# SDR UALA2009122804028

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 24, 2009
- Submitted: December 31, 2009
- Operation: Air carrier
- Aircraft: [N672UA](https://openairdocs.org/aircraft/N672UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 30027
- Aircraft time: 36,421 hours, 9,655 cycles
- Engine: Pwa PW4056
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Isolation Valve
- Part number: 2780539107
- Part serial: 34
- Condition: Faulty
- Location: Left
- Stage of operation: NR
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2009122804028

## Discrepancy

LEFT ISOLATION VALVE FAULT. ISOLATION VALVE FOUND FAULTY. REPLACED LT ISOLATION VALVE, OPS CHECK GOOD.

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