# SDR 2020FA0000158

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 14, 2020
- Submitted: February 14, 2020
- Operation: General aviation
- Aircraft: [N65575](https://openairdocs.org/aircraft/N65575), registered now
- Make and model: Cessna 172S
- Registry model: [Cessna 172S](https://openairdocs.org/model/cessna-172s) (OpenAirDocs)
- Aircraft serial: 172S9728
- Aircraft time: 2,925 hours
- Engine: Lyc IO360L2A
- Engine time: 10,225 hours
- Propeller: Mcauly 1A170E
- System (JASC): [7414 · Magneto/Distributor](https://openairdocs.org/jasc/7414)
- Part: Impulse Coupling
- Part number: M3163
- Condition: Failed
- Location: Magneto
- Part time: 496 hours
- Component: Magneto, Slick, 4371
- Component part number: 4371
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2020FA0000158

## Discrepancy

COMPLYING WITH SLICK 500 HR INSPECTION ON LEFT MAGNETO P/N 4371, S/N 19020681 AND RIGHT MAGNETO P/N 4371, S/N 19020682 ALL IMPULSE COUPLING RIVETS FAILED INSPECTION (LOOSE RIVETS). IT WAS THE FIRST 500 HR INSPECTION AND SERIAL NUMBERS OUTSIDE OF SB2-19.

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