1956    A TWA Super Constellation and a United Airlines DC-7 (Flight 718) collide above the Grand Canyon in Arizona, United States, killing all 128 on board the two planes.

1967    Trans World Airlines Flight 553, a Douglas DC-9-15, crashes in a field in Concord Township, Ohio following a mid-air collision with a Beechcraft Baron, killing 26.

2001    Captain Bill Compton brings Trans World Airlines Flight 220, an MD-83, into St. Louis International Airport bringing to an end 76 years of TWA operations following TWA's purchase by American Airlines.