# SDR J4YR202407013652

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 1, 2024
- Submitted: July 1, 2024
- Operation: General aviation
- Filed by: [Jefferson City Aviation Inc, repair station J4YR693J](https://openairdocs.org/faa-repair-station/J4YR693J/jefferson-city-aviation-inc.md) (OpenAirDocs)
- Aircraft: [N8248T](https://openairdocs.org/aircraft/N8248T), registered now
- Make and model: Piper PA-28-161
- Registry model: [Piper PA-28-161](https://openairdocs.org/model/piper-pa-28-161) (OpenAirDocs)
- Aircraft serial: 288116003
- System (JASC): [7414 · Magneto/Distributor](https://openairdocs.org/jasc/7414)
- Part: Rotor Shaft
- Condition: Broken
- Location: Magneto
- Component: Magneto, Champion
- Component part number: 4370
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/J4YR202407013652

## Discrepancy

DURING GROUND RUN IT WAS NOTICED THAT THE RIGHT MAGNETO WAS INOPERATIVE. UPON TROUBLESHOOTING THE TECHNICIAN REMOVED AND VISUALLY INSPECTED THE RIGHT MAGNETO. DISCOVERED THE ROTOR SHAFT TO BE BROKEN AT THE CAM ATTACH POINT. REMOVED MAGNETO FROM SERVICE AND SENT OUT FOR REPAIR.

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