The pilot in the experimental amateur-built, tailwheel-equipped airplane reported that this was his third test flight. During the landing roll, he heard a loud noise, and the left side of the airplane dropped. The airplane veered to the left and exited the left side of the runway. The left side of the airplane dug into the ground and the airplane nosed over.
The FAA Aviation Safety Inspector that examined the airplane reported that the left main landing gear axle weld had failed.
The airplane sustained substantial damage to the vertical stabilizer, the rudder and right upper wing spar.