# SDR 2009FA0000647

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 22, 2009
- Submitted: July 22, 2009
- Operation: General aviation
- Aircraft: [N4960R](https://openairdocs.org/aircraft/N4960R), registered now
- Make and model: Cessna 172H
- Registry model: [Cessna 172H](https://openairdocs.org/model/cessna-172h) (OpenAirDocs)
- Aircraft serial: 17256296
- Aircraft time: 11,295 hours
- Engine: Cont O300*
- Engine time: 4,140 hours
- System (JASC): [7414 · Magneto/Distributor](https://openairdocs.org/jasc/7414)
- Part: Cam
- Part number: AM3611
- Condition: Deformed
- Location: Magneto
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2009FA0000647

## Discrepancy

THE CAM FOR THE MAGNETO WAS FOUND TO BE NON UNIFORM IN SHAPE.  AFTER INSTALLATION OF THIS PART THE POINT GAP WAS DIFFERENT ON EACH CAM LOBE.

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