Helicopter Sikorsky H-19D Chickasaw Serial 55-918 Register 55-3192 used by US Army Aviation Army. Built 1956. Aircraft history and location Aircraft History 55-3192 US Army Aviation 1956-01-10Sikorsky S-55 c/n 55-918, ff:? del US Army as H-19D, 55-3192, 10Jan56. Send Updates Use APP to upload photo @ (optional) When Now? / / Send