Two perfectly serviceable Boeing 747s crashed into each other on the runway killing 583 people in 1977. In another incident, the pilots shut down the wrong engine, and 47 people were killed when the aircraft crashed... But what has that got to do with diving?
In 1977, two Boeing 747s were on the runway at Los Rodeos Airport, Tenerife. The plane from KLM was lined up, ready to take off, while the plane from Pan-Am was taxiing down the runway towards the first, to exit, turn around and await the former’s departure.