On March 22, 2020, about 1630 central daylight time, amateur-built Bower Challenger II airplane, N6138Z, was substantially damaged when it collided with a tree and impacted the ground near Lettsworth, Louisiana. The pilot was seriously injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. The pilot reported that he purchased the airplane about 1-1/2 weeks before the accident flight. This was his first flight. He had no previous flight time, nor had he received any flight instruction. He noted some familiarization with flying obtained from the internet. He had planned only to taxi; however, a wind gust caused the airplane to become airborne, and he ultimately flew for about 25 minutes "to get the hang of things." He attempted to land several times but was unable because of the turbulence. After another landing attempt, he again decided to go-around due to the turbulence. He thought the airplane had cleared trees near the flight path; however, the airplane was momentarily overcome by the continuing turbulence which resulted in it striking a tree. He stated there were no issues with the airplane; it was "performing flawlessly."