# SDR UALA2008122206925

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 18, 2008
- Submitted: December 23, 2008
- Operation: Air carrier
- Aircraft: N596UA
- Make and model: Boeing 757222
- Aircraft serial: 28749
- Aircraft time: 43,090 hours, 11,942 cycles
- Engine: Pwa PW2037
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Control Unit
- Part number: 520854
- Condition: No Test
- Location: Hmg
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2008122206925

## Discrepancy

HMG DOES NOT TEST.  REPLACED HYDRAULIC MOTOR GENERATOR CONTROL UNIT.  OP CHECKS OKAY.

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