# NTSB Accident WPR20LA054
> **Mitsubishi MU2B** · 2019-12-30 · Big Piney, WY, USA · NONE
## Event
- **NTSB number:** WPR20LA054
- **Event ID:** 20191230X20237
- **Type:** Accident
- **Date:** 2019-12-30
- **Location:** Big Piney, WY, USA
- **Coordinates:** 42.582221, -110.108886
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 4
- **Total aboard:** 4
## Aircraft
- **Make:** Mitsubishi
- **Model:** MU2B
- **Registration:** N43866
- **FAR Part:** 091
- **Engines:** 2
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The failure of the right propeller position to correspond to the throttle change when moved to the beta position for reasons that could not be determined based on available evidence.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR20LA054) · AI Analytics · CC0 1.0*