The pilot of the tailwheel-equipped airplane reported that, while en route, he decided to land to inspect the elevator trim. He added that he made multiple passes over a snow covered airstrip and believed the snow to be about 2-3" deep. During the landing roll, the airplane slowed and began to sink into the snow. The pilot attempted to go around, but the airplane nosed over.

The airplane sustained substantial damage to the left wing.

The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.