The Convair took off from Buenos Aires at 15:00 for a VFR flight to Cordoba. En route altitude was to be 1200 m. Some 10 minutes after takeoff the pilot requested permission to descend to 600 m because of a marked frontal belt. A little later the aircraft entered the storm area and descended into the ground. PROBABLE CAUSE: “Through causes which could not be fully ascertained and in circumstances arising while the aircraft, in attempting to leave the area of a violent storm, was flying at a low altitude, the aircraft was carried into the ground. Contributory causes: 1) The persistence of the pilot-in-command in attempting in climb, without making use, at the appropriate time, of the full power available to arrest the descent caused, according to his own statement, by meteorological conditions. 2) The decision by the pilot-in-command to enter a local storm the violence of which he did not foresee and which he could have circumnavigated as prescribed by the operational standards of the company. 3) The fact that the pilot-in-command had no meteorological information relating to the weather conditions he encountered.”