DOC AIRBUS | AMM A320FDe-energize the Ground Service Network Supplied from the External Power
TASK 24-42-00-862-001-A
De-energize the Ground Service Network Supplied from the External Power
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Work Zones and Access Panels
3. Job Set-up
Subtask 24-42-00-869-058-A
Subtask 24-42-00-862-054-A
Subtask 24-42-00-080-050-A
[Rev.10 from 2021]
2026.04.01 03:47:56 UTC
De-energize the Ground Service Network Supplied from the External Power
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Work Zones and Access Panels
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 121AL |
Subtask 24-42-00-869-058-A
A. Not Applicable
4. ProcedureSubtask 24-42-00-862-054-A
A. De-energize the ground service network
(1) On the front circuit breaker panel 2000VU which is in the middle of the cabin ceiling at the level of the FWD passenger/crew door, put the MAINT BUS switch in the OFF position.
(2) On the panel 108VU, the EXT PWR/NOT IN USE indicator light comes on. This shows that the ground service network is de-energized correctly.
5. Close-up(1) On the front circuit breaker panel 2000VU which is in the middle of the cabin ceiling at the level of the FWD passenger/crew door, put the MAINT BUS switch in the OFF position.
(2) On the panel 108VU, the EXT PWR/NOT IN USE indicator light comes on. This shows that the ground service network is de-energized correctly.
Subtask 24-42-00-080-050-A
A. Obey the instructions given with the ground power and stop the ground power unit:
Subtask 24-42-00-020-050-A - on the panel 35VU, the legends of all the pushbutton switches are off,
- on the panel 108VU, all the lights are off.
B. Put the aircraft back to its initial configuration.
(2) Disconnect all the ground (earth) cables, if necessary.
Subtask 24-42-00-410-052-A WARNING:
DE-ENERGIZE THE ELECTRICAL POWER SUPPLY BEFORE YOU DISCONNECT THE CONNECTOR OF THE GROUND POWER UNIT. IF NOT DANGEROUS ARCING CAN OCCUR.
(1) Disconnect the connector of the ground power unit and release the snap hook from the support. (2) Disconnect all the ground (earth) cables, if necessary.