# SDR ASAA2017040920406

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 9, 2017
- Submitted: April 11, 2017
- Operation: Air carrier
- Aircraft: [N402AS](https://openairdocs.org/aircraft/N402AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41189
- Aircraft time: 17,557 hours, 5,759 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: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2017040920406

## Discrepancy

RIGHT PACK LIGHT ILLUMINATES ON RECALL. GOES OUT WITH PUSH OF MASTER CAUTION BUTTON. GROUNDED - YES. ACCOMPLISHED PZTC BITE, REF FIM 21-62 TASK 801. NR 2 CONTROLLER FAULTED TCV ON BIT AND PREVIOUS FLIGHT WITH A GO ON VERIFY. ACCOMPLISHED FIM 21-62 TASK 831 RIGHT TCV, NO FURTHER FAULTS LOGGED. RAN BOTH PACKS AND RE-ACCOMPLISHED PZTC BITE WITH NO FAULTS LOGGED, OPS CHECK NORMAL.

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