23 fatalities

Aviation Accident: Tail Strike and Crash After Engine Failure (145927)

Đà Nẵng, VietnamLanding (descent or approach)

On March 16, 1970, a Lockheed C-121 Super Constellation (registration 145927) operated by United States Navy - USN was involved in an aviation accident near Đà Nẵng, Vietnam during landing or approach. 23 people were killed. Investigators recorded the probable cause as: The copilot, who was in command, leveled the aircraft in an inappropriate position on short final, and the captain failed to properly supervise the operations to correct the situation in time. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 8 related events involving the same aircraft type or operator are linked below.

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary reportUpdated 2026-06-12Data APIEditorial standards

An aircraft crashed after an in-flight engine shutdown and an unstable final approach. The tail struck the runway at about 40 feet, killing 23 occupants and injuring 10 others.

Incident Overview and Sequence of Events During the flight, engine number four was shut down due to a generator overheating. On final approach, the aircraft became unstable and lost altitude. The crew was aware that the first 1,000 feet of runway 35L were unserviceable for repairs, prompting them to increase power on the three remaining engines. At approximately 40 feet, the tail stalled and struck the runway surface. The aircraft then crashed in flames and hit several pieces of ground equipment. ## Casualties and Damage The crash resulted in 23 occupant fatalities and injuries to eight occupants and two people on the ground. The impact destroyed two trucks, an F-4D Phantom, and several military equipment items. The deceased included Lt Cdr Harvey C. K. Aiua, Lt Cdr Harry C. Martin, Lt Robin A. Pearce, Lt George L. Morningstar, Lt(jg) James M. Masters, Lt(jg) Charles E. Pressler, Lt(jg) Jean P. Souzon, CO0 William J. Risse, P01 Larry O. Marchbank, P01 Arthur D. Simmons, P01 Donald W. Wilson, P02 Floyd E. Andrus, P02 Gregory J. Asbeck, P02 William P. Bletsch, P02 Guy T. Denton, P02 Joseph S. Saukaitis, P02 John S. Schaefer, P02 Stuart J. Scruggs, P02 Barry M. Searby, P03 John M. Birch, P03 Thurle E. Case, P03 Ben A. hughes, and P03 Ralph S. Purhum. ## Probable Cause The official findings indicated that the copilot, who was in command at the time, leveled the aircraft in an inappropriate position on short final. The captain failed to properly supervise the copilot's operations, which prevented timely correction of the situation.