# SDR UALA2011020200563

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 1, 2011
- Submitted: February 3, 2011
- Operation: Air carrier
- Aircraft: [N672UA](https://openairdocs.org/aircraft/N672UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 30027
- Aircraft time: 40,747 hours, 10,712 cycles
- Engine: Pwa PW4056
- System (JASC): [4920 · APU Core Engine](https://openairdocs.org/jasc/4920)
- Part: Engine
- Condition: Shutdown
- Location: Apu
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2011020200563

## Discrepancy

APU STOPPED RUNNING.  APU AUTOSHUTDOWN, COULD NOT START.  ACP BITE TEST. PASSED, OPS CK APU SEVERAL TIMES, WITH AIR DEMAND, NO DIFFERENCE, OPS CHECKED GOOD.

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