# NTSB Accident CHI94LA274
> **NELSON BENSON B-8M** · 1994-08-09 · SANDWICH, IL, USA · FATL
## Event
- **NTSB number:** CHI94LA274
- **Event ID:** 20001206X01999
- **Type:** Accident
- **Date:** 1994-08-09
- **Location:** SANDWICH, IL, USA
- **Coordinates:** 41.639266, -88.61956
## Injuries
- **Highest injury:** FATL
- **Fatal:** 1
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** NELSON
- **Model:** BENSON B-8M
- **Registration:** N26063
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** DEST
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

IMPROPER PLANNING/DECISION BY THE PILOT (OWNER/PILOT/MECHANIC), AND HIS IMPROPER MODIFICATION OF THE FLIGHT CONTROL SYSTEM, WHICH RESULTED IN HIS FAILURE (OR INABILITY) TO MAINTAIN CONTROL OF THE GYROCOPTER.  A FACTOR RELATED TO THE ACCIDENT WAS: THE PILOT'S LACK OF FLIGHT TRAINING.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI94LA274) · AI Analytics · CC0 1.0*