Air Leak in the Left Wing

TASK 36-22-00-810-801-A
Air Leak in the Left Wing

1. Possible Causes

ducts
seal

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 36-11-00-720-004	Leak Check of Engine Bleed Air Supply System and Packs Components through HPGC
AMM 36-11-00-720-005	Leak Check of Engine Bleed Air Supply System and Packs Components with APU Bleed Air
AMM 36-11-17-000-001	Removal of the Heat-Exchanger Outlet-Temperature Sensor
AMM 36-11-17-400-001	Installation of the Heat-Exchanger Outlet-Temperature Sensor

3. Fault Confirmation
Subtask 36-22-00-720-050-A ** ON A/C NOT FOR ALL

A. Test
(1) Do the functional test of the engine bleed-air supply-system AMM 36-11-00-720-004 or AMM 36-11-00-720-005.

NOTE: On ground, hot weather conditions can cause overheating to be detected around the bleed ducts in the wings, it can show "AIR L(R) WING LEAK" warnings. Such warnings can be prevented during transit by keeping the slats in Configuration 1 when the OAT is above 30 Deg C.

4. Fault Isolation
Subtask 36-22-00-810-050-A ** ON A/C NOT FOR ALL

A. Make sure that the leak is on the same side of the leak warning.
(1) Repair the ducts which cause the leak.

NOTE: If the L WING LEAK ECAM warning comes into view on ground and if:
- the packs are in operation
- there is high OAT
- you replaced the flow control valve (8HB)
first do a check of the pack area or of the seals at the flow control valve.

(a) If no leak is found on the wing ducts:

open the access door 471AL on the pylon
remove the engine 1 exchanger outlet temperature sensor (6HA1) AMM 36-11-17-000-001
make sure that the seal of the engine 1 exchanger outlet temperature sensor (6HA1) is not damaged. Replace the seal if necessary
install the engine 1 exchanger outlet temperature sensor (6HA1) AMM 36-11-17-400-001
close the access door 471AL.

Subtask 36-22-00-700-050-A ** ON A/C NOT FOR ALL

B. After the subsequent flight, make sure that the fault does not continue.

[Rev.8 from Aug 2018] 2026.04.04 04:34:02 UTC