# SDR UALA2010040901194

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 8, 2010
- Submitted: April 9, 2010
- Operation: Air carrier
- Aircraft: [N664UA](https://openairdocs.org/aircraft/N664UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 29236
- Aircraft time: 41,366 hours, 11,478 cycles
- Engine: Pwa PW4056
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Shutoff Valve
- Part number: 7732887810
- Part serial: 87
- Condition: Faulty
- Location: Bleed Air Sys
- Stage of operation: AP
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2010040901194

## Discrepancy

SHORT FINAL HAD RT PACK OFF THEN RT ENGINE BLEED ON TAXI IN.  REPLACED PRSOV AND OPS CHECK NORMAL ON ENGINE RUN.  HAD R-ENG PRSOV FAULT ON SYS BITE BOX 2X AFTER CLEARING, R-ENG PRSOV WOULD NOT OPEN.  REPLACED R-PRSOV, CHECKED OK ON ENG RUN.

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