# SDR UALA2011042101926

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 21, 2011
- Submitted: May 10, 2011
- Operation: Air carrier
- Aircraft: [N668UA](https://openairdocs.org/aircraft/N668UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 30024
- Aircraft time: 43,144 hours, 11,574 cycles
- Engine: Pwa PW4056
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Shutoff Valve
- Part number: 7732887810
- Part serial: 167
- Condition: Faulty
- Location: Bleed Air Sys
- Stage of operation: CL
- 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/UALA2011042101926

## Discrepancy

DUCT PRESS SPLIT DURING CLIMB L 11 PSI R 35 PSI AND DURING CRZ L 15 PSI R 25 PSI.  REPLACED LEFT PRSOV PER MM.  ACP'D ENG RUN PER JRH, BLEED SHIFT NORMAL, NO SPLIT NOTED.

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