# NTSB Accident WPR13LA266
> **EUROCOPTER EC 130 B4** · 2013-06-08 · Grand Canyon, AZ, USA · NONE
## Event
- **NTSB number:** WPR13LA266
- **Event ID:** 20130610X71727
- **Type:** Accident
- **Date:** 2013-06-08
- **Location:** Grand Canyon, AZ, USA
- **Coordinates:** 35.650554, -112.147781
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** EUROCOPTER
- **Model:** EC 130 B4
- **Registration:** N130PH
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

A loss of throttle control movement during a practice autorotation that was planned to terminate with a power recovery for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation. Contributing to the accident was the soft terrain, which resulted in the skid getting caught, the nose-down movement of the helicopter, and subsequent main rotor contact with the tailboom.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR13LA266) · AI Analytics · CC0 1.0*