Six hours into a routine patrol mission over the Arctic, smoke began filling the cockpit of a B-52 Stratofortress carrying four hydrogen bombs. Captain John Haug and his crew fought to reach Thule Air Base in Greenland, but the fire consumed the bomber's electrical systems. At 3:39 p.m. on January 21, 1968, the aircraft slammed into the ice seven miles west of the base. The impact carved a 160-foot gash across the frozen bay. All four thermonuclear weapons detonated their conventional high

Tag-uri: accident