# SDR UALA2010101503824

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 14, 2010
- Submitted: October 15, 2010
- Operation: Air carrier
- Aircraft: [N223UA](https://openairdocs.org/aircraft/N223UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30224
- Aircraft time: 38,796 hours, 4,764 cycles
- Engine: Pwa PW4090
- System (JASC): [2425 · AC Indicating System](https://openairdocs.org/jasc/2425)
- Part: Converter
- Part number: 757183F
- Part serial: 52
- Condition: Tripped
- Location: Backup Generator
- Stage of operation: DE
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2010101503824

## Discrepancy

BOTH BACKUP GENS TRIPPED OFF IN DESCENT.  RESET OK.   REPLACED BACKUP GEN FREQ CONVERTER, CK'D OK AND TEST PASSED.

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