Service difficulty report · Sensor · Boeing 777222

Difficulty date
August 6, 2007
Submitted
August 17, 2007
Operation
Air carrier
Aircraft
N785UA
Make and model
Boeing 777222
Aircraft serial
26954
Aircraft time
45,387 hours, 6,872 cycles
Engine
Pwa PW4090
Part
Sensor
Condition
Leaking
Location
Oil Pressure
Stage of operation
NR
How discovered
O
Nature of condition
K, B, J
Precautionary procedure
O

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

What was found

FOUND OIL LEAKING FROM COVER PLATE ABOVE OIL PRESSURE SENSOR AT APU LUBE CLUSTER, ALSO FOUND OIL LEAKING FROM GENERATOR FEEDER CABLES. FOUND GENERATOR SOAKED WITH OIL AND GENERATOR FEEDER CABLES ARCING AND BURNED. APU WAS FOUND LOW ON OIL. 08-31-07 REPLACED APU GENERATOR PER MM 24-21-01, REPLACED LUBE PRESSURE SENSOR O-RING, REPLACED BURNED GENERATOR FEEDER CABLE. OP CK OK, NO LEAKS NOTED.