# NTSB Accident ERA17LA203
> **CESSNA 172** · 2017-06-12 · Suffolk, NY, USA · NONE
## Event
- **NTSB number:** ERA17LA203
- **Event ID:** 20170612X05005
- **Type:** Accident
- **Date:** 2017-06-12
- **Location:** Suffolk, NY, USA
- **Coordinates:** 40.750556, -72.948333
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** CESSNA
- **Model:** 172
- **Registration:** N13306
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

A loss of preload to the crankshaft gear attachment bolt due to improper installation, which resulted in the fatigue failure of the crankshaft gear alignment dowel and led to the rotation of the crankshaft gear and a subsequent total loss of engine power.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ERA17LA203) · AI Analytics · CC0 1.0*