# SDR ASAA2020050732708

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 6, 2020
- Submitted: May 7, 2020
- Operation: Air carrier
- Aircraft: [N585AS](https://openairdocs.org/aircraft/N585AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35683
- Aircraft time: 47,689 hours, 14,283 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Warning System
- Condition: False Activation
- Location: Cockpit
- 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/ASAA2020050732708

## Discrepancy

#2 PACK LIGHT ILLUMINATED ON RECALL EXTINGUISHED ON MASTER CAUTION RESET. GROUNDED - YES. #2 PZTC SHOWS "TCV THIS PACK" FAULT ON PREV FLT. RESET FAULT. FAULT DID NOT RETURN. BITE TEST #2 PZTC GOOD. REF B737-800 FIM 21-62 TASK 831.

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