What was found
OXY MASK DEFECTIVE - 1ST OBS. LEFT OBSERVERS MASK APPEARS TO HAVE CORROSION WHERE HOSE CONNECTS TO MASK. REPLACED O2 MASK PER MM, OPS CHECKED GOOD.
- Difficulty date
- April 9, 2011
- Submitted
- April 20, 2011
- Operation
- Air carrier
- Aircraft
- N118UA
- Make and model
- Boeing 747422
- Aircraft serial
- 28811
- Aircraft time
- 48,741 hours, 5,928 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 3510 · Crew Oxygen System
- Part
- Oxygen Mask
- Part number
- MC1019151
- Part serial
- 789
- Condition
- Corroded
- Location
- Cockpit
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.