# SDR UALA2010020900511

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 8, 2010
- Submitted: February 15, 2010
- Operation: Air carrier
- Aircraft: [N674UA](https://openairdocs.org/aircraft/N674UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 29242
- Aircraft time: 35,474 hours, 9,286 cycles
- Engine: Pwa PW4060
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Regulator
- Part number: 32148621
- Part serial: 2026
- Condition: Uncontrollable
- Location: Cabin Temp
- 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/UALA2010020900511

## Discrepancy

ACFT TEMP IS STILL VERY HARD TO CONTROL IN AUTO SEEMS TO WORK OK WITH TRIM AIR OFF.  NEED TO REPLACE TRIM AIR PRESSURE REGULATOR.  NO PART IN SFO. REMOVED AND REPLACED TRIM VALVE AIR PRESSURE REGULATOR.  LEAK CHECKED IAW MM.

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