# SDR ASAA2023100945523

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 9, 2023
- Submitted: October 12, 2023
- Operation: Air carrier
- Aircraft: [N487AS](https://openairdocs.org/aircraft/N487AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 44108
- Aircraft time: 29,695 hours, 9,126 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/ASAA2023100945523

## Discrepancy

CONT CAB ZONE TEMP ILLUMINATED, COMPLIED WITH QRH PROCEDURES. GROUNDED - YES. PERFOMRED BITE OF PACK TEMP CONTROLLER IAW FIM 21-62 TASK 801. FOUND FAULT IN PREVIOUS HISTORY FOR "FLT DECK TRIM VALVE". PERFOMRED FIM 21-62 TASK 832. PER INITIAL EVALUATION FAULT RESET SUCESSFUL NO FURTHER ACTION REQUIRED. THIS CLEARS 21-21G. SEAMC DAVE NOTIFIED. PLACARD REMOVED.

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