The pilot of the tailwheel-equipped airplane reported that he made a normal three-point landing, shortly after touchdown the airplane veered to the left, then veered to the right. The pilot further reported that he applied power in an attempt to regain control, however the airplane veered back to the left and he reduced power as the airplane departed the runway. The airplane ground looped and the right wing impacted terrain causing substantial damage to the right aileron.
The pilot reported there were no preimpact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation.