Douglas C-54 Skymaster

The four engine aircraft was completing a flight from Burbank to the secret base 51 (aka Homey) located near Groom Lake, Nevada, carrying a crew of four and 10 passengers, atomistics, engineers and scientists who were taking part to the Lockheed U-2 reconnaissance aircraft building program. Due to the fact that the flight was secret, the crew did not have any radio contact with ATC. Enroute, the crew encountered poor weather conditions with thunderstorm activity and low visibility. While flying in clouds at an altitude of 11,300 feet, the aircraft hit the slope of Mt Charleston about 50 feet below the summit, killing all 14 occupants.

While in cruising altitude, the captain informed ATC that an engine caught fire and elected to divert to the nearest airport. Few minutes later, the airplane hit the slope of Peak Oiriruma-Viñac located in the region of Viñac. Fourteen people were rescued while 21 others, among them all five crew members, were killed.

Trip 7413-23 originated at Travis Air Force Base, California, its destination Tokyo, Japan, with scheduled refueling stops at Honolulu and Wake Island. The cargo load of 15,33 pounds was properly secured and distributed relative to the center of gravity. The flight departed Travis Air Force Base at 0958 and arrived at Honolulu at 2211, September 23, 1955, without incident. The crew consisted of Captain A. J. Machado. First Off leer W. F. Gin, Copilot R. C. Hightower. and Navigators R. C. Olsen and D. Ventresca. No maintenance work was required at Honolulu and the aircraft was refueled to 3,016 gallons for the flight to Wake Island. There was no offloading or loading of cargo. Gross weight of the aircraft at the time of takeoff from Honolulu was 72.993 pounds; there was no change in the flight crew. The flight departed Honolulu at 0013, September 24, 1955, on an IFR (Instrument Plight Rules) flight plan to Wake Airport via Green 9, Rhumbline Track, to maintain 8,000 feet. Routine hourly position, fuel remaining and weather reports ware made to Honolulu ARTC (Air Route Traffic Center) as the flight progressed and at 0630 control of the flight was transferred to Wake Island ARTC. At 0633 an emergency was declared to Wake ARTC, the flight advising of loss of power in three engines and inability to return to Honolulu. The aircraft was ditched during darkness at approximately 0641 at position 20 degrees 20' N. latitude 175 degrees 45' W. longitude. Neither Wake nor Honolulu radio was able to maintain contact with the aircraft; therefore Air Search and Rescue was alerted and an extensive search was commenced using both aircraft and surface vessels. At approximately 1318 on September 25 the SS Steel Advocate sighted and picked up Captain Machado and Copilot Hightower who were floating in life jackets. The two survivors reported that Navigator Ventresca went down with the aircraft and First Officer Gin and Navigator Olsen died while in the water. Weather briefing at Honolulu indicated a low pressure trough to be crossed at about 165 degrees W. longitude; there were no fronts to be crossed. The forecast indicated that scattered cumulus clouds would prevail over the intended route with tops mostly 12,000 feet and lower. Review of the weather indicates no rain showers at the time and place of ditching. Sea swells in the ditching area wore probably 4 to 6 feet high with the sea surface intermittently in deep shadow and faintly illuminated by the moon, which was in its first quarter.

On landing at Fort Lamy Airport, the four engine aircraft went out of control, veered off runway and came to rest upside down in flames. All three crew members were killed.

The aircraft was performing a flight from Tokyo-Haneda to Hong Kong with an intermediate stop at Kadena AFB, Okinawa. While cruising at an altitude of 9,000 feet over Taiwan in reduced visibility, the four engine aircraft hit the slope of a mountain located 32 km northwest of Taitung. The airplane was destroyed by impact forces and all 14 occupants have been killed.

The crew was engaged in a transatlantic flight from Lajes to Hamilton, Bermuda. Enroute, the captain informed ground that he was short of fuel and was unable to reach Hamilton. He reduced his altitude and ditched the airplane near the Echo weather station. A USCG crew was able to evacuate all eight crew members while the aircraft sank and was lost.

While cruising over the China Sea on a flight from Bangkok to Hong Kong, the aircraft was attacked and shot down by two Chinese Air Force Lavochkin La-7. Both engines number one and four caught fire. While the radio operator declared an emergency to ATC based at Hong Kong-Kai Tak Airport, the pilot decided to reduce his altitude in an attempt to make an emergency landing. While descending to an altitude of 2,000 feet, the right aileron was sheared off. The captain elected to ditch the aircraft that eventually crashed into the sea off the city of Sanya, on the south coast of Hainan Island. Two USAF Douglas AD-4 Skyraider were dispatched to locate the crash site but both were also attacked by the Chinese fighters. Later, a USN Albatross was eventually able to land in the area where eight people, two crew members and six passengers, were rescued. Ten other occupants were killed and the aircraft sank and was lost.

While cruising by night at an altitude of 5,500 feet in good weather conditions, the engine number three caught fire. The crew feathered the propeller and received the permission to divert to Gage municipal Airport for an emergency landing. Following a normal landing, the right main gear collapsed. The aircraft veered off runway and came to rest in flames. All 82 occupants were able to evacuate safely while the aircraft was totally destroyed by fire.

On final approach to Hanoi-Gia Lâm Airport, the aircraft was too low and hit trees before crashing into the Red River, killing all four crew members.

The aircraft left Santa Cruz de la Sierra (Bolivia) on a scheduled airline flight and landed without incident at Salta 2 hours and 30 minutes later. It took off from Salta airport for Córdoba at approximately 1645LT. At take-off the aircraft was carrying a total load of 3,512 kg. The route forecast as far as Marcos Juarez was as follows: partly cloudy, visibility 15 km, stratocumulus cloud 7/8 at 800 meters, altocumulus 3/8 at 3'000 meters, upper wind 20' 13/15 knots. The aircraft contacted Córdoba Airport control tower at 1856LT and was cleared to enter the airport zone. At 1925LT it passed over the radio beacon and the control tower provided the following weather information: horizontal visibility 6 km, average height of cloud 250 meters, pressure for altimeter correction 30 inches, surface wind SE, 10 to 11 knots. The approach to the airport was begun under IFR conditions, at an indicated speed of mph and at an altitude of 5, 100 feet above the radio range (the requirement is 4,400 feet). aircraft flew a course to the north for 1 minute 50 seconds, with 15° flaps and then, continuing the descent, it turned to the right on a 45° course, flying in this direction for 1 minute more. The altitude just before the turn was 3, 100 feet. It then turned to the left on a course of 225°. When the aircraft direction finder indicated 40° to the left, the compass was set at 180° and the direction finder maintained at O°. At that moment, according to the evidence, the instruments indicated an altitude of 2, 980 feet. The aircraft flew at this altitude for 30 seconds, and the engine speed was reduced for landing. It continued to descend for another minute 20 seconds until the altimeter indicated 2, 200 feet. At that instant, according to the statements made by the pilot-in-command and the copilot, the aircraft came into contact with the ground. The aircraft was finishing the final straight-in approach to the airport and was aligned exactly with runway 17. All 41 occupants were evacuated safely, only both pilots were slightly injured. The aircraft was destroyed.