# NTSB Accident ERA11FA078
> **CESSNA U206G** · 2010-12-05 · Leverett, MA, USA · FATL
## Event
- **NTSB number:** ERA11FA078
- **Event ID:** 20101205X84429
- **Type:** Accident
- **Date:** 2010-12-05
- **Location:** Leverett, MA, USA
- **Coordinates:** 42.444168, -72.491943
## Injuries
- **Highest injury:** FATL
- **Fatal:** 2
- **Serious:** 2
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 4
## Aircraft
- **Make:** CESSNA
- **Model:** U206G
- **Registration:** N9742Z
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

A total loss of engine power due to the fatigue failure of the crankshaft, which resulted from improper tightening of the cylinder hold-down nuts.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ERA11FA078) · AI Analytics · CC0 1.0*