# NTSB Accident CHI99LA141
> **BARRETT BENSEN B-8** · 1999-05-01 · MT. PLEASANT, MI, USA · MINR
## Event
- **NTSB number:** CHI99LA141
- **Event ID:** 20001212X18715
- **Type:** Accident
- **Date:** 1999-05-01
- **Location:** MT. PLEASANT, MI, USA
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 1
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** BARRETT BENSEN
- **Model:** B-8
- **Registration:** N4659T
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

the inadequate rotor rpm by the pilot.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI99LA141) · AI Analytics · CC0 1.0*