SDR UIEA2012071500323

Service difficulty report · Circuit Breaker · Boeing 767231

Difficulty date: July 15, 2012
Submitted: July 16, 2012
Operation: Air carrier
Aircraft: N651GT
Make and model: Boeing 767231
Aircraft serial: 22570
Aircraft time: 80,806 hours, 21,118 cycles
System (JASC): 2450 · AC Power Distribution System
Part: Circuit Breaker
Part number: 675231125
Condition: Failed
Location: Lt Ac Buss
Stage of operation: CL
How discovered: O
Nature of condition: G, H, J
Precautionary procedure: H, A

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

What was found

LEFT AC BUSS OFF- COMPLIED WITH QRH AND RETURNED TO DEPARTURE. (R & R RELAY K863) (LEFT TRANSFER BUSS RELAY), AND "A" PHASE CIRCUIT BREAKER UNIT C313, BOTH OPS CHECKED GOOD, ENGINE RUN ALSO OPS CHECKED GOOD. FAULT CLEARED, IAW AMM 24-25-00, AND 24-51-11, 24-22-00).