On April 27, 1977, two 747's collide on the single runway at the Tenerife airport. Delayed by fog, the Pam Am pilot decides he has waited long enough and starts down the runway. Only when it is too late does he realize there is a KLM 747 also taxiing for take-off. He tries to fly over the KLM plane but rips into it causing a massive explosion. The Pan Am struggles to take off, but explodes at the end of the runway. 583 killed, 61 survivors in the worst accident in aviation history.

On April 27, 1977, two 747's collide on the single runway at the Tenerife airport. Delayed by fog, the Pam Am pilot decides he has waited long enough and starts down the runway. Only when it is too late does he realize there is a KLM 747 also taxiing for take-off. He tries to fly over the KLM plane but rips into it causing a massive explosion. The Pan Am struggles to take off, but explodes at the end of the runway. 583 killed, 61 survivors in the worst accident in aviation history.