# SDR ASAA2023031742397

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 17, 2023
- Submitted: March 20, 2023
- Operation: Air carrier
- Aircraft: [N537AS](https://openairdocs.org/aircraft/N537AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35204
- Aircraft time: 41,140 hours, 11,906 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/ASAA2023031742397

## Discrepancy

CONT CABIN ZONE TEMP LITE ON RECALL- RESET WITH MASTER CAUTION. GROUNDED - YES. T/S IAW B737-800 FIM 21-62 TASK 801 - PASS. PACK CONTROLLER HISTORY SHOWED FLT DECK TRIM AIR FAULT ON PACK #2 CONTROLLER. OPS / IND NML - TEST PASS.

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