# SDR ASAA2016051916799

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 19, 2016
- Submitted: May 23, 2016
- Operation: Air carrier
- Aircraft: [N531AS](https://openairdocs.org/aircraft/N531AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35199
- Aircraft time: 23,515 hours, 7,039 cycles
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Warning Light
- Condition: False Activation
- 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/ASAA2016051916799

## Discrepancy

ON RECALL CONT CAB ZONE TEMP ILLUMINATED.  RESETS WITH MASTER CAUTION.  ACFT GROUNDED.  ACCOMPLISHED PACK TEMP CONTROL BITE, REF FIM 21-62, TASK 801.  FOUND FLIGHT DECK TRIM VALVE FAULT.  COMPLETED VERIFY TEST, NO FAULTS FOUND. CLEARED FAULT, PACK TEMP CONTROL OPS NORMAL.

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