20101225053939A

Aircraft departed traverse city airport (ktvc), in traverse city, Michigan, on an instrument flight rules (IFR) flight plan to the Oakland Troy airport (kvll), in Troy, Michigan at 11:41AM local time. The pilot indicated that no icing had been reported with the exception of a single pilot report (PIREP) of light rime [icing] near saginaw, Michigan. The pilot planned to cruise above the potential icing conditions. Flight data indicates a cruise altitude of 7,000 feet MSL. The descent was initiated at approximately 12:14AM local time. The aircraft was equipped de-icing system on the wings, horizontal stabilizer, propeller, and canopy. At some point during cruise before entering instrument conditions, the pilot became aware that the wing and tail leading edge de-icing system was indicating a failure. The pilot attempted a reset with no success. He made air traffic control aware of his situation and requested a descent. The pilot reported experiencing light rime ice during descent from 4,500 feet to 2,700 feet MSL, after which point, he reported visual meteorological conditions (VMC), but with residual amount of approximately 6-10 millimeters (mm) of rime ice on the leading edge of the wings. The pilot cancelled the IFR clearance with detroit approach control (TRACON) at approximately 12:25PM local time and then proceeded visually to the airport, entering and flying a visual traffic pattern for runway 27. The pilot indicated that with the airframe ice, he maintained a higher airspeed on final approach. While over the runway threshold, the pilot experienced an uncommanded counterclockwise roll, causing the left main gear to forcefully contact the runway with a "significant side-load." The left main gear reportedly collapsed at that point, causing a loss of control. The nose gear collapsed and the propeller struck the runway. The right main landing gear also collapsed. Initial contact with the runway occurred approximately 85 feet from the runway edge (threshold) near the centerline. The plane came to rest approximately 1,040 feet from the threshold of runway 27 along the north side of the runway. The airplane stopped oriented on an approximate heading of 160 degrees, facing the center of the runway. The aircraft sustained substantial damage. The left main landing gear strut had been driven through the upper surface of the left wing. The left main wing fuel tank was punctured and showed evidence of fuel leakage. The left fowler flap was separated from the left wing at the outboard attach point. Two of the propeller blades had rearward 90 degree bends along the tip and the third propeller blade was bent 30-40DEGREES at the midpoint and 90 degrees at the tip rearward. The nose gear as well as the right main landing gear was sheared off with the struts intact. There was damage to the underside of the right wing tip area as well as the underside of the engine compartment and main fuselage; the upper engine cowling revealing scoring from contact with the aft propeller spinner. The rudder horn was broken off, as well as material in the area of the left side mid hinge.