# SDR 2019F00004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 6, 2019
- Submitted: February 5, 2019
- Operation: General aviation
- Make and model: Boeing 737-300
- Registry model: [Boeing 737-300](https://openairdocs.org/model/boeing-737-300) (OpenAirDocs)
- Aircraft serial: 2449
- System (JASC): [2163 · Cabin Temperature Sensor](https://openairdocs.org/jasc/2163)
- Part: Switch
- Condition: Dirty
- Location: Cabin Temp
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2019F00004

## Discrepancy

NR 1 PACK TRIP OFF WITH NO SUCCESSFUL RESET. HAS BEEN CLEANED OVERHEAT SWITCH ON CONTROL CABIN TEMPERATURE SENSOR AND RESET PACK TRIP OFF LT IAW AMM 21-61-00.

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