# SDR UALA2008111303920

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 22, 2008
- Submitted: December 15, 2008
- Operation: Air carrier
- Aircraft: [N216UA](https://openairdocs.org/aircraft/N216UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30549
- Aircraft time: 32,081 hours, 4,272 cycles
- Engine: Pwa PW40903
- System (JASC): [2161 · Cabin Temperature Controller](https://openairdocs.org/jasc/2161)
- Part: Controller
- Part number: 8102003
- Condition: Failed
- Location: Cabin
- Stage of operation: NR
- 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/UALA2008111303920

## Discrepancy

TRIM AIR PRSOV R RIGHT TRIM AIR PRESSURE RELIEF SHUTOFF VALVE (PRSOV) FAILED.  STATUS MSG-2124202 ACTIVE CL MODE.  REPLACED CTC-R AND OP CHK'D.  ALSO REPLACED COND TEMP SENSOR R AND OPERATED PACK.  ALL INDICATIONS NORMAL.

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