What was found
FO'S OXYGEN HARNESS FAILS TO INFLATE (IS LEAKING). SWAPPED FO'S WITH OBSERVER'S MASK, INSTALLED MASK. OBSERVERS SEAT CONSIDERED INOP. RPL'D 1ST OBSERVER'S O2 MASK ASSY.
- Difficulty date
- April 11, 2011
- Submitted
- May 5, 2011
- Operation
- Air carrier
- Aircraft
- N436UA
- Make and model
- Airbus A320232
- Aircraft serial
- 638
- Aircraft time
- 50,099 hours, 18,581 cycles
- Engine
- Iae V2527A5
- System (JASC)
- 3510 · Crew Oxygen System
- Part
- Oxygen Mask
- Part number
- MF20534
- Part serial
- 225
- Condition
- Leaking
- Location
- Cockpit
- Stage of operation
- IN
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.