DOC AIRBUS | AMM A320FOperational Check of the GAPCU via the CFDS
TASK 24-41-00-740-002-B
Operational Check of the GAPCU via the CFDS
Refer to the MPD TASK: 242000-01
OPERATIONAL CHECK OF GAPCU VIA CFDS
2. Job Set-up Information
A. Work Zones and Access Panels
B. Referenced Information
3. Job Set-up
Subtask 24-41-00-860-057-A ** ON A/C NOT FOR ALL
Subtask 24-41-00-710-064-A ** ON A/C NOT FOR ALL
Subtask 24-41-00-860-058-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.03.31 23:24:14 UTC
Operational Check of the GAPCU via the CFDS
ZONE: 210
1. Reason for the JobRefer to the MPD TASK: 242000-01
OPERATIONAL CHECK OF GAPCU VIA CFDS
2. Job Set-up Information
A. Work Zones and Access Panels
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 210 | CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 24-41-00-861-002-A | Energize the Aircraft Electrical Circuits from the External Power |
| TASK 24-41-00-861-002-A-01 | Energize the Aircraft Electrical Circuits from the APU |
| TASK 24-41-00-861-002-A-02 | Energize the Aircraft Electrical Circuits from Engine 1(2) |
| TASK 24-41-00-862-002-A | De-energize the Aircraft Electrical Circuits Supplied from the External Power |
| TASK 24-41-00-862-002-A-01 | De-energize the Aircraft Electrical Circuits Supplied from the APU |
| TASK 24-41-00-862-002-A-02 | De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2) |
| TASK 31-32-00-860-004-A | Procedure to Get Access to the SYSTEM REPORT/TEST/ELEC Page |
Subtask 24-41-00-860-057-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits only from the external power.
(Ref. AMM TASK 24-41-00-861-002).
(2) On the MCDU, get the SYSTEM REPORT/TEST/ELEC page (Ref. AMM TASK 31-32-00-860-004).
Subtask 24-41-00-865-052-A ** ON A/C NOT FOR ALL (1) Energize the aircraft electrical circuits only from the external power.
(Ref. AMM TASK 24-41-00-861-002).
(2) On the MCDU, get the SYSTEM REPORT/TEST/ELEC page (Ref. AMM TASK 31-32-00-860-004).
B. Make sure that this(these) circuit breaker(s) is(are) closed:
4. Procedure| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 122VU | ELEC/GCU/2 | 2XU2 | T27 |
| 122VU | ELEC/GCU/1 | 2XU1 | T26 |
| 123VU | GND/PWR/PROT | 2XG | AB07 |
Subtask 24-41-00-710-064-A ** ON A/C NOT FOR ALL
A. BITE Test of the GAPCU
Subtask 24-41-00-710-066-A ** ON A/C NOT FOR ALL NOTE: The actions and the results of this procedure occur on the MCDU you use.
| ACTION | RESULT |
|---|---|
| 1.Push the line key adjacent to the AC GEN indication. | The EPGS page comes into view. |
| 2.Push the line key adjacent to the SYSTEM TEST indication. | The EPGS/SYSTEM TEST page with the CONFIRM APU AND ENGINES ARE NOT RUNNING indication comes into view. |
| 3.Push the line key adjacent to the START TEST indication. | - The IN PROGRESS 60s indication comes into view. - Then the GAPCU TEST PASSED indication comes into view. |
B. Check of the Class 3 Faults of the GAPCU from the CFDS
5. Close-upNOTE: The actions and the results of this procedure occur on the MCDU you use.
| ACTION | RESULT |
|---|---|
| 1.Push the line key adjacent to the AC GEN indication. | The EPGS page comes into view. |
| 2.Push the line key adjacent to the CLASS 3 FAULTS indication. | The EPGS CLASS 3 FAULTS page comes into view. |
| 3.Push the line key adjacent to the GAPCU indication. | The NO FAULT DETECTED indication comes into view. |
Subtask 24-41-00-860-058-A ** ON A/C NOT FOR ALL
A. Put the aircraft back to its initial configuration.
(1) On the MCDU, push the line select key adjacent to the RETURN indication until the CFDS menu page comes into view.
(2) De-energize the aircraft electrical circuits supplied from the external power.
(Ref. AMM TASK 24-41-00-862-002).
(1) On the MCDU, push the line select key adjacent to the RETURN indication until the CFDS menu page comes into view.
(2) De-energize the aircraft electrical circuits supplied from the external power.
(Ref. AMM TASK 24-41-00-862-002).