Service difficulty report · Apu · Boeing 777222

Difficulty date
December 30, 2011
Submitted
January 26, 2012
Operation
Air carrier
Aircraft
N229UA
Make and model
Boeing 777222
Aircraft serial
30557
Aircraft time
41,685 hours, 5,096 cycles
Engine
Pwa PW40903
Part
Apu
Condition
Shutdown
Location
Apu Bay
Stage of operation
TX
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.

What was found

APU AUTO SHUTDOWN. REPLACED OIL CLUSTER-OIL FILTER ELEMENTS. CLEANED CONNECTOR TO OIL TEMP SENSOR AT OIL LUBRICATION CLUSTER AND OIL QUANTITY-SUMP TEMP SENSOR AT OIL TANK. WASHED OUT AIR-OIL COOLER ALSO. SERVICED APU OIL AND ACCOMPLISHED APU OPERATIONAL CHECK.