What happened
While entering the traffic pattern, the pilot observed that the airport windsock indicated variable winds between 10 and 15 knots. During the landing roll, the tailwheel equipped airplane was approximately halfway down the runway when it encountered a gust of wind. This gust impacted the tail, causing the aircraft to veer to the right of the runway centerline.
In an attempt to regain control, the pilot was unable to prevent the right main landing gear from collapsing. Consequently, the right wing contacted the terrain, and the aircraft came to rest off the right side of the runway. The pilot was not injured during the event.
The investigation
The pilot reported that there were no mechanical malfunctions or engine failures occurring prior to the impact.