# SDR ASAA2019051429330

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 14, 2019
- Submitted: May 15, 2019
- Operation: Air carrier
- Aircraft: [N459AS](https://openairdocs.org/aircraft/N459AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36352
- Aircraft time: 20,920 hours, 6,825 cycles
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Warning System
- Condition: False Activation
- Location: Cockpit
- Stage of operation: TX
- 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/ASAA2019051429330

## Discrepancy

ZONE TEMP CONTROL LIGHT ILLUMINATED AFTER START. GROUNDED - YES. PRIMARY FLIGHT DECK CONTROL INOP. ACCOMPLISHED PACK TEMP CONTROL BITE TEST IAW FIM 21-62 TASK 801. FOUND FLT DECK TRIM VALVE ILLUMINATED. WAS ABLE TO RESET FAULT. CONTROL CAB TRIM AIR VALVE OPS CHECK GOOD IAW FIM 21-62 TASK 833.

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