On 20 November 1974 at 07:54 local time, Lufthansa Flight 540, a Boeing 747-100 (registered D-ABYB), lost power and crashed shortly after take-off at Jomo Kenyatta International Airport in what was the first air accident involving a Boeing 747. 55 out of the 140 passengers and 4 out of the 17 crew lost their lives, making it the worst accident in the history of the airline.[146]