# SDR ASAA2016093018150

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 30, 2016
- Submitted: October 3, 2016
- Operation: Air carrier
- Aircraft: [N566AS](https://openairdocs.org/aircraft/N566AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35182
- Aircraft time: 37,531 hours, 11,269 cycles
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Warning Light
- Condition: False Activation
- Location: Zone Temp
- Stage of operation: NR
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2016093018150

## Discrepancy

ZONE TEMP ILLUMINATED ON RECALL LIGHT EXTINGUISHES ON MASTER CAUTION RESET. ACFT GROUNDED. ACCOMPLISHED ZONE TEMP CONTROLLER BITE ON BOTH CONTROLLERS IAW AMM 21-61-00, ZONE TEMP CONTROLLER NR 2 FAULTED "FLT DECK TRIM VALVE", CLEANED FLT DECK SENSOR AND FILTER, RETESTED ZONE TEMP CONTROLLER NR 2 TWO MORE TIMES AND FAULT DID NOT COME BACK, ZONE TEMP DOES NOT ILLUMINATE ON RECALL, GROUND VERIFICATION SUCCESSFUL.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.