# SDR 2007UALA05199

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 21, 2007
- Submitted: December 21, 2007
- Operation: Air carrier
- Aircraft: [N213UA](https://openairdocs.org/aircraft/N213UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30219
- Aircraft time: 26,269 hours, 5,966 cycles
- Engine: Pwa PW4077
- Engine time: 25,044 hours, 5,659 cycles
- System (JASC): [2424 · AC Regulator](https://openairdocs.org/jasc/2424)
- Part: Gcu
- Condition: Burned
- Location: Right
- Stage of operation: CR
- How discovered: O
- Nature of condition: G
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2007UALA05199

## Discrepancy

RTFL DUE TO A RT ENGINE GENERATOR PROBLEM.   AFTER TROUBLESHOOTING,FOUND RT GCU CIRCUIT BREAKER OPEN & GEN CONTROL UNIT BURNED INSIDE. REPLACED GCU AND OPS CHECKED GOOD. OPENED UP GCU MR24241-13 AND VERIFIED A UNIT INTERNAL FAILURE WITH BURNED CIRCUIT BOARD.  CONDUCTED VERIFICATION FLT & FLT CREW FOUND RT ELECTRICAL SYSTEM GOOD.


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