What was found
UNABLE TO TRANSMIT FROM CAPTS HEADSET. HAND MIC IS OK. REPLACED O2 BOX. OPERATION RETURNED TO NORMAL.
- Difficulty date
- October 10, 2011
- Submitted
- October 13, 2011
- Operation
- Air carrier
- Aircraft
- N178UA
- Make and model
- Boeing 747422
- Aircraft serial
- 24385
- Aircraft time
- 88,101 hours, 10,690 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 3510 · Crew Oxygen System
- Part
- Stowage Box
- Condition
- Defective
- Location
- Cockpit
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.