# SDR V0JA20150331001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 31, 2015
- Submitted: April 1, 2015
- Operation: Air carrier
- Aircraft: [N418DL](https://openairdocs.org/aircraft/N418DL), registered now
- Make and model: Lear 31A
- Registry model: [Lear 31A](https://openairdocs.org/model/learjet-31a) (OpenAirDocs)
- Aircraft serial: 181
- Aircraft time: 6,050 hours, 5,507 cycles
- System (JASC): [2140 · Heating System](https://openairdocs.org/jasc/2140)
- Part: Unknown
- Condition: Overheated
- Location: Cabin
- Stage of operation: CR
- How discovered: O
- Nature of condition: B, M
- Precautionary procedure: H
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/V0JA20150331001

## Discrepancy

THE CABIN AUX HEAT SYS MALFUNCTIONED PRODUCING SMOKE IN CABIN DUE TO OVERHEATING.  THE AUX CABIN HEAT SWITCH WAS IN THE OFF POSITION.

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