Helicopter Sikorsky H-19D Chickasaw Serial 55-1179 Register 56-4283 used by US Army Aviation Army. Built 1958. Aircraft history and location Aircraft History 56-4283 US Army Aviation 1958-02-28Sikorsky S-55 c/n 55-1179, ff:? del US ARMY as H-19D, 56-4283, 28Feb58. Send Updates Use APP to upload photo @ (optional) When Now? / / Send