Service difficulty report · Fan · Boeing 747451

Difficulty date
December 2, 2010
Submitted
December 6, 2010
Operation
Air carrier
Aircraft
N105UA
Make and model
Boeing 747451
Aircraft serial
26473
Aircraft time
67,229 hours, 8,027 cycles
Engine
Pwa PW4056
Part
Fan
Part number
732591F
Part serial
2750
Condition
Faulty
Location
Cabin
Stage of operation
CR
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.

What was found

ACFT EXPERIENCED SMOKE IN COCKPIT. SECURED EQUIP COOLING FANS. ODOR SEEMED TO SUBSIDE. REPLACED EQUIP COOLING EXHAUST VALVE DUE TO BURNING ODOR IN COCKPIT. TEST PASSED WITH NO MSGS. ALSO GALLEY FAN STATUS MSGS. SYS NORMAL WITH NO ODOR.