United States of America

En route on a cargo flight from New York-LaGuardia Airport to Pittsburgh, while cruising by night in poor weather conditions, the twin engine airplane entered an uncontrolled descent and crashed on a mountain located near Troxelville, Pennsylvania. The wreckage was found three days later and the pilot, sole on board, was killed. At the time of the accident, the visibility was reduced due to foggy conditions and weather was poor with icing conditions.

At 2219LT, while approaching Bridgeport by night on a flight from Worcester, the pilot reported to ATC he was low on fuel. Three minutes later, after becoming lost, the airplane descended and crashed into the sea off Bridgeport. SAR operations were initiated and a dead body was found a day later. All three other occupants as well as the wreckage were never found.

On final approach to Fort Pierce-St Lucie-County Airport, the pilot initiated an evasive maneuver to avoid collision with another aircraft turning in front of him. Due to insufficient speed, the twin engine airplane stalled and crashed. All three occupants were seriously injured.

Crashed in unknown circumstances near Naples while engaged in a contraband flight. The pilot, sole on board, was not recovered. The airplane was destroyed in the accident.

While cruising by night on a regional flight out from Charleston, both engines failed. The pilot reduced his altitude in an attempt to make an emergency landing when the airplane crashed onto a house in Salley. Both occupants were seriously injured while there were no casualties on the ground. The aircraft was destroyed.

On approach to Gowers Corner while on an illegal flight from Carata, Colombia, an engine failed. The pilot lost control of the airplane that crashed in a pasture. The airplane was destroyed and the pilot, sole on board, was killed.

This aircraft was delivered on 17 October to TAB1 at Wagner Field, a disused auxiliary airfield at Eglin Air Force Base, Florida. Between 19 October and 28 October, numerous flights were made testing various aspects, including the double-slotted flaps system, which enabled the C-130 to fly at 85 knots on final approach at a very steep eight-degree glide slope. All aspects worked flawlessly, and a full profile test was scheduled for 29 October. The test's takeoff phase was executed flawlessly, setting a number of short takeoff records. The Lockheed test crew then assessed that the computer used to command the firing of the rockets during the landing sequence needed further calibration, and elected to manually input commands. The reverse-mounted (forward-facing) eight ASROC rockets for decelerating the aircraft's forward speed were situated in pairs on the fuselage's upper curvature behind the cockpit, and at the midpoint of each side of the fuselage beneath the uppers. Testing had determined that the upper pairs, fired sequentially, could be ignited while still airborne (specifically, at 20 feet), but that the lower pairs could only be fired after the aircraft was on the ground, with the descent-braking rockets also firing during the sequence. The flight engineer, blinded by the firing of the upper deceleration rockets, thought the aircraft was on the runway and fired the lower set early. The descent-braking rockets did not fire at all. Later unofficial disclaimers allegedly made by some of the Lockheed test crew's members asserted that the lower rockets fired themselves through an undetermined computer or electrical malfunction, which at the same time failed to fire the descent-braking rockets. As a result, the aircraft's forward flight was immediately reduced to nearly zero, dropping it hard to the runway and breaking the starboard wing between the third and fourth engines. During rollout, the trailing wing ignited a fire, but a medical evacuation helicopter dispersed the flame and crash response teams extinguished the fire within eight seconds of the aircraft stopping, enabling the crew to exit the aircraft safely. 74-1683 was dismantled and buried on-site for security reasons, but most of its unique systems were salvaged.

En route from Barstow to Lake City, the pilot informed ATC about the failure of the right engine and was cleared to divert to Gainesville Airport. On final, in a limited visibility due to fog, the twin engine airplane collided with electronic towers and crashed in a field, bursting into flames. All three occupants were killed.

While in normal cruise on a flight from Panama City to Fort Myers, the twin engine airplane entered an uncontrolled descent. Due to overload failure, it partially disintegrated in the air, losing its left wing and tail section before crashing in an uninhabited area located near Wilma. Both occupants were killed.

After takeoff from Buffalo Airport in blowing snow, the twin engine airplane encountered difficulties to maintain a positive rate of climb. It collided with ground and subsequently crashed. All four occupants were killed.