# SDR 99ZZZX3170

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 23, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: N4109D
- Make and model: Piper PA-31-350
- Registry model: [Piper PA-31-350](https://openairdocs.org/model/piper-pa-31-350) (OpenAirDocs)
- Aircraft serial: 31853012
- Engine: Lyc TIO540J2BD
- System (JASC): [7414 · Magneto/Distributor](https://openairdocs.org/jasc/7414)
- Part: Gear
- Condition: Fractured
- Location: Lt Magneto
- Part time: 843 hours
- Component: Bendix, SGRN1208
- 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/99ZZZX3170

## Discrepancy

PILOT COMPLAINED OF DEAD LT MAGNETO, RT ENGINE.  UPON INSPECTION, FOUND THE MAIN ROTOR GEAR HAD FRACTURED INTO SEVERAL PIECES.  ALL BREAKS APPEARED FRESH AND CLEAN.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.