# NTSB Accident WPR11CA031
> **ROBINSON HELICOPTER R22 BETA** · 2010-10-29 · Prescott, AZ, USA · MINR
## Event
- **NTSB number:** WPR11CA031
- **Event ID:** 20101101X21849
- **Type:** Accident
- **Date:** 2010-10-29
- **Location:** Prescott, AZ, USA
- **Coordinates:** 34.654445, -112.419441
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 2
- **Uninjured:** 0
- **Total aboard:** 2
## Aircraft
- **Make:** ROBINSON HELICOPTER
- **Model:** R22 BETA
- **Registration:** N844SH
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The student pilot's failure to maintain the proper airspeed and the certificated flight instructor's inadequate supervision and delayed remedial action during a practice autorotation, which resulted in a hard landing and rollover.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR11CA031) · AI Analytics · CC0 1.0*