Failure of the GAPCU

TASK 24-41-00-810-834-A
Failure of the GAPCU

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 24-41-34-000-001	Removal of the Ground Power Control Unit (GPCU)
AMM 24-41-34-400-001	Installation of the Ground Power Control Unit (GPCU)

3. Fault Confirmation
Subtask 24-41-00-869-056-A ** ON A/C NOT FOR ALL

A. Test
Not applicable, you cannot confirm this fault on the ground.

4. Fault Isolation
Subtask 24-41-00-810-096-A ** ON A/C NOT FOR ALL

A. If the maintenance message GAPCU (40XG) comes into view:
(1) Replace GAPCU [24XG] , AMM 24-41-34-000-001 and AMM 24-41-34-400-001.

[Rev.8 from Aug 2018] 2026.04.04 04:26:55 UTC