# SDR IKBR2020021989092

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 18, 2020
- Submitted: February 19, 2020
- Operation: General aviation
- Filed by: [The Ohio State University Airport, repair station IKBR028F](https://openairdocs.org/faa-repair-station/IKBR028F/the-ohio-state-university-airport.md) (OpenAirDocs)
- Aircraft: [N30SU](https://openairdocs.org/aircraft/N30SU), registered now
- Make and model: Cessna 172S
- Registry model: [Cessna 172S](https://openairdocs.org/model/cessna-172s) (OpenAirDocs)
- Aircraft serial: 172S11625
- Aircraft time: 2,096 hours
- System (JASC): [2460 · DC Power Distribution System](https://openairdocs.org/jasc/2460)
- Part: Master Switch
- Part number: S344311
- Condition: Burned
- Location: Avionics
- Part time: 2,096 hours
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IKBR2020021989092

## Discrepancy

PREFLIGHT REPORTED MFD WOULD NOT POWER UP AND BURNING SMELL INSPECTION FOUND AVIONICS MASTER SWITCH DEFECTIVE INSTALLED NEW SWITCH OPS CHECK GOOD

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