Incident Overview
A pilot was landing a wheel/ski-equipped airplane on a frozen, wind-blown lake covered with ice and snow. Earlier that day, the pilot had established a landing area by laying ski tracks with a friend's ski-equipped airplane.
Sequence of Events
Upon touchdown, the airplane did not decelerate as anticipated and began to veer off the proposed landing area. While the pilot attempted to correct for the veer, the right ski struck a hole hidden underneath the snow and ice. The impact caused the right main landing gear leg to separate from the airplane.
Damage
The airplane sustained substantial damage to the right wing and aileron.
Pilot Report
The pilot reported no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.