What was found
DOOR 3L O2 MASK MISSING. MASK REPLACED.
- Difficulty date
- October 29, 2012
- Submitted
- December 3, 2012
- Operation
- Air carrier
- Aircraft
- N128UA
- Make and model
- Boeing 747422
- Aircraft serial
- 30023
- Aircraft time
- 50,743 hours, 5,947 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 3500 · Oxygen System
- Part
- Oxygen Mask
- Condition
- Missing
- Location
- L3 Door
- 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.