# NTSB Accident WPR10CA042
> **ROBINSON HELICOPTER R22 BETA** · 2009-10-31 · Marsing, ID, USA · NONE
## Event
- **NTSB number:** WPR10CA042
- **Event ID:** 20091102X00102
- **Type:** Accident
- **Date:** 2009-10-31
- **Location:** Marsing, ID, USA
- **Coordinates:** 43.549999, -116.800003
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** ROBINSON HELICOPTER
- **Model:** R22 BETA
- **Registration:** N74607
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot's failure to maintain adequate main rotor rpm during the approach and subsequent go-around and the certified flight instructor's inadequate supervision of the flight.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR10CA042) · AI Analytics · CC0 1.0*