SDR UALA2009012800306

Service difficulty report · Bearing · Boeing 777222

Difficulty date: January 28, 2009
Submitted: January 30, 2009
Operation: Air carrier
Aircraft: N799UA
Make and model: Boeing 777222
Aircraft serial: 26926
Aircraft time: 47,647 hours, 7,043 cycles
Engine: Pwa PW40903
System (JASC): 7120 · Engine Mount Section
Part: Bearing
Condition: Migrated
Location: Nr 2 Eng Mount
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

NR 2 ENGINE AFT MOUNT CENTER LINK ASSY, MIDDLE BEARING IS MIGRATING. NR 2 ENGINE REMOVED FOR REPLACEMENT OF AFT LOWER ENGINE MOUNT. ENGINE TO BE REINSTALLED AFTER MOUNT REPLACEMENT. FOUND INBOARD AFT FLANGE BUSHING SCORED AND PITTED ON ENG SIDE OF MOUNT, REPAIR AS NECESSARY. ALSO FOUND CENTER AFT FLANGE BUSHING SCORED AND PITTED ON ENG SIDE OF MOUNT, REPAIR AS NECESSARY. ALSO FOUND CENTER AFT FLANGE BUSHING SCORED AND PITTED ON ENG SIDE OF MOUNT, REPAIR AS NECESSARY. ENGINE REPLACED WITH S/N 222139.