SDR UALA2010110304094

Service difficulty report · Tube · Boeing 777222

Difficulty date: November 3, 2010
Submitted: November 5, 2010
Operation: Air carrier
Aircraft: N797UA
Make and model: Boeing 777222
Aircraft serial: 26924
Aircraft time: 56,758 hours, 8,149 cycles
Engine: Pwa PW4090
Engine time: 52,019 hours, 7,338 cycles
System (JASC): 7210 · Turbine Engine Reduction Gear
Part: Tube
Condition: Leaking
Location: Nr 2 Engine
Stage of operation: NR
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

NR 2 ENG HOC. OPENED ENGINE, OIL LEAKAGE CKD. FOUND THE MAIN GEARBOX OIL PRESSURE TUBE LOCKPLATE LOOSENED, RETIGHTENED BOLTS AND TUBE CKD OK. RAN ENGINE, NO LEAKAGE FOUND. CKD OIL QUANTITY BY EICAS, SHOWS NORMAL. TUBE ASSY REF IPC 79-21. BOLT REF IPC. RAN ENGINE, REF JRH 2-2-1.