TWA and United Airlines Midair Collision Over Grand Canyon, June 30, 1956
A TWA Super Constellation and a United Airlines DC-7 collide above the Grand Canyon in Arizona and crash, killing all 128 on board both airliners. Date: June 30, 1956 Read more on Wikipedia β π Other events on June 30 π Events on this day in 1956 π On This Day (Today)