# SDR 2008UALA03359

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 11, 2008
- Submitted: July 15, 2008
- Operation: Air carrier
- Aircraft: [N657UA](https://openairdocs.org/aircraft/N657UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 27112
- Aircraft time: 66,885 hours, 10,911 cycles
- Engine: Pwa PW4060
- System (JASC): [3600 · Pneumatic System](https://openairdocs.org/jasc/3600)
- Part: Shutoff Valve
- Part number: 7732887810
- Part serial: UNK
- Condition: Faulty
- Location: Nr 1 Engine
- Stage of operation: IN
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2008UALA03359

## Discrepancy

NR 1 ENG PRSOV FAILED HEALTH CHECK REFERENCE PRESSURE LOW.  *S/D*  DURING HEALTH CHECK FOUND PRESSURE REGULATING SHUT OFF VALVE FAULTY.  REPLACED PRSOV.  AC OK FOR SERVICE.

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