# SDR ASAA2021013033986

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 30, 2021
- Submitted: February 3, 2021
- Operation: Air carrier
- Aircraft: [N584AS](https://openairdocs.org/aircraft/N584AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35682
- Aircraft time: 49,414 hours, 14,663 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: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2021013033986

## Discrepancy

AFTER START THE CONT CAB ZONE TEMP LIGHT ILLUMINATED AFTER PUSHING RECALL, (ANNUN PANEL) EXTINGUISHED AFTER PUSHING THE MASTER CAUTION LIGHT. GROUNDED - YES. PERFORMED B737-800 FIM 21-62 TASK 801, FOUND TRIM VALVE FLT DECK LIGHT ILLUMINATED ON CONTROLLER, INSPECTED WIRING & CLEANED CANNON PLUG ON ZONE TRIM AIR VALVE. RE-PERFORMED BITE CK NO FAULTS NOTED.

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