Flight

While cruising at an altitude of 10,000 feet on a survey flight, one of the engine failed. The crew was able to feather its propeller but decided to reduce his altitude in an attempt to increase the performances of the remaining engine. While descending, the pilot-in-command encountered low clouds and limited visibility when the airplane struck trees, stalled and crashed in a dense wooded area. While both passengers were rescued, all three crew members were killed.

The aircraft was engaged in a mission consisting of atmospheric research. En route, in unknown circumstances, the airplane went out of control and crashed into a lake located in the region of Houghton, Michigan. SAR operations were conducted but eventually suspended few days later as no trace of the aircraft nor the three occupants was found.

The crew was returning to his base at Ching Chuan Kang near Taichung, Taiwan, following a refuelling mission over South Vietnam. While cruising by night and in marginal weather conditions, the airplane struck the slope of a mountain (7,300 feet high) located about 75 km from Ching Chuan Kang AFB. The wreckage was found 1,500 feet below the summit and all six crew members were killed.

While cruising at an altitude of 9,000 feet on a flight from Saigon to Đà Nẵng, the right engine failed. The crew was unable to feather the propeller nor to maintain the assigned altitude so the captain decided to divert to Buôn Ma Thuột Airport. While descending, the airplane went out of control and crashed at an altitude of 700 meters on a plateau located 18 km from the airport. The aircraft was destroyed and all 23 occupants were killed, among them two US civilians.
Crew:
Lt Col Howard Elmer Van Vliet,
Lt Col Robert Brooks Richardson,
Lt Col Council Lee Royal,
Maj Gerald Eugene Burgener,
Maj Basil Lincoln Ciriello,
Maj Gerald Dean Ziehe,
Cpt Gayland Omer Scott,
M/Sgt William Parker Bowman,
T/Sgt Donald William Bruck,
T/Sgt Billy Day Morris,
T/Sgt John Derral Thomas,
S/Sgt Eugene William Hendricks.

The aircraft was completing a liaison flight to Izmir-Cumaovasi Airport when it struck the slope of a mountain located in the region of Akhisar. All 10 occupants were killed.

Crashed in unknown circumstances while completing a topdressing mission. c/n TBC

Crashed in unknown circumstances in the Hàm Tân district, South Vietnam.

Few minutes after takeoff from Mary Airport, while cruising at an altitude of 4,200 meters, the crew informed ATC about an engine failure and was cleared to return for a safe landing. While descending to Mary, the crew realize he could not reach the airport so he attempted a belly landing in an open field. The aircraft slid for several yards and came to rest. There were no injuries but the aircraft was written off.

While flying at low height, the pilot lost control of the seaplane that crashed into the sea few dozen yards off Avalon. Few debris were found floating on water but the pilot's body was never found.

On a flight from Zyryanka to Seymchan in support of the 121st geodetic expedition, the crew encountered below-minima weather conditions due to low clouds. The crew failed to return and deviated from the prescribed flight path by 25 km and descended in clouds over mountainous terrain. In such conditions, the aircraft crashed at a height of some 1,200 metres into the steep slope of Mount Khapchagai (1,554 metres high) located 61 km northwest of Seymchan. One of the 2 pilots and 4 of the 6 passengers were killed and all survivors were seriously injured. The wreckage and the survivors were found a day later, on 23SEP68.