Aerolíneas Argentinas Flight 644 was a scheduled flight operated by the Douglas DC-6, registration LV-ADW, on 19 July 1961 which was due to operate a domestic scheduled passenger service between Ministro Pistarini International Airport and General Enrique Mosconi International Airport, but crashed 12 kilometers west of Pardo, Buenos Aires, Argentina, half an hour after takeoff, owing to severe turbulence during climb out.