# NTSB Accident ERA22LA236
> **ROBINSON HELICOPTER COMPANY R44 II** · 2022-05-23 · Nashua, NH, USA · MINR
## Event
- **NTSB number:** ERA22LA236
- **Event ID:** 20220524105122
- **Type:** Accident
- **Date:** 2022-05-23
- **Location:** Nashua, NH, USA
- **Coordinates:** 42.782397, -71.520674
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 2
- **Uninjured:** 0
- **Total aboard:** 2
## Aircraft
- **Make:** ROBINSON HELICOPTER COMPANY
- **Model:** R44 II
- **Registration:** N666U
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The flight instructor’s failure to maintain control of the helicopter during the takeoff, which resulted in a dynamic rollover.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ERA22LA236) · AI Analytics · CC0 1.0*