Lockheed L-188 Electra

Zantop ground personnel completed the loading of Flight 931 at 00:40. All cargo was bulk loaded and tied down on the right side of the airplane for the full length of the cargo compartment. Flight 931 departed the gate at Baltimore/Washington International Airport at 01:05 and took off on runway 28 at 01:10. At 01:11:42, Flight 931 contacted Baltimore departure control and was cleared to 13,000 feet. After switching to Washington ARTCC, the flight was cleared further FL220. At 01:32 a no. 2 gyro malfunction made the crew select the no. 1 gyro to drive both approach horizons and the problem appeared resolved. At 01:43:09, Cleveland ARTCC cleared Flight 931 direct to the Dryer VOR. After the turn to the Dryer VOR, the first officer’s approach horizon may have displayed incorrect pitch and roll information. The flightcrew may have received conflicting pitch and roll information from the two approach horizons as they attempted to recover from an unusual attitude. The flightcrew overstressed the airplane in an attempt to recover from the unusual attitude as the aircraft spiralled down. The Electra broke up and falling wreckage damaged some houses; however, most of the wreckage fell in uninhabited, wooded areas.

Prior to takeoff from Guatemala City to Tegucigalpa, one of the engine failed as well as a generator. Passengers were disembarked and the captain decided to fly to Tegucigalpa on three engines only. Less than one minute after takeoff, while climbing, the pilot reported a critical situation and requested an immediate return. While making a last turn, the airplane lost height and crashed on a residential area located 1,500 meters from the airport, bursting into flames. All six occupants were killed and 38 people on ground were injured. The aircraft and several houses were destroyed.

The four engine airplane departed Ogden-Hill AFB at 0445LT on a cargo flight to Nellis AFB on behalf of the USAF, carrying three crew members and 27,552 lbs of cargo. While climbing from 12,000 to 13,000 feet, the flight indicated to Salt Lake departure control that they had lost all electrical power, the flight requested no-gyro vectors to visual flight conditions and clearance for an immediate descent to a lower altitude. During the descent, the aircraft attained a high airspeed and high rate of descent and disintegrated in flight. The three crewmembers were killed and the aircraft was destroyed. The wreckage was dispersed along a path about 1 1/2 miles long on an abandoned airport located about 4 nmi south of the Salt Lake City International Airport.

On final approach to Inigok Airstrip by night, the pilot-in-command failed to realize his altitude was insufficient when the four engine airplane struck obstacle on final approach, undershot and crashed in flames. All 15 occupants escaped with minor injuries while the aircraft was damaged beyond repair.

The takeoff procedure was abandoned after the propeller on engine n°2 autofeathered. During the second takeoff, while in initial climb, the airplane entered an uncontrolled descent and crashed in flames by the runway. All three crew members were killed.

The four engine airplane departed San José-Juan Santamaría Airport at 1400LT on a cargo flight to Caracas, carrying one passenger, three crew members and a load of 16,330 kilos of frozen meat. While in cruising altitude over the Caribbean Sea, the airplane plunged into the sea in unknown circumstances, about 65 km east of Bocas del Toro, Panama. SAR operations were initiated but eventually suspended few days later as no trace of the airplane nor the four occupants was found.

The aircraft lifted off the 10,015-foot runway about 7,500 feet down the runway. During or just after liftoff the n°3 propeller was feathered. The aircraft climbed to 100 feet while yawing to the right. The crew retracted the landing gear and flaps before the aircraft reached the apex of the climb. It then rotated to a nose-high attitude, appeared to become laterally unstable, and struck the rising terrain in a tail-low attitude. Impact was about 4,300 feet beyond the end of the runway. The aft portion of the aircraft fuselage dragged along the ground for 220 feet in a right wing down attitude, after which the aircraft slid off the brow of a 13-foot embankment, crashed through the chain link perimeter fence at Agana NAS, crossed a highway, and burst into flames. The aircraft came to rest in an open area between residential areas, about 4,900 feet beyond the end of runway 06L. As the aircraft slid across the highway, it struck an automobile on the highway; the driver of the car was killed. A woman and her son, who were standing outside their residence just south of the impact site, were seriously burned by the heat of the burning fuel and were seriously injured by flying debris. All 45 occupants on board the Electra were killed.

After landing on an frozen lake cleared of snow, the four engine airplane ran off the end of runway, lost its right main gear and came to rest in flames. All three crew members escaped uninjured while the aircraft was damaged beyond repair.

Just after liftoff at Bogotá-El Dorado Airport, while in initial climb, the four engine airplane adopted a nose up attitude. With a high angle of attack, the airplane stalled and banked right before crashing in flames onto the tarmac where it collided with a parked Aerocosta Colombia DC-6F registered HK-756. Both aircraft were destroyed by fire and while the DC-6 was empty, two of the four crew members on board the Electra were killed.

On approach to Deadhorse Airport, the crew encountered poor weather conditions when the airplane struck the runway surface 1,000 feet past its threshold. After initial impact, the left wing was torn off and the airplane went out of control. On a snow and ice covered runway, the airplane veered off runway to the left before coming to rest in flames few hundred yards further. All three crew members escaped uninjured while the aircraft was destroyed.