Service difficulty report · Tube · Boeing 777222

Difficulty date
July 11, 2010
Submitted
July 12, 2010
Operation
Air carrier
Aircraft
N219UA
Make and model
Boeing 777222
Aircraft serial
30551
Aircraft time
39,522 hours, 4,880 cycles
Engine
Pwa PW40903
Engine time
51,191 hours, 7,042 cycles
Part
Tube
Condition
Blocked
Location
Nr 1 Engine
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

ENG NR 1, NR 3 BEARING WEEP TUBE IS BLOCKED. UNABLE TO CLEAR WEEP TUBE. UNABLE TO CLEAR WEEP TUBE. ACCOMPLISHED BOROSCOPE INSPECTION OF HPT FOR PRESENCE OF OIL USING ALTERNATE METHOD. NO OIL WAS FOUND ON HPT HUB. DUE TO AFT LOWER ENGINE MOUNT BUSHING MIGRATION, NEED TO GAIN ACCESS TO ENG MOUNT FOR ESN 222178 FROM POS 02 PYLON. REMOVED ESN 222178 FROM POS 02 PYLON PER TOD AMM FOR ACCESS TO ENG MOUNT. NR 2 ENG AFT LOWER ENG MOUNT, CENTER LINK ASSEMBLY, CENTER BOLT, BUSHING MIGRATING AFT 3-8 INCH. REPLACED ESN 222178 AFT LWR ENG MOUNT PER AMM. SVCBL PCN 223-1351 P-N 310W3030-2 S-N 77016 INSTALLED AND S-N 0198 REMOVED.