Aircraft impact with embankment during final approach

No fatalities • Des Moines, United States of America • Landing (descent or approach)

An aircraft struck an embankment short of the runway threshold during its final approach, resulting in injuries to both crew members.

What happened

During the final approach phase of flight, the aircraft collided with a dirt embankment situated approximately 300 feet before the threshold of runway 03. The impact caused the landing gear to be ripped from the airframe, leading the plane to pitch forward and crash. The incident resulted in two injuries to the crew members on board. The aircraft sustained damage that rendered it a total loss.

Findings

The investigation determined that the primary cause of the accident was the crew's failure to recognize that the aircraft was at an insufficient altitude. Several environmental and mechanical factors contributed to the event:

  • Presence of ice on the airframe
  • Accumulation of ice on the windshield
  • Severe icing conditions, including freezing rain and sleet
  • Reduced visibility of two miles or less
  • Wind gusts reaching 20 knots

Icing conditions and low visibility significantly hindered the crew's ability to maintain situational awareness regarding their altitude and distance from the terrain.

Probable cause

The crew misjudged the aircraft's altitude and distance from the runway threshold while operating in severe icing and low-visibility conditions.

Frequently asked questions

What happened in the 1978-12-02 Douglas C-47 Skytrain (DC-3) accident near Des Moines, United States of America?

An aircraft struck an embankment short of the runway threshold during its final approach, resulting in injuries to both crew members.

Were there any fatalities in the 1978-12-02 Douglas C-47 Skytrain (DC-3) accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 1978-12-02 involved a Douglas C-47 Skytrain (DC-3), registration N41447, operated by SMB Stage Line (Sedalia-Marshall-Boonville Stage Line), at Des Moines, United States of America.

What was the probable cause of the accident?

The crew misjudged the aircraft's altitude and distance from the runway threshold while operating in severe icing and low-visibility conditions.

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