Failure Message Related to External Power Given in PFRs that Follow in Sequence

TASK 24-41-00-810-835-A
Failure Message Related to External Power Given in PFRs that Follow in Sequence

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 24-41-00-860-801	Cold Start of the Ground and Auxiliary Power Control Unit (GAPCU)
AMM 24-41-00-861-002	Energize the Aircraft Electrical Circuits from the External Power
AMM 24-41-00-862-002	De-energize the Aircraft Electrical Circuits Supplied from the External Power

3. Fault Confirmation
Subtask 24-41-00-869-057-B ** ON A/C NOT FOR ALL

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

4. Fault Isolation
Subtask 24-41-00-810-097-B ** ON A/C NOT FOR ALL

A. Do the cold start of the GAPCU AMM 24-41-00-860-801.

Subtask 24-41-00-860-075-B ** ON A/C NOT FOR ALL

B. Do these procedures to make sure that the system operates correctly:
(1) Energize the aircraft electrical circuits from the external power AMM 24-41-00-861-002.
(2) De-energize the aircraft electrical circuits from the external power AMM 24-41-00-862-002.

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