Wurtsmith AFB SAC Intrusion 1975

On October 30, 1975, Wurtsmith Air Force Base in Michigan — home of the 379th Bombardment Wing flying B-52s on nuclear alert — was overflown by an unidentified luminous object during the remarkable two-week wave of SAC base intrusions that autumn. A B-52H crew airborne on a training mission observed and reported an orb pacing their aircraft before departing toward the base. Ground personnel confirmed the object over the nuclear alert pad area. Security police in KC-135 tanker alert areas reported radar gun and communications interference during the overflight. The incident was one of seven documented SAC nuclear base intrusions in October–November 1975 — including Loring, Malmstrom, Minot, Wurtsmith, Cannon, and Fairchild — that prompted a Joint Chiefs of Staff inquiry. Declassified FOIA documents confirm the scope of the 1975 wave and the inability of NORAD to intercept or identify the intruding craft.