10. Korean Air Lines flight KL007
This incident took place on September 1, 1983 because of the lack of alertness and sharpness of the cabin crew. This plane was shot down by Soviet Union because somehow the place managed to drift into the Soviet airspace and the pilot didn’t notice this thing. This carelessness of the pilot came to be very expensive for all the passengers. This 747 was carrying 269 passengers and it was shot down near Sakhalin Island in the North Pacific.