As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) WASHER WAS NOT INSTALLED ON AXLE UPON INSTALLATION OF SKIS. THIS CAUSED SKI TO SLIDE OFF AXLE ON LANDING, RESULTING IN AN OVERSHOOT. THE SKI DANGLED FROM THE CABLES AND BEAT AGAINST THE FUSELAGE CAUSING FURTHER DAMAGE BEFORE BREAKING FREE. THE PILOT THEN CALLED AN EMERGENCY AND HAD EMERGENCY RESPONSE COME IN. THE AIRCRAFT WAS THEN LANDED WITHOUT FURTHER INCIDENT.