# SDR ASAA2023032742613

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 27, 2023
- Submitted: March 29, 2023
- Operation: Air carrier
- Aircraft: [N423AS](https://openairdocs.org/aircraft/N423AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 35206
- Aircraft time: 36,125 hours, 11,468 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/ASAA2023032742613

## Discrepancy

CONT CABIN ZONE TEMP LIGHT ILLUMINATES ON RECALL CLEARS WITH M/C RESET. GROUNDED - YES. BITE SHOWS FLT DECK TRIM VALVE FAULT. WAS ABLE TO RESET FAULT. CONT CAB TEMP CONTROL OPS CHECK GOOD I/A/W B737-900 FIM 21-62 TASK 833.

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