# NTSB Accident WPR09LA160
> **ROBINSON HELICOPTER COMPANY R22** · 2009-03-20 · Prescott, AZ, USA · NONE
## Event
- **NTSB number:** WPR09LA160
- **Event ID:** 20090323X84621
- **Type:** Accident
- **Date:** 2009-03-20
- **Location:** Prescott, AZ, USA
- **Coordinates:** 34.699722, -112.670829
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** ROBINSON HELICOPTER COMPANY
- **Model:** R22
- **Registration:** N90764
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot's failure to maintain adequate main rotor rpm while maneuvering at a low altitude.

---
*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR09LA160) · MORVS · CC0 1.0*