Service difficulty report · Seal · Boeing 777222

Difficulty date
April 5, 2011
Submitted
April 11, 2011
Operation
Air carrier
Aircraft
N797UA
Make and model
Boeing 777222
Aircraft serial
26924
Aircraft time
58,114 hours, 8,313 cycles
Engine
Pwa PW40903
Part
Seal
Part number
315W35514
Condition
Damaged
Location
Thrust Reverser
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

ON WALK AROUND SECTION OF DAMAGED SEAL, LESS THAN 10 PERCENT. REMAINING SEAL SECURE AND RESEALED ENDS WERE DAMAGED REMOVED. PART INF (PCN 120-2870). NIL STOCK IN SYSTEM. LOOKED FOR SEAL MATCH AT SMB NOTHING FOUND NEED 120-2870. MF7133 CREATED TO MONITOR. UPON REINSPECTION FOUND DAMAGE HAS PROGRESSED TO APPROX. 25 PERCENT OF SEAL IS NOW MISSING OR DAMAGED. 120-2870 ISSUED TO SFOJB. REMOVED REV SLEEVE FOR ACCESS. REPLACED RT SLEEVE BULB SEAL PER MM.