# SDR ASAA2017031220141

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 12, 2017
- Submitted: March 14, 2017
- Operation: Air carrier
- Aircraft: [N477AS](https://openairdocs.org/aircraft/N477AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 40716
- Aircraft time: 6,930 hours, 2,289 cycles
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Warning Message
- Condition: False Activation
- Location: Temp
- Stage of operation: NR
- How discovered: 9
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2017031220141

## Discrepancy

PRIMARY CONTROL TEMP INOPERATIVE. ACFT  GROUNDED. FOUND TEMP CONTROLLER NR 2 TCV FLIGHT DECK FAULT ON PREVIOUS LEG. RAN BITE CHECK, FAULT CLEARED. CLEANED FLIGHT DECK AIR FILTER. RAN PACKS FOR 30 MINUTES. RAN BITE CHECK AGAIN, NO FAULTS FOUND.

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