The investigation results show that the co-pilot accidentally activated the emergency slat extension when trying to clean the coffee from the panel. That reportedly caused the plane to dive and the brief shutdown of one of the engines. Unsurprisingly, there was panic among passengers.
The captain then stabilized the aircraft and returned to the capital, Belgrade. Slats are located on leading edges of the wings and are used by pilots to change the aircrafts' angle of descent.
Nikolic's associates then spoke of the plane shaking violently and being tossed all over the cabin. They said the president will use only commercial flights, because the 34-year-old government Falcon 50 has a history of inflight problems.
Serbia's aviation authorities say that the co-pilot has been suspended.