No fatalities

Aircraft Strikes Radio Tower During VFR Flight in Poor Weather; Cargo Breakaway Injures Occupants (C-GNNA)

Sachigo Lake, CanadaLanding (descent or approach)

On January 19, 1986, a Douglas C-47 Skytrain (DC-3) (registration C-GNNA) operated by Austin Airways was involved in an aviation accident near Sachigo Lake, Canada during landing or approach. No fatalities were reported. Investigators recorded the probable cause as: The crew initiated a VFR flight based on weather forecasts indicating that suitable weather conditions would exist for the duration of the flight. En route weather conditions deteriorated below those required for VFR flight. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 8 related events involving the same aircraft type or operator are linked below.

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary reportUpdated 2026-06-11Data APIEditorial standards

An aircraft with two crew and two passengers struck a 150-foot radio tower while manoeuvring to land in poor weather. A wheels-up forced landing followed; unsecured cargo drums broke free, trapping passengers. The Canadian Aviation Safety Board cited continued VFR flight into below-minimum weather and improper cargo securing.

Incident Overview

The aircraft, carrying two crew members, two passengers, and a load of cargo, struck a 150-foot-high radio tower while the crew was manoeuvring to land in poor weather. Following the collision, the aircraft became difficult to control, prompting the crew to execute a wheels-up forced landing.

During the landing, the cargo—drums containing automotive gasoline—broke free, causing damage and trapping the passengers. Once the drums were moved, the passengers were able to exit the aircraft through the cockpit escape hatch.

Injuries and Escape

The pilot-in-command and one passenger sustained serious injuries. The other two occupants escaped without reported injury; however, the source notes that the passenger's injuries would have been reduced had a shoulder harness been worn.

Investigation Findings

The Canadian Aviation Safety Board determined that the flight was continued into below VFR weather conditions. Additionally, the cargo had not been secured in accordance with the requirements of the company's operating certificate.

Official findings reported:

  • The crew initiated a VFR flight based on weather forecasts indicating suitable conditions for the duration of the flight.
  • En route weather deteriorated below VFR minimums.
  • The flight was continued into below VFR weather.
  • During an attempt to navigate using automatic direction finding equipment and maintain visual ground reference, the pilot manoeuvred at low altitude, striking the NDB tower.
  • A wheels-up forced landing was carried out due to difficulty controlling the aircraft and uncertainty about collision damage.
  • The passenger's injuries would have been reduced with a shoulder harness.

Probable cause

The crew initiated a VFR flight based on weather forecasts indicating that suitable weather conditions would exist for the duration of the flight. En route weather conditions deteriorated below those required for VFR flight. The flight was continued into below VFR weather conditions. During an attempt to navigate using the automatic direction finding equipment and to maintain visual reference with the ground, the pilot manoeuvred at a low altitude, and the aircraft struck the NDB tower. A wheels-up forced landing was carried out because the crew was having difficulty controlling the aircraft and was uncertain about the damage sustained in the collision. The passenger's injuries would have been reduced had a shoulder harness been worn.