Austral Lineas Aeras (Argentina) Flight 901Thursday May 7, 1981
The aircraft crashed into a river bed after two missed approaches and while in a holding pattern. Severe turbulence and thunderstorms where occurring in area. Loss of control of the aircraft and impact with the water by an error of the pilot in assessing the meteorological conditions on crossing through a zone of extremely violent cumulonimbus clouds. Windshear.