Helicopter Sikorsky H-19D Chickasaw Serial 55-908 Register 55-3185 used by US Army Aviation Army. Built 1955. Aircraft history and location Aircraft History 55-3185 US Army Aviation 1955-11-08Sikorsky S-55 c/n 55-908, ff:? del US Army as H-19D, 55-3185, 08Nov55. Send Updates Use APP to upload photo @ (optional) When Now? / / Send