Primary finding
Probable cause
The pilot’s encounter with windshear during initial climb out, which resulted in a loss of control.
Investigator assessment
Analysis narrative
The pilot reported that during takeoff from a remote site surrounded by trees, he encountered windshear and a gusting tailwind during the initial climb. He said that once the airplane climbed above tree level, the airplane stopped climbing, lost altitude, and then struck a stand of trees at the departure end of the site, resulting in substantial damage to the wings and empennage. The pilot reported that there were no pre-accident mechanical failures or malfunctions with the airplane that would have precluded normal operation.