# SDR ASAA2019122651700

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 25, 2019
- Submitted: December 26, 2019
- Operation: Air carrier
- Aircraft: [N559AS](https://openairdocs.org/aircraft/N559AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35178
- Aircraft time: 49,381 hours, 14,627 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Warning Light
- Condition: False Activation
- Location: Lt A/C Pack
- Stage of operation: NR
- 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/ASAA2019122651700

## Discrepancy

LEFT PACK ILLUMINATED DURING MASTER RECALL AND EXTINGUISHED DURING RESET. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 21-53 TASK 821 FOUND LEFT PACK TCV LIGHT ON WAS ABLE TO RESET FAULT. LEFT PACK OPS CK GOOD.

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