# SDR ASAA2022021237422

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 12, 2022
- Submitted: February 16, 2022
- Operation: Air carrier
- Aircraft: [N403AS](https://openairdocs.org/aircraft/N403AS), registered now
- Make and model: Boeing 737-900ER
- Registry model: [Boeing 737-900ER](https://openairdocs.org/model/boeing-737-900er) (OpenAirDocs)
- Aircraft serial: 41730
- Aircraft time: 34,677 hours, 11,123 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: TX
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2022021237422

## Discrepancy

ZONE TEMP CONT CAB LT AFTER START. GROUNDED - YES. PERFORMED CABIN TEMP CONTROLLER BITE CHECK REF B737-900 AMM 21-61-00-700-806-002 FOUND FAULT MSG FOR (FLT DECK TRIM VALVE) ON CONTROLLER #2 , CLEARS AFTER RESET CURRENTLY NO ACTIVE FAULTS.

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