# SDR UALA2012090404924

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 2, 2012
- Submitted: September 26, 2012
- Operation: Air carrier
- Aircraft: [N544UA](https://openairdocs.org/aircraft/N544UA), registered now
- Make and model: Boeing 757222
- Aircraft serial: 25322
- Aircraft time: 78,333 hours, 22,572 cycles
- Engine: Pwa PW2037
- System (JASC): [4950 · APU Bleed Air System](https://openairdocs.org/jasc/4950)
- Part: Valve
- Part number: 97980612
- Part serial: 39
- Condition: Failed
- 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/UALA2012090404924

## Discrepancy

APU AUTO SHUTDOWN.  TIGHTEN INLET TEMPERATURE SENSOR IAW AMM 49-6103.  REPLACED APU SURGE VALVE.  OPS CHECK NORMAL, NO LEAKS NOTED.  APU START NORMAL.  NO AUTO SHUT DOWN NOTED.

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