What was found
CABIN REPORTED BURN ODOR THROUGHOUT CABIN. TURNED OFF UPPER RECIRC FAN. RAN UPPER RECIRC FANS AND LOWER RECIRC FANS AND TESTED WIRING VIA CMC. FOUND NO FAULTS AND ALL OP NORMAL. NO BURN ODOR THROUGHOUT CABIN PRESENT.
- Difficulty date
- August 15, 2011
- Submitted
- September 2, 2011
- Operation
- Air carrier
- Aircraft
- N199UA
- Make and model
- Boeing 747422
- Aircraft serial
- 28717
- Aircraft time
- 56,625 hours, 6,705 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 2120 · Air Distribution System
- Part
- Unknown
- Condition
- Odor
- Location
- Cabin
- Stage of operation
- IN
- How discovered
- O
- Nature of condition
- B
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.