Helicopter Sikorsky H-34A Choctaw Serial 58-940 Register 57-1737 used by US Army Aviation Army. Aircraft history and location Aircraft History 57-1737 US Army Aviation del US ARMY as H-34A, 57-1737, unk to MASDC as XJ0158 Oct 10, 1972. 1959-09-01 A EGLK at Blackbushe airfield, UK with 57-1712, 57-1714, 54-2909 Pres.Eisenhower to Regents Park London Send Updates Use APP to upload photo @ (optional) When Now? / / Send