# SDR ASAA2023090945011

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 9, 2023
- Submitted: September 11, 2023
- Operation: Air carrier
- Aircraft: [N531AS](https://openairdocs.org/aircraft/N531AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35199
- Aircraft time: 46,899 hours, 13,661 cycles
- System (JASC): [2100 · Air Conditioning System](https://openairdocs.org/jasc/2100)
- 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/ASAA2023090945011

## Discrepancy

CONT CAB ZONE TEMP LIGHT ON. GROUNDED - YES. APPLIED APU AIR TO SYSTEM AND EXERCISED TRIM AIR VALVE. OPS CK NORMAL PER AMM 21-61-00 NO HISTORY LAST 30 DAYS. SEAMC NOTIFIED.

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