What was found
OXYGEN MASK DEFECTIVE AT3.(1=CAPT,2=1ST OFF,3=1ST OBS). CREW COMMENTS: F/O'S O2 MASK VERY HARD TO HEAR. SWITCHED WITH OBS MASK, NO HELP. BOTH TESTED OKAY IN OBS POSITION. REPLACED OXYGEN MASK PER AMM.
- Difficulty date
- December 5, 2011
- Submitted
- December 8, 2011
- Operation
- Air carrier
- Aircraft
- N598UA
- Make and model
- Boeing 757222
- Aircraft serial
- 28751
- Aircraft time
- 50,668 hours, 14,200 cycles
- Engine
- Pwa PW2037
- System (JASC)
- 3510 · Crew Oxygen System
- Part
- Oxygen Mask
- Condition
- Defective
- Location
- Cockpit
- Stage of operation
- NR
- 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.