Helicopter Sikorsky H-34A Choctaw Serial 58-765 Register 56-4338 used by US Army Aviation Army. Built 1958. Aircraft history and location Aircraft History 56-4338 US Army Aviation 1958-02-07 Sikorsky CH-34C Choctaw del US ARMY as H-34A, 56-4338, 07Feb58 to CH-34C Apr63 soc 504th Aviation, 4th Armored Division, Apr64. Send Updates Use APP to upload photo @ (optional) When Now? / / Send