# SDR BSYA2009056

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 5, 2009
- Submitted: December 4, 2009
- Operation: Air carrier
- Aircraft: N104AN
- Make and model: Cessna 208B
- Registry model: [Cessna 208B](https://openairdocs.org/model/cessna-208b) (OpenAirDocs)
- Aircraft serial: 0918
- Aircraft time: 8,780 hours, 8,182 cycles
- System (JASC): [3060 · Propeller/Rotor Anti-Ice/De-Ice System](https://openairdocs.org/jasc/3060)
- Part: Switch
- Part number: MS25307312
- Condition: Burned
- Location: Prop Heat
- Stage of operation: CR
- How discovered: V
- Nature of condition: B
- Precautionary procedure: H
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/BSYA2009056

## Discrepancy

EN ROUTE FROM AVP TO MDT HAD SMOKE IN COCKPIT AFTER TURNING ON PROP HEAT SWITCH, THEN TURNED ON ALL ELECTRICAL POWER.  AFTER A FEW MINUTES, TURNED POWER BACK ON, ALL WAS GOOD WITH PROP HEAT SWITCH LEFT OFF.  AFTER LANDING IN MDT MAINTENANCE FOUND A BURNT SWITCH, MEL'D PROP.  DE-ICE SYSTEM AND FLEW BACK TO AVP, INSTALLED A NEW SWITCH, OPS CHECKS GOOD.

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