# SDR 97ZZZX1150

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 7, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N117HS](https://openairdocs.org/aircraft/N117HS), registered now
- Make and model: Beech 58TC
- Registry model: [Beech 58TC](https://openairdocs.org/model/beech-58tc) (OpenAirDocs)
- Aircraft serial: TK21
- Engine: Cont TSIO520L
- System (JASC): [7414 · Magneto/Distributor](https://openairdocs.org/jasc/7414)
- Part: Distributor Gear
- Condition: Broke
- Location: Mag
- Part time: 3,695 hours
- Component: Bendix
- Stage of operation: NR
- Nature of condition: J
- Precautionary procedure: A, E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/97ZZZX1150

## Discrepancy

DISTRIBUTION GEAR BROKE AND CONTACT STUCK ON NR 2 CYL LEAD.  MAG CONTINUED TO ROTATE CAUSING ONLY NR 2 CYL TO FIRE EACH TIME POINTS OPENED.  THIS CAUSED SEVERE DETONATION IN NR 2 CYL BURNING A HOLE THROUGH PISTON.  THIS RESULTED IN AN INFLIGHT SHUT DOWN.  ENGINE INSP, AND FOUND TO BE CONTAMINATED WITH METAL.  ENGINE REPLACED.  SUBMITTER STATED IMPROPER MAINT AND OVERHAUL TIME OF MAG NOT C/W.

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