What was found
CAPTAIN'S OXYGEN MASK WILL NOT TEST. REPLACED OXYGEN MASK PER 35-11-18-0401, 35-11-00 PG 506.
- Difficulty date
- October 19, 2011
- Submitted
- November 4, 2011
- Operation
- Air carrier
- Aircraft
- N171UA
- Make and model
- Boeing 747422
- Aircraft serial
- 24322
- Aircraft time
- 83,459 hours, 9,948 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 3510 · Crew Oxygen System
- Part
- Oxygen Mask
- Part number
- MC1019151
- Part serial
- 691
- Condition
- No Test
- Location
- Cockpit
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- L
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.