Service difficulty report · Fan · Boeing 777222

Difficulty date
September 10, 2010
Submitted
September 15, 2010
Operation
Air carrier
Aircraft
N784UA
Make and model
Boeing 777222
Aircraft serial
26951
Aircraft time
59,579 hours, 8,624 cycles
Engine
Pwa PW4090
Part
Fan
Part number
4100945A
Part serial
853
Condition
Faulty
Location
Recirculation
Stage of operation
NR
How discovered
9
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

MELTING PLASTIC SMELL WAFTS OCCUR FROM BUSINESS CLASS GALLEY OVERHEAD FWD. SPORADIC BURNING ODOR PERSIST, SUSPECT UPPER RECIRCULATION FAN PROBLEM. PREVIOUS HISTORY. IN REF TO BUSINESS GALLEY ODOR UPPER RECIRCULATION FANS HAVE BEEN OFF FOR ABOUT 1.5HRS BUT THE BURNING PLASTIC ODOR IS BACK BUT STILL IN SMALL AMOUNTS. DEACTIVATED FWD UPPER RECIRCULATION FAN. BREAKER PULLED AND COLLARED AT P110 POSITION A21. REPLACED UPPER FWD RECIRCULATION FAN, OPS CHECK GOOD.