Military

Few minutes after takeoff from Iquique Airport, while climbing, the airplane went out of control and crashed into the sea some 15 km offshore. Both crew members were killed.

Shortly after takeoff from Katum Airfield, the airplane was hit by enemy fire. The pilot decided to divert to Tây Ninh Airfield for an emergency landing when the engine number one caught fire. It was shot down and its propeller was feathered. Upon landing, the left wing was on fire and the left main gear still retracted. The airplane came to rest and was later destroyed by fire while all five crew members escaped uninjured.

For unknown reason, the airplane landed hard, causing the undercarriage to be torn off. The airplane then slid for several yards and came to rest. There were no casualties.

Crashed in unknown circumstances at Luanda Airport. There were no casualties.

On final approach to Đắk Tô Airfield, the airplane was hit by enemy fire, stalled and crashed in flames short of runway threshold. All 30 occupants were rescued while the aircraft was destroyed.

For unknown reason, the floatplane landed hard off Gdańsk and sank. There were no casualties.

On final approach to Bedford-Hanscom Field AFB, the crew failed to realize his altitude was too low when the airplane struck trees, stalled and crashed in flames in a wooded area located less than a mile from the runway threshold. All three crew members were seriously injured and the aircraft was destroyed by a post crash fire.

Shortly after takeoff from Khâm Đức Airfield, while in initial climb, the aircraft was shot down by North-Vietnamese soldiers who were conducting an assault of the airbase. The aircraft went out of control and crashed in a huge explosion some 4 km east of the airfield. All 155 occupants, South-Vietnamese soldiers with their wife and children, were killed. Up to date, this was the worst crash by the USAF and the worst in Vietnam.
Crew:
Maj Bernard Ludwig Bucher,
1st Lt Stephan Craig Moreland,
S/Sgt Frank Monroe Hepler,
A1C George Wendell Long,
Maj John Lee McElroy,
Cpt Warren Robert Orr (was among the passenger).

On approach to Khâm Đức Airfield, the aircraft was hit by small artillery and hydraulic systems failed. After touch down, the aircraft was uncontrollable and veered off runway before hitting a parked helicopter. All five crewmen were unhurt but the aircraft was later intentionally destroyed. Crew, from the 21st squadron, was flying to Khâm Đức to evacuate troops on an emergency evacuation process of the camp.
Crew:
Captain Delmore, pilot,
Joe Donahue, copilot.
Thanks to Bill Schneider from the Khâm Đức Group, who added the following comment: the aircraft was guided off the runway on purpose by superior flying skills. It did not catch on fire at that time but was destroyed for good by USAF fighters that destroyed all remaining assets on the ground, including the SF Camp, engineer equipment and anything that could be of any value to the North Vietnam Army. Delmore's crew was picked up just a few minutes later by a USMC CH-46 helicopter.

While approaching Got El Afrag Airstrip, the crew request the permission to complete a low pass to confirm if the landing gear were down. At low height, the pilot made a turn to the right when the right wing struck the ground, causing the aircraft to crash and burn. All 11 occupants were killed.