Service difficulty report · Engine · Boeing 777222

Difficulty date
August 8, 2010
Submitted
August 9, 2010
Operation
Air carrier
Aircraft
N794UA
Make and model
Boeing 777222
Aircraft serial
26953
Aircraft time
56,336 hours, 8,201 cycles
Engine
Pwa PW40903
Part
Engine
Condition
Oil Consumption
Location
Nr 1
Stage of operation
NR
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

NR 1 ENG OIL CONSUMPTION EXCEEDS LIMIT. ACP MAG CHIP DETECTOR INSPECTION PER MM, NO FAULTS NOTED. ACP VISUAL INSP OF ENG EXHAUST, INLET, FAN EXIT & OVERBOARD BREATHER DISCHARGE AREAS EXTERNAL PLUMBING & MAIN GEARBOX FOR LEAKS, NONE FOUND. DRAINED GEARBOX, NO EXCESSIVE OIL FOUND. PER ENG DESK ACCOMPLISHED HIGH PWR CONSUMPTION RUN AT 1.25 EPR FOR 10 MINS, WITH DRAIN INSPECTION TUBES BAGGED, NO LEAKS NOTED AFTER RUN. DUE OIL CONSUMPTION EXCEEDED 0.5 QTS-HR ACCOMPLISHED NR 3 BEARING OIL WEEP TUBE INSPECTION PER MM, ALL CHECKS NORMAL.