# SDR ASAA2016061116995

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 11, 2016
- Submitted: June 13, 2016
- Operation: Air carrier
- Aircraft: [N516AS](https://openairdocs.org/aircraft/N516AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 39044
- Aircraft time: 28,684 hours, 8,766 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Control Valve
- Condition: Malfunctioned
- Location: Rt A/C Pack
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2016061116995

## Discrepancy

RIGHT PACK LIGHT ILLUMINATES WITH RECALL.  PACK LIGHT EXTINGUISHES ON MASTER CAUTION RESET.  ACFT GROUNDED.  ACCOMPLISHED FIM 21-62, TASK 801.  FOUND CURRENT STATUS AND PREVIOUS FLIGHT FAULTS TCV ON THE NR 2 PACK/ZONE TEMP CONTROLLER. BOTH PACK/ZONE TEMP CONTROLLERS PASS THE VERIFY TEST.  RESET THE TCV FAULT ON THE NR 2 PACK/ZONE TEMP CONTROLLER.

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