# SDR UALA2010030100739

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 1, 2010
- Submitted: March 8, 2010
- Operation: Air carrier
- Aircraft: [N671UA](https://openairdocs.org/aircraft/N671UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 30026
- Aircraft time: 38,135 hours, 10,086 cycles
- Engine: Pwa PW4056
- System (JASC): [7532 · Compressor Bleed Valve](https://openairdocs.org/jasc/7532)
- Part: Bleed Valve
- Part number: S210T120115
- Part serial: 31
- Condition: Fluctuates
- Location: Rt Engine
- Stage of operation: DE
- 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/UALA2010030100739

## Discrepancy

RIGHT PNEUMATIC PRESS FLUCTUATES FROM 10 TO 30 PSI WHEN POWER REDUCED FOR DESCENT. REPLACED FAULTY NR 2 ENG FAN AIR MODULATING VALVE. OP CHECK AND LEAK CHECK GOOD. BITE CHECK OF AIR SUPPLY MODULE CHECK GOOD.

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