# NTSB Accident IAD99GA056
> **Eurocopter AS-350** · 1999-08-03 · ISLIP, NY, USA · MINR
## Event
- **NTSB number:** IAD99GA056
- **Event ID:** 20001212X19539
- **Type:** Accident
- **Date:** 1999-08-03
- **Location:** ISLIP, NY, USA
- **Coordinates:** 40.800537, -73.120727
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 2
- **Uninjured:** 0
- **Total aboard:** 2
## Aircraft
- **Make:** Eurocopter
- **Model:** AS-350
- **Registration:** N211PD
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot's loss of control during hydraulics-off hovering flight and the instructor's inadequate supervision of the maneuver.  A factor was the tailwind.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=IAD99GA056) · MORVS · CC0 1.0*