SDR UALA2010052701835

Service difficulty report · Gcu · Boeing 767322

Difficulty date: May 26, 2010
Submitted: June 11, 2010
Operation: Air carrier
Aircraft: N643UA
Make and model: Boeing 767322
Aircraft serial: 25093
Aircraft time: 82,436 hours, 13,203 cycles
Engine: Pwa PW4060
System (JASC): 2421 · AC Generator-Alternator
Part: Gcu
Part number: M734284DF
Part serial: 1209
Condition: Faulty
Location: Position 2
Stage of operation: NR
How discovered: O
Nature of condition: J
Precautionary procedure: O

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

What was found

EICAS MSG R GEN OFF DISPLAYED. GEN OFF & FIELD OFF LGTS'S ILLUM & FAILED TO RESET. SAMC TEXT: THIS IS THE SECOND HIT ON THIS GEN SYS,FIX OR DF IAW MEL. THX, SAMC MO. REPLACED RT GCU, SERVICED IDG, RAN ENGINE, CYCLED GENERATORS ALL TEST PASSED.