Helicopter Sikorsky H-34A Choctaw Serial 58-729 Register SA.31 used by Sud-Est Sud Est (SNCASE - Sud Est). Built 1957. Aircraft history and location Aircraft History For SA.31 see also 1957 H-34A SA.31 w/o 1961 SA.31 Sud-Est 1957-11-15Sikorsky H-34A c/n 58-729 del as components to Sud Aviation, c/n SA.31, 15Nov57 [See SA.31 for service details.] Send Updates Use APP to upload photo @ (optional) When Now? / / Send