# SDR ASAA2019102931151

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 27, 2019
- Submitted: October 30, 2019
- Operation: Air carrier
- Aircraft: [N513AS](https://openairdocs.org/aircraft/N513AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35192
- Aircraft time: 42,330 hours, 12,616 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Warning Light
- Condition: False Activation
- Location: A/C Pack
- Stage of operation: DE
- 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/ASAA2019102931151

## Discrepancy

DURING DESCENT CHECKLIST, LEFT PACK LIGHT ILLUMINATED WITH RECALL. PACK LIGHT EXTINGUISHED WITH MASTER CAUTION RESET. GROUNDED - YES. FOUND PACK TEMP CONTROLLER BITE PROCEDURE ON BOTH CONTROLLERS PER B737-800 FIM 21-62 TASK 801. REST CONTROLLERS & NO FAULTS FOUND.

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