Two Japan Airlines Jumbos in Near Miss (Japan, 2001)

TCAS (traffic collision avoidance systems) are now fitted to all airliners to alert pilots of the presence of other aircraft in their vicinity, warn them of any danger of collision, and, as a last resort, instruct them on what they must to do to avoid a collision.

Japan Airlines Flight 907/ Japan Airlines Flight 958, January 31, 2001

In terms of the number of lives lost, Japan Airlines holds the record for the worst-ever crash involving a single aircraft. The airline also almost claimed the record for the worst-ever midair collision, when two of the airline’s aircraft were involved in a near miss. Had they collided, the death toll could have been as high as 677.