This made for television disaster movie aired on the exact same day of the real life Tenerife disaster in the Canary Islands. On March 27, 1977 two jumbo passenger jets (Pan Am Flight 1736 and KLM Flight 4805) collided on the runway in heavy fog at Los Rodeos Airport in Tenerife. The fatal crash killed 583 people from the two planes and still stands (as of 2015) as the worst disaster in aviation history.