# SDR MYWA120013

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 30, 2012
- Submitted: February 3, 2012
- Operation: Air carrier
- Aircraft: [N734MA](https://openairdocs.org/aircraft/N734MA), registered now
- Make and model: Boeing 737-8Q8
- Registry model: [Boeing 737-8Q8](https://openairdocs.org/model/boeing-737-8q8) (OpenAirDocs)
- Aircraft serial: 30039
- Aircraft time: 29,681 hours, 10,761 cycles
- System (JASC): [2161 · Cabin Temperature Controller](https://openairdocs.org/jasc/2161)
- Part: Controller
- Condition: Malfunctioned
- Location: Ac Bay
- 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/MYWA120013

## Discrepancy

ETOPS SIGNIFICANT SYSTEM: ZONE TEMP LIGHT ILLUMINATES ON RECALL.  F/M ADVICED CONTROLLER 1 HAD THE LIGHTS ILLUMINATED.  REMOVED AND REPLACED PACK/ZONE TEMP CONTROLLER NR 1 AND OPS TEST OK IAW AMM 21-61-20.

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