What was found
UPPER RECIRCULATION FAN-L WIRING FAIL, MSG 21104.
- Difficulty date
- December 13, 2011
- Submitted
- December 16, 2011
- Operation
- Air carrier
- Aircraft
- N120UA
- Make and model
- Boeing 747422
- Aircraft serial
- 29166
- Aircraft time
- 52,157 hours, 6,147 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 2197 · Air Conditioning System Wiring
- Part
- Wire
- Condition
- Failed
- Location
- Recirc Fan
- 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.