# SDR ASAA0852501

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 25, 2008
- Submitted: January 30, 2008
- Operation: Air carrier
- Aircraft: [N583AS](https://openairdocs.org/aircraft/N583AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35681
- Aircraft time: 1,948 hours, 600 cycles
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Valve
- Part number: 3989083
- Part serial: 9772
- Condition: Malfunctioned
- Location: Temp
- Part time: 1,935 hours, 597 cycles
- 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/ASAA0852501

## Discrepancy

AFT CABIN TEMPERATURE CONTROLLER WOULD NOT HOLD SET TEMPERATURE. REPLACED TRIM MOD VALVE.

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