Deterioration of the Flexible Supply-Hose Assembly

TASK 35-10-00-810-823-A
Deterioration of the Flexible Supply-Hose Assembly

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 35-12-41-000-001	Removal of the Oxygen-Mask Stowage-Box
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 35-12-41-400-001	Installation of the Oxygen-Mask Stowage-Box
AMM 35-12-41-400-002	Installation of the Full-Face/Quick-donning Oxygen-Mask

3. Fault Confirmation
Subtask 35-10-00-710-075-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 35-10-00-810-073-B

A. If during the inspection:
(1) The Captain flexible supply-hose assembly is deteriorated:

replace the STOWAGE BOX-OXY MASK, CAPT [10RN1] AMM 35-12-41-000-001 and AMM 35-12-41-400-001 or 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 flexible supply-hose assembly is deteriorated:

replace the STOWAGE BOX-OXY MASK, F/O [10RN2] AMM 35-12-41-000-001 and AMM 35-12-41-400-001 or 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 flexible supply-hose assembly is deteriorated.

replace the STOWAGE BOX-OXY MASK, 3RD OCCPNT [10RN3] AMM 35-12-41-000-001 and AMM 35-12-41-400-001 or 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 flexible supply-hose assembly is deteriorated:

replace the STOWAGE BOX-OXY MASK, 4TH OCCPNT [5774HM] AMM 35-12-41-000-001 and AMM 35-12-41-400-001 or 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 04:33:38 UTC