What was found
CAPTAIN'S OXYGEN MASK STICKS IN TEST POSITION AND DOES NOT STOP FLOWING. REPLACED O2 MASK, CHECKED OKAY.
- Difficulty date
- October 23, 2011
- Submitted
- October 27, 2011
- Operation
- Air carrier
- Aircraft
- N127UA
- Make and model
- Boeing 747422
- Aircraft serial
- 28813
- Aircraft time
- 49,122 hours, 5,820 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 3510 · Crew Oxygen System
- Part
- Oxygen Mask
- Part number
- MC1019151
- Part serial
- 48
- Condition
- Faulty
- Location
- Cockpit
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.