Synopsis
During takeoff, witnesses near the departure end of the runway reported that the airplane appeared to be 'staggering out.' The pilot stated that the engine lost partial power, prompting a reversal of course for an emergency downwind landing. The airplane touched down on the runway at midfield but at a 45-degree angle. It then continued across the ground, jumped a ditch, struck a tree, and collided with three parked airplanes before coming to a halt.
Witness and Pilot Accounts
The pilot indicated that an employee of the operator assisted in cleaning snow off the wings. However, the employee denied this, stating that he only provided a broom to the pilot. The employee did notice snow and ice on the wings and advised the pilot that it needed to be removed before flying. The front seat passenger reported that the pilot used a broom to clean the snow off the wings by himself. This passenger did not recall the engine losing power but noted that the airplane was flying low and was not climbing. He did not remember whether any snow or ice remained on the wings prior to takeoff.
Another passenger recalled seeing icicles hanging from the wings and approximately 2 inches of snow on them. This passenger assisted the pilot by using their arms to brush the snow and ice off the wings and stated that the wings were clean before departure.
Engine Examination
An examination of the engine disclosed no evidence that would preclude power being developed. Calculations indicated that the airplane was near maximum gross weight and within center of gravity limits.