT2/ENG1 | 3QG | M25 |
| FOR FIN: 4020KM2 (POWER PLANTDEMOUNTABLE, ENG 2) | |||
| 49VU | FUEL/LP VALVE/MOT1/ENG2 | 2QG | A09 |
| 121VU | FUEL/LP VALVE/MOT2/ENG2 | 4QG | M26 |
D. Get Access
(1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR
Subtask 73-11-07-040-050-A ** ON A/C NOT FOR ALL (1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR
E. Deactivation of the Thrust Reverser for Maintenance
Subtask 73-11-07-010-051-A ** ON A/C NOT FOR ALL WARNING:
YOU MUST DEACTIVATE THE THRUST REVERSER BEFORE YOU DO WORK ON OR AROUND IT. IF YOU DO NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE AN INJURY AND/OR DAMAGE.
(1) Do the deactivation of the thrust reverser system for maintenance (Ref. AMM TASK 78-30-00-040-805). F. Get Access
(1) Open the right thrust-reverser cowl-door (Ref. AMM TASK 78-36-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
452AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
462AR
4. Procedure(1) Open the right thrust-reverser cowl-door (Ref. AMM TASK 78-36-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
452AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
462AR
Subtask 73-11-07-020-050-A ** ON A/C NOT FOR ALL
A. Removal of the Fuel Filter Housing
(1) Make sure that you wipe clean all the parts and tools to remove contamination and to prevent damage to the engine.
(2) Find the fuel filter housing attached to the fuel manifold on the top of the Main Gearbox (MGB) at the 4 o'clock position.
(3) Put the CONTAINER 5 L (1.32 USGAL) under the fuel manifold.
(4) Remove the fuel filter element (Ref. AMM TASK 73-11-06-000-801).
(5) Remove the fuel filter housing (5) from the fuel manifold as follows:
(a) Disengage the exciter cables and wiring harness (WC08) from the bracket (1).
(b) Remove the bottom three bolts (2) and spacers (3) from the housing (5).
(c) Remove the top three bolts (2) and the bracket (1) from the housing (5).
(d) Remove the housing (5) from the fuel manifold.
(e) Remove and discard the packing (4) and (6) from the housing (5).
(6) Installation of protection covers
(1) Make sure that you wipe clean all the parts and tools to remove contamination and to prevent damage to the engine.
(2) Find the fuel filter housing attached to the fuel manifold on the top of the Main Gearbox (MGB) at the 4 o'clock position.
(3) Put the CONTAINER 5 L (1.32 USGAL) under the fuel manifold.
(4) Remove the fuel filter element (Ref. AMM TASK 73-11-06-000-801).
(5) Remove the fuel filter housing (5) from the fuel manifold as follows:
(a) Disengage the exciter cables and wiring harness (WC08) from the bracket (1).
(b) Remove the bottom three bolts (2) and spacers (3) from the housing (5).
(c) Remove the top three bolts (2) and the bracket (1) from the housing (5).
(d) Remove the housing (5) from the fuel manifold.
(e) Remove and discard the packing (4) and (6) from the housing (5).
(6) Installation of protection covers
CAUTION:
INSTALL PROTECTION COVERS ON ALL THE OPENINGS IMMEDIATELY TO PREVENT DAMAGE TO THE ENGINE.
(a) Make sure that you install COVER - PROTECTION as necessary to prevent damage to the engine.