Accident Details
Approximately 35 miles southeast of the destination airport, the pilot received local weather information and requested an instrument landing system (ILS) approach to runway 31. After descending to the decision height, the pilot observed the runway end identifier lights and continued the approach. Subsequently, the pilot saw the visual approach slope indicator (VASI) lights and the runway lights, and decided to land.
The airplane touched down about 1,000 feet down the runway. According to the pilot, when the tires contacted the runway, the brakes would skid and then "grab," alternating between skidding and grabbing. The pilot chose not to execute a go-around, remaining on the runway and attempting to stop the airplane. The airplane continued into snow-covered terrain off the departure end of the runway, where it contacted an ILS antenna pylon. The impact resulted in substantial damage to the left wing spar.
Pilot Report
The pilot reported that the downsloping runway was ice-covered and that the landing was conducted with an approximate 8-knot tailwind. The pilot stated there were no mechanical failures or malfunctions of the airplane. Additionally, the pilot indicated having no prior knowledge of the braking action on the runway before landing.
Damage
The only damage reported was substantial damage to the left wing spar resulting from contact with the ILS antenna pylon. No other damage to the airplane was mentioned.