# NTSB Accident CEN18LA158
> **ROBINSON HELICOPTER R44** · 2018-05-04 · East Troy, WI, USA · NONE
## Event
- **NTSB number:** CEN18LA158
- **Event ID:** 20180507X91846
- **Type:** Accident
- **Date:** 2018-05-04
- **Location:** East Troy, WI, USA
- **Coordinates:** 42.796943, -88.372497
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** ROBINSON HELICOPTER
- **Model:** R44
- **Registration:** N444VH
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

A partial loss of engine power for reasons that could not be determined based on the available information, which resulted in impact with terrain and dynamic rollover during the subsequent attempted landing.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CEN18LA158) · AI Analytics · CC0 1.0*