DOC AIRBUS | AMM A320FRemoval of the Forward Vibration Sensor [PW11]
TASK 77-32-21-000-801-A
Removal of the Forward Vibration Sensor
A. Use this procedure to remove the forward vibration sensor.
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 77-32-21-941-050-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 03:19:04 UTC
Removal of the Forward Vibration Sensor
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.
1. Reason for the JobA. Use this procedure to remove the forward vibration sensor.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 1M(3 FT) |
| No specific | 1 | COVER - PROTECTION |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 400 | POWER PLANT, NACELLES AND PYLONS |
| FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1) | |
| 437AL, 438AR, 451AL | |
| FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2) | |
| 447AL, 448AR, 461AL | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 71-13-00-010-802-A | Opening of the Fan Cowl Doors |
| TASK 73-25-34-400-802-A | Installation of the Engine Interface Unit (EIU) |
| 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 |
Subtask 77-32-21-941-050-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(1) Do the procedure to prevent engine motoring and to stop the electrical supply to the Electronic Engine Control (EEC)
(Ref. AMM TASK 73-25-34-400-802).
Subtask 77-32-21-865-050-A ** ON A/C NOT FOR ALL (1) Do the procedure to prevent engine motoring and to stop the electrical supply to the Electronic Engine Control (EEC)
(Ref. AMM TASK 73-25-34-400-802).
B. Open, safety and tag these circuit breakers in this sequence:
Subtask 77-32-21-010-050-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 4020KM1 (POWER PLANTDEMOUNTABLE, ENG 1) | |||
| 121VU | PHMU/ENG1 | 95KS1 | P44 |
| FOR FIN: 4020KM2 (POWER PLANTDEMOUNTABLE, ENG 2) | |||
| 121VU | PHMU/ENG2 | 95KS2 | P45 |
C. 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
(2) Put an ACCESS PLATFORM 1M(3 FT) in position.
Subtask 77-32-21-040-050-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
(2) Put an ACCESS PLATFORM 1M(3 FT) in position.
D. Deactivation of the Thrust Reverser for Maintenance
Subtask 77-32-21-010-051-B ** 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). E. Get Access
POST SB C-72-00-0058A (Config-2 Sensor Relocation Configuration)
(1) Open the left thrust-reverser cowl-doors (Ref. AMM TASK 78-36-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL.
END OF POST SB C-72-00-0058A (Config-2 Sensor Relocation Configuration)
Subtask 77-32-21-010-051-A POST SB C-72-00-0058A (Config-2 Sensor Relocation Configuration)
(1) Open the left thrust-reverser cowl-doors (Ref. AMM TASK 78-36-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL.
END OF POST SB C-72-00-0058A (Config-2 Sensor Relocation Configuration)
DELETED
4. ProcedureCAUTION:
WIPE CLEAN ALL PARTS AND TOOLS AS NECESSARY TO REMOVE UNWANTED DEBRIS AND PREVENT DAMAGE TO THE ENGINE.
Subtask 77-32-21-020-050-B ** ON A/C NOT FOR ALL A. Removal of the Forward Vibration Sensor
Removal of the Forward Vibration Sensor Config-2 Sensor Relocation Configuration ** ON A/C NOT FOR ALL
POST SB C-72-00-0058A (Config-2 Sensor Relocation Configuration)
(1) Remove the forward vibration sensor (1) as follows:
(a) Find the forward vibration sensor (1) attached to the bracket on flange E at the 7 o'clock position.
(2) Remove the wiring harness (W03) connector (P32) as follows:
(a) Disconnect the wiring harness (W03) connector (P32) from the forward vibration sensor (1) receptacle (J32) with the PLIERS - JAWED, SOFT.
(b) Remove the three bolts (2) and the forward vibration sensor (1) from the bracket.
(3) Installation of the protection covers:
END OF POST SB C-72-00-0058A (Config-2 Sensor Relocation Configuration)
Removal of the Forward Vibration Sensor Config-2 Sensor Relocation Configuration ** ON A/C NOT FOR ALL (1) Remove the forward vibration sensor (1) as follows:
(a) Find the forward vibration sensor (1) attached to the bracket on flange E at the 7 o'clock position.
(2) Remove the wiring harness (W03) connector (P32) as follows:
(a) Disconnect the wiring harness (W03) connector (P32) from the forward vibration sensor (1) receptacle (J32) with the PLIERS - JAWED, SOFT.
(b) Remove the three bolts (2) and the forward vibration sensor (1) from the bracket.
(3) Installation of the protection covers:
CAUTION:
INSTALL PROTECTION COVERS ON ALL THE OPENINGS IMMEDIATELY TO PREVENT DAMAGE TO THE ENGINE.
(a) Make sure that you install the COVER - PROTECTION as necessary to prevent damage to the engine. END OF POST SB C-72-00-0058A (Config-2 Sensor Relocation Configuration)