Leak Check of the LH Wing using Bleed Air from the opposite Engine 2

TASK 36-11-00-720-809-A
Leak Check of the LH Wing using Bleed Air from the opposite Engine 2

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE AFTER SHUTDOWN. THE ENGINE CAN STAY HOT FOR A LONG TIME. IF YOU DO NOT OBEY THIS INSTRUCTION, INJURY CAN OCCUR.

1. Reason for the Job
To make sure that there are no leaks from the air bleed system downstream of the high-pressure bleed valve and intermediate-pressure bleed check-valve.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific	1	ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE
No specific	AR	PLUG - BLANKING
No specific	AR	WARNING NOTICE(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
192FB
191BT, 191CT, 197BB, 521AB, 521BT, 521CB, 521EB
FOR [1000EM1] (ENGINE-1)
413CL, 413DL, 414CR, 414FR, 437AL, 451AL

C. Referenced Information

REFERENCE	DESIGNATION
TASK 31-60-00-860-001-A	EIS Start Procedure
TASK 36-22-00-790-001-A	Leak Check on all the Bleed Air Ducts and the Packs Components
TASK 53-35-11-000-001-A	Removal of the Wing-to-Fuselage Fairings
TASK 53-35-11-400-001-A	Installation of the Wing-to-Fuselage Fairings
TASK 57-41-37-000-004-A	Removal of the Pressure Relief Panels
TASK 57-41-37-400-002-A	Installation of the Pressure Relief Panels
TASK 71-00-00-710-003-A	Engine Automatic Start
TASK 71-00-00-710-003-B	Engine Automatic Start
TASK 71-00-00-710-018-A	Discontinued Start, Restart and Shutdown Procedures
TASK 71-00-00-710-028-A	Engine Shutdown
TASK 71-00-00-710-028-B	Engine Shutdown
TASK 71-00-00-710-043-A	Normal Engine Automatic-Start Procedure
TASK 71-13-00-010-010-A	Opening of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 71-13-00-010-040-A	Opening of the Fan Cowl Doors
TASK 71-13-00-010-040-B	Opening of the Fan Cowl Doors
TASK 71-13-00-410-010-A	Closing of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 71-13-00-410-040-A	Closing of the Fan Cowl Doors
TASK 71-13-00-410-040-B	Closing of the Fan Cowl Doors
TASK 78-32-00-010-010-A	Opening of the Thrust Reverser Halves
TASK 78-32-00-410-010-A	Closing of the Thrust Reverser Halves
TASK 78-36-00-010-040-A	Opening of the Thrust Reverser Doors
TASK 78-36-00-010-040-B	Opening of the Thrust Reverser Doors
TASK 78-36-00-410-040-A	Closing of the Thrust Reverser Doors
TASK 78-36-00-410-040-B	Closing of the Thrust Reverser Doors

3. Job Set-up
Subtask 36-11-00-941-122-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) Make sure that the engine 1 shut down occurred not less than 5 minutes before you do this procedure.
(2) Put a WARNING NOTICE(S) on the panel 115VU to tell persons not to start the engine 1.
(3) In the cockpit:

put WARNING NOTICE(S) to tell persons not to operate the pneumatic system,
put WARNING NOTICE(S) to tell persons not to operate the slats.

(4) On the ENG section of the maintenance panel 50VU:

make sure that the ON legend of the ENG/FADEC GND PWR 2 pushbutton switch is off,
put a WARNING NOTICE(S) to tell persons not to operate the FADEC 2.

Subtask 36-11-00-865-088-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
122VU	AIR BLEED/ENG 2/CTL	3HA2	Z23
122VU	AIR BLEED/ENG 2/MONG	2HA2	Z22
122VU	AIR BLEED/X FEED VALVE/NORM	1HV	Z20

Subtask 36-11-00-010-141-A ** ON A/C NOT FOR ALL

C. Get Access
(1) Put an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position under the zone 192.
(2) Put an ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position under the zone 521.
(3) Open the access doors of the air conditioning units 192FB.
(4) Remove the access panels on the wings and belly fairings:
(a) For the right wing and belly fairing:

(5) Remove these access panels on the pylon:
(a) FOR [1000EM1] (ENGINE-1)
413CL 414CR 413DL 414FR.
(6) Open the left fan cowl door (Ref. AMM TASK 71-13-00-010-040).
(a) FOR [1000EM1] (ENGINE-1)
437AL.
(7) Open the left thrust-reverser cowl door (Ref. AMM TASK 78-36-00-010-040):
(a) FOR [1000EM1] (ENGINE-1)
451AL.

Subtask 36-11-00-010-141-C ** ON A/C NOT FOR ALL

(5) Remove these access panels on the pylon:
(a) FOR [1000EM1] (ENGINE-1)
413CL 414CR 413DL 414FR.
(6) Open the left fan cowl door (Ref. AMM TASK 71-13-00-010-040).
(a) FOR [1000EM1] (ENGINE-1)
451AL.
(7) Open the left thrust-reverser cowl door (Ref. AMM TASK 78-36-00-010-040):
(a) FOR [1000EM1] (ENGINE-1)
451AL.

Subtask 36-11-00-010-141-D ** ON A/C NOT FOR ALL

(5) Remove these access panels on the pylon:
(a) FOR [1000EM1] (ENGINE-1)
413CL 414CR 413DL 414FR.
(6) Open the left fan cowl door (Ref. AMM TASK 71-13-00-010-010).
(a) FOR [1000EM1] (ENGINE-1)
437AL.
(7) Open the left thrust-reverser cowl door (Ref. AMM TASK 78-32-00-010-010).
(a) FOR [1000EM1] (ENGINE-1)
451AL.

Subtask 36-11-00-860-083-A ** ON A/C NOT FOR ALL

D. Aircraft Maintenance Configuration
(1) Do the EIS start procedure (ECAM system only) (Ref. AMM TASK 31-60-00-860-001).
(2) In the air conditioning compartment:

disconnect the pressurization interconnection line of the water tank, hydraulic reservoir and trim air valve from the pressure service check valves (7272HM and 7270HM).

(3) Put PLUG - BLANKING on the disconnected line ends.
(4) On the ECAM control panel 11VU:

push the BLEED pushbutton switch (the BLEED page comes into view on the lower ECAM display unit).

(5) On the AIR COND panel 30VU, make sure that:

the PACK1 and PACK2 pushbutton switches are released (the OFF legends are on),
the X BLEED selector switch is set to AUTO (the BLEED page shows that the X BLEED valve is closed),
the ENG2 BLEED pushbutton switch is released (the ON legend is off) (the BLEED page shows that the ENG2 BLEED valve is closed).

(6) On the ANTI-ICE section of the panel 25VU:

make sure that the ANTI-ICE/WING pushbutton switch is released (the ON legend is off).

4. Procedure
Subtask 36-11-00-720-090-A ** ON A/C NOT FOR ALL

A. Functional Test of the Engine Bleed-Air-Supply System
(1) Start the ENG2 and let it become stable at ground idle (Ref. AMM TASK 71-00-00-710-003).
(2) On the AIR COND panel 30VU, push the ENG2 BLEED pushbutton switch (the ON legend is on) to pressurize the bleed duct system.
(3) Set the XBLEED selector switch to OPEN.
(a) The BLEED page shows that the XBLEED valve is open.
(4) Do the leak test of all the air ducts in the LH wing (Ref. AMM TASK 36-22-00-790-001).
(5) Stop the ENG2 (Ref. AMM TASK 71-00-00-710-028).

Subtask 36-11-00-720-090-C ** ON A/C NOT FOR ALL

Subtask 36-11-00-720-090-D ** ON A/C NOT FOR ALL

A. Functional Test of the Engine Bleed-Air-Supply System
(1) Start the ENG2 and let it become stable at ground idle (Ref. AMM TASK 71-00-00-710-043).
(2) On the AIR COND panel 30VU, push the ENG2 BLEED pushbutton switch (the ON legend is on) to pressurize the bleed duct system.
(3) Set the XBLEED selector switch to OPEN.
(a) The BLEED page shows that the XBLEED valve is open.
(4) Do the leak test of all the air ducts in the LH wing (Ref. AMM TASK 36-22-00-790-001).
(5) Stop the ENG2 (Ref. AMM TASK 71-00-00-710-018).

5. Close-up
Subtask 36-11-00-860-084-A ** ON A/C NOT FOR ALL

A. Put the aircraft back to its initial configuration.
(1) On the AIR COND panel 30VU, release the ENG2 BLEED pushbutton switch (the ON legend is off)
(2) On the ECAM control panel, set the UPPER DISPLAY and LOWER DISPLAY potentiometers to OFF.
(3) In the air conditioning compartment:

remove the PLUG - BLANKING from the line ends.

(4) Connect the pressurization interconnection lines of the water tank, hydraulic reservoir and trim air valve to the pressure service check valves (7272HM and 7270HM).
(5) Make sure that the work area is clean and clear of tools and other items.
(6) Close the access doors of the air conditioning units 192FB.

Subtask 36-11-00-410-134-A ** ON A/C NOT FOR ALL

B. Close Access
(1) Close the left thrust-reverse cowl door (Ref. AMM TASK 78-36-00-410-040).
(a) FOR [1000EM1] (ENGINE-1)
451AL.
(2) Close the left fan cowl door (Ref. AMM TASK 71-13-00-410-040).
(a) FOR [1000EM1] (ENGINE-1)
437AL.
(3) Install these access panels on the pylon:
(a) FOR [1000EM1] (ENGINE-1)
413CL 414CR 413DL 414FR.
(4) Install the access panels under the leading edge of the wing and belly fairing:
(a) For the left wing and belly fairing:

(5) Close the acess door of the air conditioning units 192FB.
(6) Remove the WARNING NOTICE(S).
(7) Remove the access platform(s).

Subtask 36-11-00-410-134-C ** ON A/C NOT FOR ALL

(5) Close the access doors of the air conditioning units 192FB.
(6) Remove the WARNING NOTICE(S).
(7) Remove the access platform(s).

Subtask 36-11-00-410-134-D ** ON A/C NOT FOR ALL

B. Close Access
(1) Close the left thrust-reverse cowl door (Ref. AMM TASK 78-32-00-410-010).
(a) FOR [1000EM1] (ENGINE-1)
451AL.
(2) Close the left fan cowl door (Ref. AMM TASK 71-13-00-410-010).
(a) FOR [1000EM1] (ENGINE-1)
437AL.
(3) Install these access panels on the pylon:
(a) FOR [1000EM1] (ENGINE-1)
413CL 414CR 413DL 414FR.
(4) Install the access panels under the leading edge of the wing and belly fairing:
(a) For the left wing and belly fairing:

(5) Close the access doors of the air conditioning units 192FB.
(6) Remove the WARNING NOTICE(S).
(7) Remove the access platform(s).

Subtask 36-11-00-862-104-A ** ON A/C NOT FOR ALL

C. De-energize the aircraft electrical circuits

[Rev.10 from 2021] 2026.04.01 01:07:22 UTC