# SDR 2002FA0000865

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 14, 2002
- Submitted: July 25, 2002
- Operation: General aviation
- Aircraft: [N1859A](https://openairdocs.org/aircraft/N1859A), registered now
- Make and model: Beech A36
- Registry model: [Beech A36](https://openairdocs.org/model/beech-a36) (OpenAirDocs)
- Aircraft serial: E1929
- Engine: Cont IO520BB
- System (JASC): [7414 · Magneto/Distributor](https://openairdocs.org/jasc/7414)
- Part: Spring
- Condition: Broken
- Location: Impulse Couplin
- Part time: 1,958 hours
- 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/2002FA0000865

## Discrepancy

PILOT REPORTED SMOOTH 200 RPM DROP ON LT MAGNETO DURING RUN UP.  TROUBLESHOOTING FOUND LT MAGNETO TIMING 7 DEGREES RETARDED.  MAGNETO WAS REMOVED AND IMPULSE COUPLING FOUND TO HAVE A BROKEN SPRING.  COUPLING WAS REPLACED WITH A NEW UNIT.

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