# SDR 98ZZZX1664

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 31, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N59829](https://openairdocs.org/aircraft/N59829), registered now
- Make and model: Piper PA-31-350
- Registry model: [Piper PA-31-350](https://openairdocs.org/model/piper-pa-31-350) (OpenAirDocs)
- Aircraft serial: 317652081
- Engine: Lyc TIO540J2BD
- System (JASC): [7414 · Magneto/Distributor](https://openairdocs.org/jasc/7414)
- Part: Distributor Gear
- Part number: 10682016
- Condition: Cracked
- Location: Magneto
- Part time: 1,091 hours
- Component: Electrosys, D6LN3200
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/98ZZZX1664

## Discrepancy

MAGNETO WAS INSTALLED ON LEFT ENGINE 11-24-97, AND WAS REMOVED 12-31-97 DUE TO CRACKED, MISSING TOOTH.  PREVIOUS MAGNETO HAD SUFFERED FAILURES OF BOTH DIST GEARS.  SUSPECT TORSIONAL VIBRATION IN ENGINE.

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