# NTSB Accident WPR10LA003
> **MATESKON FISHER DAK** · 2009-10-03 · Bozeman, MT, USA · MINR
## Event
- **NTSB number:** WPR10LA003
- **Event ID:** 20091003X73552
- **Type:** Accident
- **Date:** 2009-10-03
- **Location:** Bozeman, MT, USA
- **Coordinates:** 45.714721, -111.188331
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 1
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** MATESKON
- **Model:** FISHER DAK
- **Registration:** N359JM
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

A loss of engine power due to shearing of the crankshaft gear cluster bolts. Contributing to the accident was the lack of regular overhaul periods as recommended by the engine manufacturer.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR10LA003) · AI Analytics · CC0 1.0*