APU Leak

TASK 36-12-00-810-807-A
APU Leak

1. Possible Causes

duct
muffers

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 36-11-00-740-802	BITE Test of the Engine Bleed Air System (EBAS) (System Test)

3. Fault Confirmation
Subtask 36-12-00-740-052-A ** ON A/C NOT FOR ALL

A. Test
(1) Do the BITE test AMM 36-11-00-740-802.

4. Fault Isolation
Subtask 36-12-00-810-062-A ** ON A/C NOT FOR ALL

A. If the fault is identified by the maintenance message APU LEAK:
(1) Do a check of the ducts and muffers of the APU bleed ducts.
(a) If you find damage on the ducts:

Repair or replace the duct .

(b) If you find damage on the muffers:

Repair or replace the muffers .

(2) Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:40:33 UTC