What was found
AIRCRAFT RETURNED TO SFO AFTER BOTH UTILITY BUS OFF LIGHTS CAME ON DURING TAKEOFF. *S/D* LEFT GENERATOR CONTROL BREAKER AUXILIARY CONTACT FAILED. REPLACED LEFT AND RIGHT GENERATOR CONTROL BREAKERS.
- Difficulty date
- April 27, 1997
- Submitted
- March 26, 2000
- Operation
- Air carrier
- Aircraft
- N663UA
- Make and model
- Boeing 767322
- Aircraft serial
- 27160
- Engine
- Pwa PW4060
- System (JASC)
- 2424 · AC Regulator
- Part
- Circuit Breaker
- Part number
- B4301
- Condition
- Failed
- Location
- Lt/Rt Gcu
- Component
- AUXCONTACT
- Stage of operation
- TO
- Nature of condition
- J
- Precautionary procedure
- D
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.