# SDR ASAA2023021441962

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 14, 2023
- Submitted: February 17, 2023
- Operation: Air carrier
- Aircraft: [N409AS](https://openairdocs.org/aircraft/N409AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41733
- Aircraft time: 36,214 hours, 11,553 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: NR
- 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/ASAA2023021441962

## Discrepancy

ZONE TEMP FOR CONT CAB ILLUMINATED WITH RECALL. RAN QRH EXT WITH RESET. GROUNDED - YES. ACCOMPLISHED TEMP CONTROLLER BITE. B737-900 AMM TASK 21-61-00-700-806-002 #2 CONTROLLER FLT DECK TRIM VALVE SHOWED FAULT. AFTER RESET BITE PASSED. OPS GOOD PER AMM TASK 21-61-00-700-811-002.

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