# SDR ASAA2023080844478

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 8, 2023
- Submitted: August 9, 2023
- Operation: Air carrier
- Aircraft: [N517AS](https://openairdocs.org/aircraft/N517AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35197
- Aircraft time: 52,711 hours, 15,393 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023080844478

## Discrepancy

LH PACK LIGHT ILLUMINATES ON RECALLRESETS ON RESET MC RECALL. GROUNDED - YES. RELEASED PER MEL 21-32B LH PACK PRIMARY TEMP CONTROL INOPAUTHORIZED BY SEAMC MARK 23:34 ZRAN PACK TEMP CONTROL BITE PER FIM 21-61 TASK 801. FOUND ZONE TEMP CONT 1 " RAM AIR" FAULT. FAULT CLEARED ON VERIFY. NO HISTORY PAST 30 DAYS. THIS CLEARS MEL 21-32B. PLACARDS REMOVED. SEAMC SCOTT NOTIFIED.

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