DOC AIRBUS | AMM A320FRemoval of the Flight Warning Computer (FWC)
TASK 31-53-34-000-001-A
Removal of the Flight Warning Computer (FWC)
1. Reason for the Job
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 31-53-34-810-050-A
Subtask 31-53-34-020-050-A
[Rev.10 from 2021]
2026.04.01 00:37:28 UTC
Removal of the Flight Warning Computer (FWC)
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE |
| No specific | AR | CAP - BLANKING |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 127 | REAR AVIONIC COMPARTMENT |
| 128 | REAR AVIONIC COMPARTMENT |
| 824 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 31-32-00-860-008-A | Procedure to Get Access to the SYSTEM REPORT/TEST/INST Page |
| TASK 52-41-00-010-002-A | Open the Avionics Compartment Doors for Access |
Flight Warning Computer (FWC)Subtask 31-53-34-810-050-A
A. Printing of Trouble Shooting Data (TSD)
(a) Get the SYSTEM REPORT/TEST/INST menu page (Ref. AMM TASK 31-32-00-860-008).
(b) On this page, push the line key adjacent to the ECAM 1 or ECAM 2 page.
(c) On the ECAM 1 or ECAM 2 page, push the line key adjacent to the LAST LEG REPORT page or PREVIOUS LEG REPORT page.
(d) Do a print of the TSD with the maintenance message and add the printed TSD sheet to the removed computer.
Subtask 31-53-34-865-050-A NOTE: TSD are used for analysis and TSM (detailed troubleshooting).
(1) If available, you can print the TSD as follows: (a) Get the SYSTEM REPORT/TEST/INST menu page (Ref. AMM TASK 31-32-00-860-008).
(b) On this page, push the line key adjacent to the ECAM 1 or ECAM 2 page.
(c) On the ECAM 1 or ECAM 2 page, push the line key adjacent to the LAST LEG REPORT page or PREVIOUS LEG REPORT page.
(d) Do a print of the TSD with the maintenance message and add the printed TSD sheet to the removed computer.
B. Open, safety and tag this(these) circuit breaker(s):
Subtask 31-53-34-010-050-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C ALL | |||
| FOR FIN: 1WW1 (FWC1) | |||
| 49VU | FWS/FWC1/SPLY | 3WW | F01 |
| FOR FIN: 1WW2 (FWC2) | |||
| 121VU | EIS/FWC2/SPLY | 2WW | Q07 |
C. Get Access
(1) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position in zone 128, at the access door 824.
(2) Open the access door 824 (Ref. AMM TASK 52-41-00-010-002).
4. Procedure(1) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position in zone 128, at the access door 824.
(2) Open the access door 824 (Ref. AMM TASK 52-41-00-010-002).
Subtask 31-53-34-020-050-A
A. Removal of the Flight Warning Computer (FWC)
(1) Loosen the nuts (4).
(2) Lower the nuts (4).
(3) Pull the FWC (1) on its rack (3) to disconnect the electrical connectors (2).
(4) Remove the FWC (1) from its rack (3).
(5) Put CAP - BLANKING on the disconnected electrical connectors (2).
(1) Loosen the nuts (4).
(2) Lower the nuts (4).
(3) Pull the FWC (1) on its rack (3) to disconnect the electrical connectors (2).
(4) Remove the FWC (1) from its rack (3).
(5) Put CAP - BLANKING on the disconnected electrical connectors (2).