# NTSB Accident CEN21LA244
> **DEHAVILLAND DHC-2 MK.I** · 2021-05-22 · Oak Island, MN, USA · SERS
## Event
- **NTSB number:** CEN21LA244
- **Event ID:** 20210601103181
- **Type:** Accident
- **Date:** 2021-05-22
- **Location:** Oak Island, MN, USA
- **Coordinates:** 49.314838, -94.857267
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 1
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 3
## Aircraft
- **Make:** DEHAVILLAND
- **Model:** DHC-2 MK.I
- **Registration:** N218RD
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** MINR
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The failure of an O-ring in the landing gear system, which resulted in the inadvertent extension of the main wheel in the amphibious float. Contributing to the accident was the pilot’s decision to depart with a known hydraulic leak in the landing gear system.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CEN21LA244) · AI Analytics · CC0 1.0*