What was found
VERY LOUD HOWL FROM AFT EXHAUST FAN OUTFLOW DOOR. ALSO LOUD IN AFT GALLEY. AFT EQ EXHAUST FAN 1 MSG DISPLAYED. REMOVED AND REPLACED NR 1 AFT EQUIPMENT - LAVATORY FAN IAW AMM, NO DEFECTS NOTED.
- Difficulty date
- December 10, 2012
- Submitted
- January 18, 2013
- Operation
- Air carrier
- Aircraft
- N677UA
- Make and model
- Boeing 767322
- Aircraft serial
- 30029
- Aircraft time
- 40,947 hours, 10,107 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 2121 · Air Distribution Fan
- Part
- Fan
- Part number
- 65B480372
- Part serial
- 13410877
- Condition
- Faulty
- Location
- Nr 1
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.