A Cessna 208B Grand Caravan, registration PT-OSG, was substantially damaged from impact and fire following an aborted takeoff at Barra do Vento Airport, Brazil. The pilot was seriously injured. The airplane had just lifted off the runway when the pilot noticed an abnormal vibration in the aircraft, along with the illumination of the “Door Warning” warning light to the instrument panel. Given the situation, the pilot decided to abort the takeoff. However, the plane drifted to the right and climbed again before impacting terrain. a) It is possible that the pilot made an inappropriate flight control application, at the time the aircraft returned to the runway, making it impossible to remain on the runway axis and drifting off the runway. b) Having rotated the aircraft, the pilot opted to return to the runway due to the illumination of the red light “Door Warning.” However, according to the manufacturer, this situation did not require such an immediate action; rather, the POH directed continued flight observing procedures, care and speed limits for each type of door opening in flight. c) It is possible that the pilot training has not been adequate or sufficient, because after the illumination of the warning light and abnormal vibration in the aircraft the pilot carried out a different procedure than was recommended by the manufacturer and put the aircraft in an irreversible condition