Helicopter Sikorsky H-19D Chickasaw Serial 55-895 Register 55-3176 used by US Army Aviation Army. Built 1955. Aircraft history and location Aircraft History 55-3176 US Army Aviation 1955-09-26Sikorsky S-55 c/n 55-895, ff:? del US Army as H-19D, 55-3176, 26Sep55. Send Updates Use APP to upload photo @ (optional) When Now? / / Send