# SDR UALA2010062102187

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 20, 2010
- Submitted: June 21, 2010
- Operation: Air carrier
- Aircraft: [N773UA](https://openairdocs.org/aircraft/N773UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26929
- Aircraft time: 60,530 hours, 11,989 cycles
- Engine: Pwa PW4077
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Generator
- Part number: 756589A
- Part serial: 591
- Condition: Failed
- Location: Apu
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2010062102187

## Discrepancy

APU ELECTRICAL GEN FAILED.  MAT SHOWS FAULT CODE 242-001-00 WITH A MSG 24-31513 GEN APU EXCITER.  REPLACED APU GENERATOR, OPS CHECK OKAY.

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