No Inflation of the Oxygen Mask Harness

TASK 35-10-00-810-806-A
No Inflation of the Oxygen Mask Harness

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 35-12-41-000-002	Removal of the Full-Face/Quick-Donning Oxygen-Mask
AMM 35-12-41-200-001	Detailed Inspection of Oxygen Masks (out of box) with Harness Inflated
AMM 35-12-41-400-002	Installation of the Full-Face/Quick-donning Oxygen-Mask

3. Fault Confirmation
Subtask 35-10-00-700-052-A

A. Test
(1) Do the visual inspection of the flight crew oxygen mask (out of box) AMM 35-12-41-200-001.

4. Fault Isolation
Subtask 35-10-00-810-055-B

A. If during the visual inspection
(1) The Captain harness inflation is inoperative:

replace the MASK-FULL FACE/Q.D. OXY, CAPT [5759HM] AMM 35-12-41-000-002 and AMM 35-12-41-400-002.

(2) The First Officer harness inflation is inoperative:

replace the MASK-FULL FACE/Q.D. OXY, F/O [5758HM] AMM 35-12-41-000-002 and AMM 35-12-41-400-002.

(3) The Third Occupant harness inflation is inoperative:

replace the MASK-FULL FACE/Q.D. OXY, 3RD OCCPNT [5757HM] AMM 35-12-41-000-002 and AMM 35-12-41-400-002.

(4) The Fourth Occupant harness inflation is inoperative:

replace the MASK-FULL FACE/Q.D. OXY, 4TH OCCPNT [5760HM] AMM 35-12-41-000-002 and AMM 35-12-41-400-002.

[Rev.8 from Aug 2018] 2026.04.04 04:33:35 UTC