De Havilland DHC-6 Twin Otter crash, Jun 14, 1986 (8 killed)
De Havilland DHC-6 Twin Otter accident on June 14, 1986 near Calgary, Alberta, Canada with 8 fatalities.
- Date: June 14, 1986
- Aircraft: De Havilland DHC-6 Twin Otter
- Location: Calgary, Alberta, Canada
- Fatalities: 8
A Canadian Armed Forces de Havilland Canada Twin Otter (Rescue 807 aircraft) struck a mountain in Kananaskis Country, Alberta, on 14 June 1986, starting a small forest fire. All eight people on board were killed.