# SDR ASAA2015120614130

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 6, 2015
- Submitted: December 8, 2015
- Operation: Air carrier
- Aircraft: [N538AS](https://openairdocs.org/aircraft/N538AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 41188
- Aircraft time: 14,108 hours, 4,136 cycles
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Controller
- Condition: Faulted
- Location: Cabin Temp
- Stage of operation: NR
- 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/ASAA2015120614130

## Discrepancy

CONTROL CABIN ZONE TEMP.  LIGHT COMES ON DURING RECALL AND RESETS AFTER MASTER CAUTION RESET.  ACFT GROUNDED.  ACCOMPLISHED PACK/ZONE TEMP CONTROLLER BITE, REF FIM 21-62, TASK 801.  FOUND FAULT ON FLIGHT DECK TRIM VALVE NR 2 CONTROLLER.  FAULT RESET, INTERMITTENT FAULT.

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