Lockheed C-130 Hercules

The crew was engaged in a night training flight out from Dyess AFB, Abilene. In flight, control was lost and the airplane crashed in unknown circumstances in an uninhabited area located in the region of Aspermont. A crew member was rescued while five others were killed.

The airplane was returning to Nha Trang following an airlift mission. In unclear circumstances, it appears the aircraft was shot down by enemy fire and crashed 25 km south of Cam Ranh Bay. All five crew members were killed.
Crew:
Cpt Jerome Joseph Smith,
1st Lt James Howard Graff,
1st Lt David Albert Thorpe,
S/Sgt Raymond Lee Wheeler,
A1C Billy Jack Clayton.

The crew was completing a supply mission between Vietnam and Taiwan. While cruising in poor weather conditions, the four engine aircraft struck the slope of a mountain located 16 km southeast of Chai, in the center of Taiwan. All eight occupants were killed, among them three passengers.
Crew:
Cpt William Shinn,
1st Lt John Bechacek,
1st Lt David Scovill,
A1C Wilbur Adkisson,
A1C Lucious Lunnie.

Crashed in unknown circumstances in a mountainous area, killing all 10 occupants.

The four engine aircraft was on its way from Cam Ranh Bay to Kadena AFB, Okinawa, carrying a crew of eight. While cruising along the Vietnam shore, about 72 km northeast of Nha Trang, the airplane suffered an in-flight explosion and crashed into the sea off Phú Hiệp. All eight crew members were killed.
Crew:
Lt Cdr Ralph Burton Cobbs,
Lt Donald Edwin Siegwarth,
Lt Clement Olin Stevenson,
Lt Edward Leon Romig,
AN M. J. Savoy,
YN2 Jack Ishum Dempsey,
ADJ2 Curtis David Collette,
ADR2 Stanley Jon Freng.

The crew departed Đà Nẵng Airport on a bombing mission over the Thanh Hoa bridge. Following an apparent uneventful mission, it is believed the aircraft crashed in unknown circumstances into the Sông Mã River. Nevertheless, no trace of the aircraft nor the eight crew member was ever found.
Crew:
Maj Thomas Franklin Case,
1st Lt Harold Jacob Zook,
Cpt Emmett Raymond McDonald,
Cpt Armon D. Shingledecker,
1st William Rothroc Edmondson,
S/Sgt Bobby Joe Alberton,
AM1C Philip Joseph Stickney,
AM1C Elroy Edwin Harworth.

On a flight from Rivers AFB, Manitoba, to North Battleford, a technical failure occurred on the front cargo door that detached in flight. The crew decided to reduce his altitude and to attempt an emergency landing. The aircraft eventually completed a belly landing in a field located near North Battleford, slid for several yards and came to rest. There were no injuries among the crew while the aircraft was considered as damaged beyond repair. After the accident, the engine number one could not be stopped, probably after being hit by debris.

On final approach to Pleiku Airport by night, the aircraft struck the ground few hundred yards short of runway and came to rest. Three crew members were killed while two others were injured. The aircraft was destroyed. The crew was completing one of his first rotation on this airport at the time of the accident. Visibility was poor due to the night and marginal weather conditions.
Lt Col Lee Bernard Tate,
1st Lt John Lawrence Banks,
A1C Ronald Charles Logan.

Due to a failure in the propeller pitch mechanism one of the engines' propellers could not be used to decelerate. The airplane swerved off the runway into a ditch, in an attempt to avoid a truck at the end of the runway. Damage was repairable, but the Hercules was damaged beyond repair when recovery crew attempted to tow the airplane using a tank and a steel cable through openings in the fuselage.
Source: Chris Hobson

The C-130B, assigned to the 813th Tactical Carrier Wing at Forbes AFB, flew from Évreux AFB (Eure, France) to Bardufoss to pick up troops who would participate in the NATO exercise Winter Express. In snowy weather around freezing temperature with poor visibility the Hercules crashed into Svanfjellet west of Bardufoss at night at a height of 2,650 feet on the island of Senja while approaching Bardufoss Air Station. The crash killed the entire crew, five officers and two enlisted men.
Source: ASN