On March 27, 1977, two Boeing 747 passenger jets, operating KLM Flight 4805 and Pan Am Flight 1736, collided on the runway at Los Rodeos Airport (now Tenerife North Airport) on the Spanish island of Tenerife. Resulting in 583 fatalities, this accident is the deadliest in aviation history.
Watch How KLM airlines Flight 4805 and PanAm Airlines Flight 1736 Made the deadliest Plane Crash in history