# SDR 2022FA0000598

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 1, 2022
- Submitted: October 13, 2022
- Operation: General aviation
- Aircraft: [N989SP](https://openairdocs.org/aircraft/N989SP), registered now
- Make and model: Cessna 172S
- Registry model: [Cessna 172S](https://openairdocs.org/model/cessna-172s) (OpenAirDocs)
- Aircraft serial: 172S8210
- Aircraft time: 4,305 hours
- System (JASC): [2497 · Electrical Power System Wiring](https://openairdocs.org/jasc/2497)
- Part: Switch
- Part number: W31X100010
- Condition: Burned
- Location: Switch Panel
- Stage of operation: CL
- How discovered: O
- Nature of condition: B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2022FA0000598

## Discrepancy

INTERNAL FAILURE INSIDE TAXI LIGHT SWITCH CAUSED ARCING INSIDE SWITCH. THE SUBSEQUENT ARCING CAUSED SWITCH INTERNAL COMPONENTS TO BURN AND SMOKE IN COCKPIT.

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