star dust ( registration unk ) was a british south american airways ( bsaa ) avro lancastrian airliner which crashed Catastrophe into mount tupungato in the argentine andes on 2 august 1947 , during a flight from buenos aires to santiago , chile .

mistakenly believing Know they had already cleared Emptying the mountain tops , they started Process_start their descent Motion_directional when they were in fact still behind unk peaks , and `` star dust '' crashed Catastrophe into mount tupungato , killing Killing all aboard and burying itself in snow and ice .