# SDR ASAA1057385

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 15, 2010
- Submitted: February 17, 2010
- Operation: Air carrier
- Aircraft: [N558AS](https://openairdocs.org/aircraft/N558AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35177
- Aircraft time: 13,896 hours, 3,996 cycles
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Controller
- Condition: Malfunctioned
- Location: Cabin Temp
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA1057385

## Discrepancy

CONT CAB/ZONE TEMP LIGHT ILLUMINATED.  NR 2 ZONE/TEMP CONTROLLER LOGGED FLIGHT DECK TRIM VALVE FAULT.  RESET FAULT ON NR 2 ZONE/TEMP CONTROLLER.  GROUND VERIFICATION TEST PASSED REF MM 21 61 00.

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