# SDR ASAA2019102531098

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 23, 2019
- Submitted: October 25, 2019
- Operation: Air carrier
- Aircraft: [N593AS](https://openairdocs.org/aircraft/N593AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35107
- Aircraft time: 44,034 hours, 13,267 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: V
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2019102531098

## Discrepancy

CONT CAB ZONE TEMP ILLUMINATES DURING MASTER CAUTION RECALL EXTINGUISHES UPON MC RESET. GROUNDED - YES. PERFORMED BITE PROCEDURE, REF B737-800 FIM 21-62 TASK 801. NO FAULTS NOTED. INCOMIMG CREW REPORTS ZONE TEMP WORKING. CLEARS MEL 21-21G.

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