Service difficulty report · Gasket · Boeing 777222

Difficulty date
November 11, 2012
Submitted
December 13, 2012
Operation
Air carrier
Aircraft
N212UA
Make and model
Boeing 777222
Aircraft serial
30218
Aircraft time
44,918 hours, 9,663 cycles
Engine
Pwa PW4077
Part
Gasket
Condition
Leaking
Location
Nr 2 Engine
Stage of operation
IN
How discovered
O
Nature of condition
K
Precautionary procedure
O

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

What was found

UPON ARRIVAL AT ORD 200-09NOV EVIDENCE OF OIL LEAK NR 2 ENGINE, HISTORY. SAMC TEXT: PERFORM ENGINE CHECK NR 7-OIL LEAKS PER FIM TASK 71-08 TASK 819 TO IDENTIFY SOURCE OF LEAK. OPBLM-EMC :EVIDENCE OF WETTING AT 1 O'CLOCK TO 6 O'CLOCK INTERMEDIATE CASE AREA. COULD NOT IDENTIFY CAUSE. CLEANED ALL WETTING AND ACCOMPLISHED 15 MIN HIGH POWER RUN, MORE WETTING IN SAME AREA BUT UNABLE TO FIND SOURCE OF WETTING. FOUND OIL LEAKING FROM NR 1 BEARING BREATHER TUBE JUST FWD AND ABOVE OF 2.5 BLEED ACTUATOR. REPLACED GASKET. RAN ENGINE, NO LEAKS FOUND.