The accident occurred during a landing attempt on an ice and slush covered runway. The pilot reported that shortly after touchdown the airplane began veering toward the left side of the runway. He was unable to correct for the airplane's left swerve and it subsequently impacted a snowbank situated alongside the runway. The left wing's main and aft spars were substantially damaged during the accident. The pilot reported that there were no pre-impact mechanical malfunctions or failures that would have precluded normal operation of the airplane.