# SDR ASAA2019020628077

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 6, 2019
- Submitted: February 7, 2019
- Operation: Air carrier
- Aircraft: [N589AS](https://openairdocs.org/aircraft/N589AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35686
- Aircraft time: 42,701 hours, 12,870 cycles
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Warning System
- Condition: False Activation
- Location: Cockpit
- Stage of operation: NR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2019020628077

## Discrepancy

ZONE TEMP CONTROL ZONE CAUTION LIGHT ILLUMINATED ON RECALL AND RESET ON MASTER CAUTION RESET. GROUNDED - YES. PERFORMED FIM 21-61 TASK 801 BITE PROCS. NO HISTORY IN 30 DAYS. NO FAULT NOTED. RESET BOX. OPS NORMAL.

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