Helicopter Sikorsky H-19D Chickasaw Serial 55-914 Register 55-3188 used by US Army Aviation Army. Built 1955. Aircraft history and location Aircraft History 55-3188 US Army Aviation 1955-12-09Sikorsky S-55 c/n 55-914, ff:? del US Army as H-19D, 55-3188, 09Dec55. Send Updates Use APP to upload photo @ (optional) When Now? / / Send