# SDR CA000501036

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 14, 2000
- Submitted: January 19, 2001
- Operation: General aviation
- Make and model: Piper PA-28-140
- Registry model: [Piper PA-28-140](https://openairdocs.org/model/piper-pa-28-140) (OpenAirDocs)
- Aircraft time: 13,626 hours
- Engine: Lyc O320E3D
- System (JASC): [7430 · Ignition Switching](https://openairdocs.org/jasc/7430)
- Part: Ignition Switch
- Part number: 103572101
- Condition: Failed
- Location: Instrument Panel
- Part time: 13,607 hours
- Stage of operation: TO
- How discovered: O
- Nature of condition: B, J
- Precautionary procedure: E, C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA000501036

## Discrepancy

(CAN) SMOKE OBSERVED IN COCKPIT WHEN MAGNETO SWITCH SELECTED TO LT MAG POSITION.   INSPECTED A/C WIRE BUNDLES AND CONNECTIONS.  REPLACED FAULTY SWITCH.  UNSERVICEABLE SWITCH DISASSEMBLED AND STRONG ELECTRICAL BURNING SMELL WAS NOTED AS WELL AS SOME ELECTRICAL ARCING NOTED INSIDE THE SWITCH.

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