What Caused The Crash Of BOAC Flight 911?

On March 5, 1966, BOAC (British Overseas Airways Corporation), flight 911, was a round-the-world flight that disintegrated after take-off from Tokyo’s Haneda Airport. Severe clear-air turbulence led to the be the underlying factor in the aircraft’s crash, which killed all 113 passengers and 11 crew members onboard.