# SDR 2011FA0000474

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 20, 2011
- Submitted: July 20, 2011
- Operation: General aviation
- Aircraft: [N7170X](https://openairdocs.org/aircraft/N7170X), registered now
- Make and model: Cessna 150A
- Registry model: [Cessna 150A](https://openairdocs.org/model/cessna-150a) (OpenAirDocs)
- Aircraft serial: 15059270
- Aircraft time: 3,635 hours
- Engine: Cont O200A
- Engine time: 3,635 hours
- Propeller: Mcauly 1A100MCM
- System (JASC): [7414 · Magneto/Distributor](https://openairdocs.org/jasc/7414)
- Part: Impulse Coupling
- Part number: M3007
- Condition: Failed
- Location: Magneto
- Part time: 23 hours
- Component: Magneto, Slick
- Component part number: 4301
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2011FA0000474

## Discrepancy

TOTAL FAILURE OF IMPULSE COUPLING.  CAUSE TO BE DETERMINED BY FURTHER INSPECTION.

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