Helicopter Sikorsky H-34A Choctaw Serial 58-87 Register 53-4525 used by US Army Aviation Army. Built 1955. Aircraft history and location Aircraft History 53-4525 US Army Aviation 1955-08-24 Sikorsky CH-34C Choctaw del US ARMY as H-34A, 53-4525, 24Aug55 to H-34C by Jan62 sos Traning School Sub-command, Fort Eustis, VA, Jun70. Send Updates Use APP to upload photo @ (optional) When Now? / / Send