# NTSB Accident WPR16LA159
> **AIR TRACTOR INC AT 301** · 2016-08-02 · Weiser, ID, USA · NONE
## Event
- **NTSB number:** WPR16LA159
- **Event ID:** 20160804X02641
- **Type:** Accident
- **Date:** 2016-08-02
- **Location:** Weiser, ID, USA
- **Coordinates:** 44.220275, -116.907501
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** AIR TRACTOR INC
- **Model:** AT 301
- **Registration:** N23923
- **FAR Part:** 137
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

A partial loss of engine power due to an internal catastrophic failure of the master rod crankpin bearing.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR16LA159) · AI Analytics · CC0 1.0*