Service difficulty report · Fan · Boeing 777222

Difficulty date
September 15, 1999
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N784UA
Make and model
Boeing 777222
Aircraft serial
26951
Engine
Pwa PW4090
Part
Fan
Part number
4100943B
Condition
Failed
Location
Cabin
Part time
11,531 hours
Stage of operation
CR
Nature of condition
B
Precautionary procedure
A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

FLIGHT ATTENDANT REPORTED THAT THERE WAS A STRONG ELECTRIC SMELL IN THE AFT CABIN. AN AMBER ALERT WAS DECLARED AND THE FLIGHT DIVERTED INTO MIA MAKING A NORMAL LANDING. *S/D* FOUND THE RIGHT LOWER AIR RECIRCULATION FAN FAILED. FAN WAS REPLACED. SHOP FINDINGS REVEALED THAT RECIRCULATION FAN HAD FAILED BEARINGS WHICH HAS CAUSED ITS MOTOR TO OVERHEAT.