# SDR ASAA2016042616539

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 26, 2016
- Submitted: April 28, 2016
- Operation: Air carrier
- Aircraft: [N492AS](https://openairdocs.org/aircraft/N492AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 44110
- Aircraft time: 1,437 hours, 496 cycles
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Valve
- Part number: 3989085
- Part serial: 25514
- Condition: Failed
- Location: Cabin Temp
- Part time: 1,462 hours, 503 cycles
- 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/ASAA2016042616539

## Discrepancy

DURING RECALL CONTROLLER CABIN ZONE TEMP LIGHT ILLUMINATED.  ACFT GROUNDED. ACCOMPLISHED FIM 21-62, TASK 832 FOUND FLT DECK TRIM VALVE FAULTED.  R & R FLT DECK TRIM VALVE REF MM 21-61-21 RE-ACCOMPLISHED BITE, FIM 21-62, TASK 801, NO FAULTS FOUND. CLEARED MEL 21-21F.

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