Stall and crash during flight due to windscreen ice accumulation

No fatalities • Randall Lake, Canada • Flight

An aircraft experienced a loss of control and subsequent crash after the crew attempted to clear heavy ice from the windscreen, leading to an aerodynamic stall.

What happened

During the flight, the crew encountered significant ice buildup on the cockpit windscreen. In an effort to restore visibility, the crew utilized a scraper to manually remove the accumulation of ice. During this process, the aircraft experienced a noticeable reduction in airspeed.

In an attempt to recover the lost speed and regain stable flight, the captain implemented corrective maneuvers. However, these inputs were improper for the flight conditions, resulting in an aerodynamic stall. The aircraft subsequently crashed, leading to the total destruction of the airframe. There were three injuries reported among the occupants, with no fatalities occurring during the accident.

Findings

Investigations into the event indicate that the primary factor was the improperly executed recovery maneuvers following the loss of airspeed caused by the ice removal process.

Probable cause

The pilot's incorrect control inputs during an attempt to recover lost airspeed led to an aerodynamic stall.

Frequently asked questions

What happened in the 1972-12-06 Douglas C-47 Skytrain (DC-3) accident near Randall Lake, Canada?

An aircraft experienced a loss of control and subsequent crash after the crew attempted to clear heavy ice from the windscreen, leading to an aerodynamic stall.

Were there any fatalities in the 1972-12-06 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 1972-12-06 involved a Douglas C-47 Skytrain (DC-3), registration CF-AUQ, operated by Superior Airways, at Randall Lake, Canada.

What was the probable cause of the accident?

The pilot's incorrect control inputs during an attempt to recover lost airspeed led to an aerodynamic stall.

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