# NTSB Accident DFW07LA138
> **Air Tractor AT-401** · 2007-06-06 · Oak Grove, LA, USA · NONE
## Event
- **NTSB number:** DFW07LA138
- **Event ID:** 20070719X00960
- **Type:** Accident
- **Date:** 2007-06-06
- **Location:** Oak Grove, LA, USA
- **Coordinates:** 32.861667, -91.389442
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** Air Tractor
- **Model:** AT-401
- **Registration:** N92PK
- **FAR Part:** 137
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

A complete loss of power due to failure of the impeller drive gear train and displacement of the blower spring drive mechanism, which resulted in seizure of the propeller shaft/crankshaft.  Also causal was the failure of the phenolic separator bracket of the rear impeller support bearing for undetermined reasons.  A factor was the none suitable terrain for the forced landing.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=DFW07LA138) · AI Analytics · CC0 1.0*