# SDR 2023FA0000057

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 26, 2023
- Submitted: January 30, 2023
- Operation: General aviation
- Aircraft: [N254AT](https://openairdocs.org/aircraft/N254AT), registered now
- Engine: Lyc O360A1H6
- Engine time: 956 hours
- System (JASC): [7414 · Magneto/Distributor](https://openairdocs.org/jasc/7414)
- Part: Impulse Coupling
- Part number: M3529
- Condition: Defective
- Location: Magneto
- Part time: 956 hours
- Component: Magneto, Champion
- Component part number: 4371
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2023FA0000057

## Discrepancy

LEFT ENGINE LEFT MAGNETO MODEL 4373 S.N. 19071205, FOUND IMPULSE COUPLING RIVETS LOOSE. REPLACED IMPULSE COUPLING

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