# SDR ASAA2023071444028

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 14, 2023
- Submitted: July 17, 2023
- Operation: Air carrier
- Aircraft: [N581AS](https://openairdocs.org/aircraft/N581AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35188
- Aircraft time: 56,529 hours, 16,837 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: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023071444028

## Discrepancy

RIGHT PACK LIGHT ON MASTER RECALL RESETS WITH MASTER CAUTION. GROUNDED - YES. DURING INITAIL BITE CHECK FOUND FLT DECK FAULT INDICATED ON R PACK CONTROLLER BUT L PACK NO FAULT EXIST. REF FIM 21-62 TASK 801, CLEANED FLIGHT DECK SENSOR AND BITE CHECK AGAIN AFTER PACK OPERATING. NO FAULT EXIST GREEN GO LIGHT INDICATED DURING VERIFY AND PREV FLIGHT. REF FIM 21-62TASK810 THERE IS NO 30 DAYS HISTORY.

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