Operational Test of the Bleed Air System with the APU running and the Engines at Idle

TASK 36-11-00-710-804-A
Operational Test of the Bleed Air System with the APU running and the Engines at Idle

WARNING: MAKE SURE THAT THE WHEEL CHOCKS ARE IN POSITION. MOVEMENT OF THE AIRCRAFT CAN BE DANGEROUS.

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

REFERENCE	DESIGNATION
TASK 24-41-00-861-002-A	Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01	Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02	Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 24-41-00-862-002-A	De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01	De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02	De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 31-60-00-860-001-A	EIS Start Procedure
TASK 31-60-00-860-002-A	EIS Stop Procedure
TASK 49-00-00-860-008-A	APU Start by External Power
TASK 49-00-00-860-008-A-01	APU Start by Batteries
TASK 49-00-00-860-009-A	APU Shutdown by External Power (131-9(A))
TASK 49-00-00-860-009-A-01	APU Shutdown by Batteries (131-9(A))
TASK 71-00-00-860-814-A	Shutdown of the Engine
TASK 71-00-00-860-823-A	Start the Engine (Normal Automatic Start)
TASK 71-00-00-910-804-A	General Warnings and Cautions and Related Safety Data
BLEED Page

3. Job Set-up
Subtask 36-11-00-941-203-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) Obey the safety precautions during the engine ground operations (Ref. AMM TASK 71-00-00-910-804).

Subtask 36-11-00-861-197-A ** ON A/C NOT FOR ALL

B. Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).

Subtask 36-11-00-865-266-A ** ON A/C NOT FOR ALL

C. Make sure that this(these) circuit breaker(s) is(are) closed:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
FOR FIN: 4020KM1 (POWER PLANTDEMOUNTABLE, ENG 1)
49VU	AIR BLEED/APU BLEED VLV CTL/BMC1 OVRD	11HV	D14
49VU	AIR BLEED/ENG 1/CTL	2HA1	D11
122VU	AIR BLEED/ENG 1/MONG	3HA1	Z23
122VU	AIR BLEED/X FEED VALVE/NORM	1HV	Z20
FOR FIN: 4020KM2 (POWER PLANTDEMOUNTABLE, ENG 2)
49VU	AIR BLEED/X FEED/VALVE/BAT	2HV	D13
49VU	AIR BLEED/ENG 2/MONG	3HA2	D12
122VU	AIR BLEED/ENG 2/CTL	2HA2	Z22
122VU	AIR BLEED/APU BLEED VLV CTL/BMC2 OVRD	12HV	Z19

Subtask 36-11-00-860-262-A ** ON A/C NOT FOR ALL

D. Aircraft Maintenance Configuration
(1) Do the EIS start procedure (upper ECAM DU and lower ECAM DU only)
(Ref. AMM TASK 31-60-00-860-001).
(2) In the cockpit, on AIR COND panel 30VU:
(a) Push the ENG 1 and ENG 2 BLEED pushbutton switches (the OFF legends go off).
(b) Push the PACK 1 and 2 pushbutton switches (the OFF legends go off).
(c) Set the crossbleed selector switch to the AUTO position.
(d) Release the APU BLEED pushbutton switch (the ON legend goes off).
(e) Release the RAM AIR pushbutton switch (the ON legend goes off).
(3) In the cockpit, on the overhead panel, on the ANTI ICE section of panel 25VU:
(a) Release the ENG 1 and ENG 2 pushbutton switches (the ON legends go off).
(b) Release the WING pushbutton switch (the ON legend goes off).
(4) Start the APU to pressurize the pneumatic system:

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

NOTE: After the APU starts, Airbus recommends you to wait for a minimum of 3 minutes for the warm-up period, before you select the APU BLEED.

(5) Start engines 1 and 2 and keep them at idle (Ref. AMM TASK 71-00-00-860-823).

4. Procedure
Subtask 36-11-00-710-081-A ** ON A/C NOT FOR ALL

A. Operational Test of the Bleed Air System at Idle

Action	Result
1.On the ECAM control panel, push the BLEED key.	On the SD, the BLEED page comes into view.
2.On AIR COND panel 30VU: Push the APU BLEED pushbutton switch (the ON legend are on).	On the SD, on the BLEED page: Make sure that the bleed valves of engines 1 and 2 are closed (horizontal green line). Make sure that the High Pressure Valve (HPV) of engines 1 and 2 are closed (vertical green line). Make sure that the APU bleed valve is open (vertical green line).
3.On AIR COND panel 30VU: Release the APU BLEED pushbutton switch (the ON legend goes off).	On the SD, on the BLEED page: Make sure that the bleed valves of engines 1 and 2 are open (vertical green line). Make sure that the HPV of engines 1 and 2 are open (horizontal green line). Make sure that the APU bleed valve is closed (horizontal green line). Make sure that the engine 1(2) pressure is between 20 psi (1.38 bar) and 40 psi (2.76 bar). Make sure that the engine 1(2) temperature is between 100 DEG.C (212 DEG.F) and 205 DEG.C (401 DEG.F).
4.On AIR COND panel 30VU: Set the crossbleed selector switch to the OPEN position.	On the SD, on the BLEED page: Make sure that the crossbleed valve is open (horizontal green line).
5.On AIR COND panel 30VU: Set the crossbleed selector switch to the SHUT position.	On the SD, on the BLEED page: Make sure that the crossbleed valve is closed (vertical green line).
6.On AIR COND panel 30VU: Set the crossbleed selector switch to the AUTO position.	On the SD, on the BLEED page: Make sure that the crossbleed valve is closed (vertical green line).

5. Close-up
Subtask 36-11-00-860-263-A ** ON A/C NOT FOR ALL

A. Put the aircraft back to its initial configuration.
(1) Stop engines 1 and 2 (Ref. AMM TASK 71-00-00-860-814).
(2) Stop the APU:

For GTCP 36-300 APU (Ref. AMM D/O 49-00-00-86)
For APS 3200 APU (Ref. AMM D/O 49-00-00-86)
For 131-9(A) APU (Ref. AMM TASK 49-00-00-860-009).

(3) Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002).
(4) On the ECAM control panel, set the UPPER DISPLAY and LOWER DISPLAY potentiometers to OFF.
(5) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).

[Rev.10 from 2021] 2026.04.01 04:25:32 UTC