Helicopter Sikorsky H-34A Choctaw Serial 58-609 Register SA.21 used by Sud-Est Sud Est (SNCASE - Sud Est). Built 1957. Aircraft history and location Aircraft History For SA.21 see also 1957 H-34A SA.21 SA.21 Sud-Est 1957-06-29Sikorsky H-34A c/n 58-609 del as components to Sud Aviation, c/n SA.21, 29Jun57 [See SA.21 for service details.] Send Updates Use APP to upload photo @ (optional) When Now? / / Send