# SDR UALA2009081102458

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 11, 2009
- Submitted: August 13, 2009
- Operation: Air carrier
- Aircraft: [N221UA](https://openairdocs.org/aircraft/N221UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30552
- Aircraft time: 33,178 hours, 4,240 cycles
- Engine: Pwa PW40903
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Control Valve
- Part number: 8102044
- Part serial: 99
- Condition: Faulty
- Location: A/C Pack Flow
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2009081102458

## Discrepancy

UPPER RT PACK FCV MSG ON STATUS PAGE AND LATCHED ON MAT.  UPPER VALVE LOCKED CLOSED.  REMOVED AND REPLACED RIGHT PACK FCV.  OPS CHECKED GOOD AND MESSAGE CLEARED.

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