# SDR ASAA2012122993566

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 29, 2012
- Submitted: December 31, 2012
- Operation: Air carrier
- Aircraft: [N506AS](https://openairdocs.org/aircraft/N506AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35690
- Aircraft time: 17,450 hours, 5,545 cycles
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Controller
- Condition: Faulted
- Location: Temp Control
- 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/ASAA2012122993566

## Discrepancy

CONT CAB ZONE TEMP LIGHT ILLUMINATED.  EXTINGUISHED WITH MASTER CAUTION RESET.   PERFORMED FIM 21-62, TASK 842.  BITE TEST OF NR 2 ZONE TEMP CONTROLLER HAS FAULT, FLT DECK TRIM VALVE . CLEARED FAULT AND RAN PACKS. FAULT DID NOT RETURN.  INTERMITTENT FAULT IAW FIM.  NO HISTORY 30 DAYS.

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