We’re still collecting data for this aircraft. Routes appear once we’ve seen it fly enough times.
The crew (three engineers) were engaged in a series of ground tests. While rolling at high speed on a taxiway, control was lost. The airplane veered off taxiway to the left and eventually collided with trees. The airplane was damaged beyond repair while all three occupants were uninjured. Probable cause (official findings): It was determined that the crew failed to prepare the mission properly and forgot to remove the rudder lock prior to start the tests manoeuvres.
Douglas C-47 Skytrain (DC-3)