# NTSB Accident CHI91LA128
> **DE HAVILLAND BEAVER U-6A** · 1991-04-09 · OAK ISLAND, MN, USA · NONE
## Event
- **NTSB number:** CHI91LA128
- **Event ID:** 20001212X16757
- **Type:** Accident
- **Date:** 1991-04-09
- **Location:** OAK ISLAND, MN, USA
- **Coordinates:** 49.309356, -94.839385
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 4
- **Total aboard:** 4
## Aircraft
- **Make:** DE HAVILLAND
- **Model:** BEAVER U-6A
- **Registration:** N9028
- **FAR Part:** 135
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

UNSUITABLE TERRAIN WAS SELECTED BY THE PILOT.  A FACTOR RELATED TO THE ACCIDENT WAS THE TERRAIN/RUNWAY WAS COMPOSED OF WEAK ICE.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI91LA128) · AI Analytics · CC0 1.0*