the santa barbara airlines plane came off just before dusk from the state of merida con route to simon bolivar international airport outside the capital city of trinidad . luisa marquez , director of venezuela ' s emergency management agency in compostela , said the plane has failures to pass all towers . civil defense chief general francisco eugenio told journalist that it is unknown whether or not the helicopter crashed or is simply missing .
A plane with 46 passengers has not contacted control towers.