Energize the Aircraft Electrical Circuits from the APU

TASK 24-41-00-861-002-A-01
Energize the Aircraft Electrical Circuits from the APU

WARNING: MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED BEFORE YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT. UNWANTED ELECTRICAL POWER CAN BE DANGEROUS.

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
TASK 12-31-31-660-001-A	Cold Weather Maintenance - Indicating/Recording systems and Navigation
TASK 12-34-24-869-002-A	Aircraft Grounding (Earthing) for the Maintenance Operations
TASK 12-34-24-869-002-A-01	Aircraft Grounding (Earthing) during Transit, Turnaround or Overnight Stop
TASK 31-60-00-860-001-A	EIS Start Procedure
TASK 49-00-00-860-005-A	APU Start by External Power
TASK 49-00-00-860-005-A-01	APU Start by Batteries
TASK 49-00-00-860-008-A	APU Start by External Power
TASK 49-00-00-860-008-A-01	APU Start by Batteries

3. Job Set-up
Subtask 24-41-00-860-051-A

A. Aircraft Maintenance Configuration

NOTE: In the avionics compartment, if the temperature is below -15 deg.C (5.00 deg.F), do the cold-weather maintenance procedure (Ref. AMM TASK 12-31-31-660-001).

(1) Ground (Earth) the aircraft if necessary (Ref. AMM TASK 12-34-24-869-002):

For grounding (earthing) you must obey the local area regulations.

(2) On the ELEC panel 35VU, make sure that:

the GEN1, GEN2, APU GEN, BUS TIE and AC ESS FEED pushbutton switches are pushed,

(3) On the overhead CTL and IND panel 22VU, make sure that BLOWER and EXTRACT pushbutton switches are pushed.

4. Procedure
Subtask 24-41-00-861-052-A

A. Energize the aircraft electrical circuit from the APU.
(1) Start the APU:

GTCP 36-300 (Ref. AMM D/O 49-00-00-86)
or
APS 3200 (Ref. AMM TASK 49-00-00-860-005)
or
131-9(A) (Ref. AMM TASK 49-00-00-860-008).

(2) Do the EIS start procedure (upper ECAM DU and lower ECAM DU only)
(Ref. AMM TASK 31-60-00-860-001).
(3) On the ECAM control panel, push the ELEC key (on the lower ECAM DU, the ELEC page comes into view).
(4) Make sure that the APU energizes the aircraft electrical circuit correctly.
(5) On the VENTILATION section of the panel 22VU:

make sure that the FAULT legends of the BLOWER and EXTRACT pushbutton switches are off.

NOTE: This is an indication of the correct operation of the avionics equipment ventilation.

[Rev.10 from 2021] 2026.03.31 23:24:06 UTC