While landing Arriving on runway 3 in a snow storm on December 20 , 1983 , it struck Attack a snow plow on the runway .

The impact ripped Destroying the right wing from the plane destroying Destroying the snow plow and killing Killing its driver .

The snow plow , call sign Sweeper 7 , had been routinely directed Aiming to exit the runway to accommodate arrivals and departures .

Shortly after touchdown Motion when they entered Arriving the snow cloud the plane struck Attack the snow plow .