# SDR UIEA2017092401807

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 24, 2017
- Submitted: September 25, 2017
- Operation: Air carrier
- Aircraft: [N1321A](https://openairdocs.org/aircraft/N1321A), registered now
- Make and model: Boeing 767306
- Aircraft serial: 27957
- Aircraft time: 80,987 hours, 18,612 cycles
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Valve
- Part number: 97980612
- Part serial: 1487C
- Condition: Failed
- Location: Apu
- Stage of operation: TX
- 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/UIEA2017092401807

## Discrepancy

APU SHUTDOWN WHEN PACK SELECTED.  REMOVED AND REPLACED APU SURGE VALVE IAW AMM 49-53-01. OPS CHECKED NORMAL.

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