The Metro III touched down just short of the runway edge. It suffered a gear collapse when striking the runway edge, causing severe damage to the wing and propellers. CAUSA PROBABLE: “Choque del tren de aterrizaje de la aeronave contra un peque¤o desnivel en el suelo debido a que se hizo contacto con el terreno antes de los l¡mites de la pista, provocando la retracci¢n del tren de aterrizaje principal izquierdo y otros da¤os de importancia al impactar luego con desniveles en el suelo de mayor significaci¢n al costado de la pista. Fueron factores contribuyentes la no consideraci¢n por parte de los operadores, de las restricciones que se hab¡an impuesto al aer¢dromo. La probable acci¢n de posibles corrientes de aire descendentes cercanas al suelo.” PROBABLE CAUSE: “The landing gear of the aircraft struck a small gap in the ground because they made contact with the ground before the limits of the runway, causing the retraction of the left main landing gear and other significant damage on impact with then unevenness in the soil on the side of the runway. Contributing factors: The failure by operators to consider the restrictions that were imposed on the airfield. The result of possible downdraught near the ground.