# SDR UALA2008111304772

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 19, 2007
- Submitted: December 19, 2008
- Operation: Air carrier
- Aircraft: N379UA
- Make and model: Boeing 737322
- Aircraft serial: 24654
- Aircraft time: 50,078 hours, 34,469 cycles
- Engine: Cfmint CFM563C1
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Valve
- Part number: 3289562432145525
- Part serial: 1750
- Condition: Malfunctioned
- Location: A/C Pack
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2008111304772

## Discrepancy

DESCENDED TO 24000FT DUE TO SINGLE PACK OPERATION.  REPLACED FAN AIR VALVE AND PRSOV.  SECURED APU PNEUMATIC DUCTS CLAMPS.

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