# SDR ASAA2016070317247

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 3, 2016
- Submitted: July 7, 2016
- Operation: Air carrier
- Aircraft: [N453AS](https://openairdocs.org/aircraft/N453AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36354
- Aircraft time: 9,977 hours, 3,250 cycles
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Controller
- Condition: Faulted
- Location: Cabin Temp
- 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/ASAA2016070317247

## Discrepancy

CONTROL CABIN ZONE TEMP CAUTION ON RECALL.  ACFT GROUNDED.  VERIFIED CONTROLLER CABIN ZONE TEMP CAUTION ON RECALL, ACFT CHECKED & RELEASED IAW MEL 21-21F.  TROUBLESHOT IAW FIM 21-62, TASK 848 & 801.  FOUND FAULT ON ZONE TEMP CONTROLLER 2, TRIM VALVE FLIGHT DECK.  CLEARED FAULT, COULD NOT DUPLICATE, NO HISTORY 60 DAYS, REMOVED.

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