# NTSB Accident CEN13CA575
> **ROBINSON HELICOPTER COMPANY R22 MARINER** · 2013-08-18 · Lee's Summit, MO, USA · NONE
## Event
- **NTSB number:** CEN13CA575
- **Event ID:** 20131125X01337
- **Type:** Accident
- **Date:** 2013-08-18
- **Location:** Lee's Summit, MO, USA
- **Coordinates:** 38.970848, -94.349517
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** ROBINSON HELICOPTER COMPANY
- **Model:** R22 MARINER
- **Registration:** N8316D
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The student pilot's improper flare while performing an autorotation and the flight instructor's delayed remedial action to correct the high sink rate, which resulted in a hard landing.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CEN13CA575) · AI Analytics · CC0 1.0*