Failure of the ELEC/APU GEN Pushbutton Switch

TASK 24-23-00-810-817-A
Failure of the ELEC/APU GEN Pushbutton Switch

1. Possible Causes

P/BSW-ELEC/APU GEN [2XS]

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
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 24-23-00-869-060-A ** ON A/C NOT FOR ALL

A. Test
Not applicable.

NOTE: As the APU GEN was set to OFF because of a true failure, the fault confirmation is not necessary.

4. Fault Isolation
Subtask 24-23-00-810-070-A ** ON A/C NOT FOR ALL

A. If the fault symptom is identified by the CFDS message PB SW ELEC GEN APU (2XS) and the upper ECAM-DU warning APU GEN FAULT:

replace the P/BSW-ELEC/APU GEN [2XS] on the ELEC panel 35VU.

Subtask 24-23-00-860-062-A ** ON A/C NOT FOR ALL

B. Make sure that the aircraft electrical circuits operate correctly in APU configuration.
(1) Energize the aircraft electrical circuits from the APU AMM 24-41-00-861-002.
(2) Let the APU generator operate for five minutes to make sure that it operates correctly.
(3) De-energize the aircraft electrical circuits from the APU AMM 24-41-00-862-002.

[Rev.8 from Aug 2018] 2026.04.04 04:26:40 UTC