# SDR ASAA2022012837279

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 28, 2022
- Submitted: February 1, 2022
- Operation: Air carrier
- Aircraft: [N462AS](https://openairdocs.org/aircraft/N462AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36362
- Aircraft time: 28,525 hours, 9,148 cycles
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: TX
- How discovered: V
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2022012837279

## Discrepancy

AFTER STARTING ENGINES DURING MASTER CAUTION RECALL WE RECEIVED A FLIGHT DECK CONT CAB LIGHT THE LIGHT RESETS. GROUNDED - YES. PERFORMED PZTC BITE REF B737-900 AMM 21-61-00-760-806-002 #2 CONTROLLER FOUND FLIGHT DECK TRIM VALVE FAULT. PERFORMED FIM 21-62 TASK 832 FAULT RESET AND DID NOT RETURN WITH ADDITIONAL PZTC BITE AND OPPERATION OF PACKS.

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