# NTSB Accident WPR09TA277
> **HUGHES OH-6A** · 2009-06-04 · Benson, AZ, USA · NONE
## Event
- **NTSB number:** WPR09TA277
- **Event ID:** 20090605X62627
- **Type:** Accident
- **Date:** 2009-06-04
- **Location:** Benson, AZ, USA
- **Coordinates:** 31.999444, -110.35778
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** HUGHES
- **Model:** OH-6A
- **Registration:** N6641D
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot under instruction's inadequate autorotation technique and the instructor pilot’s delayed remedial action to arrest the rate of descent of the helicopter while in an autorotation flare.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR09TA277) · AI Analytics · CC0 1.0*