# SDR ASAA2015101913441

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 19, 2015
- Submitted: October 22, 2015
- Operation: Air carrier
- Aircraft: [N557AS](https://openairdocs.org/aircraft/N557AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35176
- Aircraft time: 36,008 hours, 10,656 cycles
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Warning Message
- Condition: False Activation
- Location: Cabin 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/ASAA2015101913441

## Discrepancy

CONTROL CABIN ZONE LIGHT ILLUMINATED, EXTINGUISHES ON RECALL.  ACFT GROUNDED. ACCOMPLISHED BITE OF THE PACK/ZONE TEMP.  CONTROLLERS, REF FIM 21-82, TASK 801 ON NR 2 CONTROLLER FLIGHT DECK TRIM VALVE, FAULT CLEARED.  RAN APU & PACKS, FLIGHT DECK TEMP. WAS CONTROLLED HOT & COLD, LIGHT STAYED EXTINGUISHED, INTERMITTENT FAULT.

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