What was found
(CAN) DURING THE TAKEOFF RUN ON ICE THE AIRCRAFT CROSSED OVER SOME SMALL SNOWMOBILE TRACKS. WHEN THE AIRCRAFT BECAME AIRBORNE THE RIGHT SKI SEPARATED. THE SKI, STILL ATTACHED BY THE SAFETY WIRE, FLAILED AROUND CAUSING SUBSTANTIAL DAMAGE TO THE BELLY AND RT STRUTS. EVENTUALLY THE FORWARD SAFETY WIRE FAILED AND THEN SWUNG AROUND TO BECOME LODGED BEHIND THE LT SKI, BUT NOT BEFORE STRIKING THE REAR FUSELAGE AND DAMAGING THE FABRIC AND REAR BULKHEADS. SUBSTANTIAL AIRCRAFT DAMAGE UPON LANDING AND RESULTING GROUND LOOP.