329 : On June 23 , 1985 , Air India Flight 182 , a Boeing 747-237B , crashed off the southwest coast of Ireland when a bomb exploded in the cargo hold . All 307 passengers and 22 crew members died . One passenger had checked in as " M. Singh " . Singh did not board the flight . His suitcase containing the bomb was loaded onto the plane , however . " Mr Singh " was never identified or captured . It was later determined Sikh extremists were behind the bombing as a retaliation for the Indian government 's attack on the Golden Temple in the city of Amritsar , which is very important for the Sikhs . This was , at the time , the deadliest terrorist attack involving an airplane
Air India Flight 182
Air India Flight 182
Aviation accidents and incidents