# SDR ASAA2019031028574

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 10, 2019
- Submitted: March 12, 2019
- Operation: Air carrier
- Aircraft: [N579AS](https://openairdocs.org/aircraft/N579AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35187
- Aircraft time: 45,665 hours, 13,563 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Warning System
- Condition: False Activation
- Location: Cockpit
- Stage of operation: CL
- 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/ASAA2019031028574

## Discrepancy

DURING CLIMB OUT OF FOG RIGHT PACK LIGHT ILLUMINATED FOLLOWED QRH AND RESET TRIP RIGHT PACK LIGHT WENT OUT ONLY TO RE-ILLUMINATE SEVERAL MINUTES LATER. FOLLOWED QRH CLOSED ISOLATION VALVE AND TURNED OFF RIGHT PACK. GROUNDED - YES. C/W FIM 21-53 TASK 818 OPERATED RIGHT PACK AND PERFORMED BITE TEST NO FAULTS FOUND. PACK LIGHT FOR RIGHT PACK DID NOT ILLUMINATE PERFORMED GROUND VERIFICATION OF RIGHT PACK/ZONE TEMP CONTROLLER REF FIM 21-62 TASK 801 NO DEFECTS NOTED AT THIS TIME.

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