# NTSB Accident CHI03LA095
> **Air Tractor AT-401** · 2003-03-31 · Knox, IN, USA · SERS
## Event
- **NTSB number:** CHI03LA095
- **Event ID:** 20030414X00504
- **Type:** Accident
- **Date:** 2003-03-31
- **Location:** Knox, IN, USA
- **Coordinates:** 41.189723, -86.606941
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 1
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** Air Tractor
- **Model:** AT-401
- **Registration:** N45297
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

A loss of engine power due to oil starvation as a result of the failure of the master rod bearing.   Contributing factors were the tree line at the edge of the field, and the unsuitable terrain.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI03LA095) · AI Analytics · CC0 1.0*