Service difficulty report · Bearing · Boeing 777222

Difficulty date
February 4, 2008
Submitted
February 5, 2008
Operation
Air carrier
Aircraft
N772UA
Make and model
Boeing 777222
Aircraft serial
26930
Aircraft time
49,153 hours, 9,334 cycles
Engine
Pwa PW4077
Part
Bearing
Condition
Failed
Location
Rt Mlg
Stage of operation
TX
How discovered
O
Nature of condition
A
Precautionary procedure
O

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

What was found

RECEIVED A REPORT OF A FIRE IN VICINITY OF RT MAIN GEAR FROM CDG TOWER. ACFT DEPLANED IN TAXIWAY (ALL EIGHT SLIDES). NR 4 MLG (RT GEAR RT FRONT) OUTER WHEEL BEARING FAILED. NR 4 MLG (RT GEAR, RT FRONT) OUTER WHEEL BEARING FAILED. RT GEAR FWD AXLE IS HEAT DAMAGED AND CRACKED ON WHEEL NUT THREAD PORTION. REPLACED AXLE ASSY.