A United States Air Force Lockheed C-130B Hercules aircraft was shot down on May 12, 1968, during the Battle of Kham Duc in Vietnam.

The aircraft, commanded by Major Bernard L. Bucher, was participating in the evacuation of South Vietnamese civilians from the Kham Duc campsite that was under attack.

The C-130 approached the Kham Duc airstrip from the south and managed to land despite taking hits from opposing North Vietnamese forces.

Once the aircraft was full, Major Bucher proceeded to take off in a northward direction, unaware that the North Vietnamese were concentrated in that area.

According to eyewitness reports, the aircraft, under intense anti-aircraft fire from 12.7mm and 14.5mm heavy machine guns, shook violently out of control, crashed into a nearby ravine less than a mile (1.6 km) from the end of the airstrip, and burned, killing all of the evacuees, the Special Forces officer, and the aircraft's crew of five.