# SDR ASAA2022030737643

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 7, 2022
- Submitted: March 9, 2022
- Operation: Air carrier
- Aircraft: [N590AS](https://openairdocs.org/aircraft/N590AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35687
- Aircraft time: 51,536 hours, 15,371 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: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2022030737643

## Discrepancy

ZONE TEMP CONT CAB ILLUMINATES, EXTINGUISH ON RESET. GROUNDED - YES. BOTH ZONE TEMP CONT LOGGED FLT DECK TRIM VALVE FAULT. FAULT CLEARED AND BOTH BITE CK GOOD PER B737-800 AMM 21-61-00, GND VERIFICATION SUCCESSFUL.

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