# SDR ASAA2020062542834

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 24, 2020
- Submitted: June 25, 2020
- Operation: Air carrier
- Aircraft: [N491AS](https://openairdocs.org/aircraft/N491AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 44109
- Aircraft time: 17,901 hours, 5,735 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Warning Message
- Condition: False Activation
- Location: Rt A/C Pack
- 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/ASAA2020062542834

## Discrepancy

RIGHT PACK LIGHT ILLUMINATED DURING PREFLIGHT. GROUNDED - YES. BITE CHECKED BOTH ZONE TEMP CONTROLLERS IAW FIM 21-62 TASK 801.  RIGHT FAULTED FOR RIGHT PACK TCV. FAULT RESET. RAN VERIFICATION TEST TWO TIMES WITH NO DEFECTS NOTED.

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