# SDR ASAA2017112222666

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 22, 2017
- Submitted: November 27, 2017
- Operation: Air carrier
- Aircraft: [N512AS](https://openairdocs.org/aircraft/N512AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 39043
- Aircraft time: 35,784 hours, 10,820 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: 9
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2017112222666

## Discrepancy

ON MASTER RECALL,  ZONE TEMP CONTROL CABIN ILLUMINATED.  ACFT GROUNDED.  INITIAL INSPECTION SHOWED THE NR 2 TEMP CONTROLLER WITH FLT DECK TRIM VALVE FAULT.  PERFORMED  AMM  21-61-20-860-005. RESET FAULT, RAN TEST 3 MORE TIMES, NO DEFECTS NOTED.

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