# NTSB Accident ERA12LA399
> **ROBINSON HELICOPTER COMPANY R22 MARINER** · 2012-06-14 · Oak Island, NC, USA · NONE
## Event
- **NTSB number:** ERA12LA399
- **Event ID:** 20120616X00943
- **Type:** Accident
- **Date:** 2012-06-14
- **Location:** Oak Island, NC, USA
- **Coordinates:** 33.893333, -78.081665
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** ROBINSON HELICOPTER COMPANY
- **Model:** R22 MARINER
- **Registration:** N1089N
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAWN
- **Weather:** VMC
## Probable cause

The pilot's failure to properly execute the helicopter practice autorotation recovery, which resulted in a collision with the water.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ERA12LA399) · AI Analytics · CC0 1.0*