# SDR ASAA2016112118784

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 21, 2016
- Submitted: November 23, 2016
- Operation: Air carrier
- Aircraft: [N531AS](https://openairdocs.org/aircraft/N531AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35199
- Aircraft time: 25,346 hours, 7,586 cycles
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Warning Light
- Condition: False Activation
- Location: Cockpit Temp
- Stage of operation: NR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2016112118784

## Discrepancy

DURING RECALL CONTROL CABIN ZONE TEMP LIGHT ILLUMINATED,  EXTINGUISHED WITH RESET.  ACFT GROUNDED. RESET CONTROL CABIN TRIM VALVE FAULT ON THE NR 2 PACK/ZONE TEMP CONTROLLER.  ACCOMPLISHED BITE TEST ON THE NR 2 PACK / ZONE TEMP CONTROLLER IAW AMM 21-61-00. NO CURRENT FAULTS NOTED. GROUND VERIFICATION SUCCESSFUL.

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