Takeoff (climb)

The crew departed Guatemala City-La Aurora Airport on a local training flight. Shortly after takeoff from runway 02, while in initial climb, the aircraft entered a right turn then lost height and crashed near an industrial building located about 900 metres from the runway 20 threshold. The aircraft was destroyed by impact forces and a post crash fire. Both pilots escaped uninjured.

Shortly after takeoff from Acandí-Alcides Fernandez Airport, while in initial climb, the twin engine aircraft stalled and crashed in a house located in the district of Miramar, near the airport. The pilot and a passenger were killed and eight other occupants were injured. There were no victims on the ground and the aircraft was destroyed.

The crew was performing a flight from Malakal to Wau on behalf of the World Food Program. Shortly after takeoff, during initial climb, an unexpected situation forced the captain to attempt an emergency landing. The aircraft crash landed in a field past the runway end, slid for few dozen metres and came to rest, bursting into flames. All four crew members evacuated safely and the aircraft was totally destroyed by a post crash fire.

After takeoff from Juba Airport Runway 13, the four engine aircraft encountered difficulties to gain height. After a distance of some 800 metres, the aircraft impacted a hill and crashed on the shore of the White Nile. Two passengers were seriously injured while 41 other occupants were killed, among them all six crew members. Weather conditions at the time of the accident were marginal with rain showers. South Sudan Authorities reported the aircraft was unable to climb because it was overloaded, and the captain reported to ATC prior to departure he was carrying 12 passengers. According to Antonov, the aircraft was not airworthy at the time of the accident because its owner, Tajik Asia Airways, was not compliant with published procedures.

The aircraft departed Buenos Aires-San Fernando Airport on a positioning flight to Río Gallegos, carrying two pilots. During the takeoff roll, the copilot (pilot-in-command) noticed that the left engine N1 reached a value of 101% instead of 95% like the right engine. At that point the aircraft had already traveled 380 metres. As the aircraft started to veer to the right, the copilot decided to abandon the takeoff procedure without informing the captain. The power levers were brought back to idle and the copilot started to brake. After a course of about 980 metres, the right engine N1 value dropped to 30-40% while the left engine remained at 101%. Then the captain took over control, deployed briefly the thrust reverser system when the aircraft departed the runway to the right. While rolling in a grassy area, it struck a drainage ditch located 80 metres from the runway, lost its undercarriage then slid for few dozen metres before coming to rest, bursting into flames. Both pilots evacuated safely while the aircraft was destroyed by a post crash fire.

The twin engine aircraft departed Bogotá-El Dorado on a short flight to Bogotá-Guaymaral Airport, carrying three passengers and one pilot. Three minutes after takeoff from runway 13L, while climbing to a height of 200 feet in VFR conditions, the airplane entered a left turn then descended into the ground and crashed into several houses located in the district of Engativá, near the airport, bursting into flames. The aircraft as well as several houses and vehicles were destroyed. All four occupants as well as five people on the ground were killed. Thirteen others were injured, seven seriously.

Shortly after takeoff from a grassy airstrip located just outside from the town of Taylor, some 15 km southeast of Fort St John, the single engine aircraft crashed in an open field, bursting into flames. The aircraft was totally destroyed by a post crash fire and both occupants, a father and his son, were killed.

The twin-engine airplane, flown by a commercial pilot, was departing on a business flight from runway 31 when the right engine lost power. According to a pilot-rated witness, the airplane was about halfway down the 6,500 ft runway at an altitude of about 100 ft above ground level when he heard a "loud pop" and then saw the airplane's right propeller slow. The witness reported that the airplane yawed to the right and then began a right turn toward runway 18 with the right engine's propeller windmilling. The witness further reported that the airplane cleared a tree line by about 150 ft, rolled right, descended straight down to ground impact, and burst into flames. Postaccident examination of the airplane's right engine revealed that the crankshaft was fractured adjacent to the No. 2 main bearing, which had rotated. The crankcase halves adjacent to the No. 2 main bearing were fretted where the case through-studs were located. The fretting of the mating surfaces was consistent with insufficient clamping force due to insufficient torque of the through-stud nuts. Records indicated that all six cylinders on the right engine had been replaced at the airplane's most recent annual inspection 8 months before the accident. In order to replace the cylinders, the through-stud nuts had to be removed as they also served to hold down the cylinders. It is likely that when the cylinders were replaced, the through-stud nuts were not properly torqued, which, over time, allowed the case halves to move and led to the bearing spinning and the crankshaft fracturing. During the accident sequence, the pilot made a right turn in an attempt to return to the airport and did not feather the failed (right) engine's propeller, allowing it to windmill, thereby creating excessive drag. It is likely that the pilot allowed the airspeed to decay below the minimum required for the airplane to remain controllable, which combined with his failure to feather the failed engine's propeller and the turn in the direction of the failed engine resulted in a loss of airplane control.

Few minutes after takeoff from Bamyan Airport, the single engine crashed on the top of a rocky mountain. Both pilots were killed while five passengers were injured. The aircraft was destroyed. The aircraft was repatriating the body of a deceased soldier when the accident occurred.

Shortly after takeoff from Bogotá-Guaymaral Airport, while climbing, the pilot declared an emergency after the failure of the right engine. He attempted an emergency landing in an open field when the aircraft crashed in a prairie located near the Los Andes hippodrome, some 5 km northeast of Guaymaral Airport, bursting into flames. A passenger was seriously injured while both other occupants were killed.