A Learjet 25D corporate jet, PT-KYR, was destroyed when it crashed during an approach to Bel‚m Airport, Brazil. Both pilots and both passengers sustained fatal injuries. The aircraft operated on a flight from Goiƒnia. The crew were flying an approach to runway 06 of Bel‚m Airport and had configure the plane for landing with gear down when the accident happened. Contributing factors (translated from Portuguese): (1). Adverse weather conditions – There is a hypothesis that “wind shear” existed in the approach path of runway 06. (2). Poor education – may have contributed, if the crew encountered “wind shear” in their flight path; they did not have training and experience necessary for dealing with this phenomenon and to take the corrective measures required for the situation. (3). Poor cockpit coordination – likely to have contributed. (4). Little flying experience on the aircraft – the captain had little flying experience in this type of aircraft. (5). Poor supervision.