270 : On December 21 , 1988 , Pan Am Flight 103 , a Boeing 747 – 121 bound for New York – JFK from London – Heathrow with continued service to Detroit , was destroyed by a terrorist bomb over the town of Lockerbie , Scotland . All 243 passengers and 16 crew , and 11 people on the ground ( all residents of Sherwood Crescent , Lockerbie ) , died , making it the worst terrorist attack involving an aircraft in the UK and the deadliest terrorist attack on British soil . Following the crash , the Federal Aviation Administration imposed new security measures on American airlines flying out of 103 airports in Western Europe and the Middle East
Pan Am Flight 103
Pan Am Flight 103
Aviation accidents and incidents