# SDR ASAA11510593

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 27, 2011
- Submitted: October 31, 2011
- Operation: Air carrier
- Aircraft: [N590AS](https://openairdocs.org/aircraft/N590AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35687
- Aircraft time: 14,190 hours, 4,507 cycles
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Unknown
- Condition: Malfunctioned
- Location: Cabin Temp
- Stage of operation: TX
- 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/ASAA11510593

## Discrepancy

AFTER START CHECKLIST AFTER PUSHING RECALL MASTER CAUTION LIGHT AND A/C LIGHT (CONT CABIN ZONE TEMP) REMAINED ILLUMINATED.  QRH COMPLETED.  A/C LIGHT GOES OUT AFTER PUSHING MASTER CAUTION RESET. SEAMC CONTACTED.  NR 2 CONTROLLER LOGGED FLT DECK TRIM VALVE FAULT.  FAULT CLEARED.  RAN PACK PERFORMED CONTROL CABIN TEMP CONTROL TEST REF MM 21 61 0 NORMAL.  PERFORMED BITE ON NR 2 TEMP CONTROLLER NO CURRENT FAULTS.  GROUND VERIFICATION SUCCESSFUL OK FOR SERVICE.

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