NTSB Factual Report

While performing a series of touch-and-go landings, the pilot inadvertently allowed the tail wheel-equipped airplane to touch down with one wing lower than the other. Almost immediately after the airplane touched the surface, it suddenly veered toward the edge of the runway. The pilot therefore added power in an attempt to execute a go-around, but before he could get the airplane airborne, it departed the runway and impacted the adjacent terrain.

NTSB Probable Cause

The pilot's failure to maintain directional control during an attempted go-around from a landing.