# SDR ASAA2019072430200

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 24, 2019
- Submitted: July 30, 2019
- Operation: Air carrier
- Aircraft: [N519AS](https://openairdocs.org/aircraft/N519AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 36482
- Aircraft time: 39,737 hours, 11,825 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Warning System
- Condition: False Activation
- Location: Cockpit
- Stage of operation: TX
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2019072430200

## Discrepancy

DURING PREFLIGHT AT GATE LEFT PACK LIGHT ILLUMINATED. RAN QRH CHECKLIST AND PACK LIGHT EXTINGUISHED AFTER PRESSING TRIP RESET. PACK RESUMED NORMAL OPERATIONS. GROUNDED - YES. PERFORMED FIM 21-53 TASK 803 INTIAL EVAL PACK LIGHT RESET AND REMAINS OUT DETERMINED TO BE INTERMITTENT FAULT. OKAY FOR SERVICE.

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