Helicopter Sikorsky H-19D Chickasaw Serial 55-982 Register 55-3226 used by US Army Aviation Army. Built 1956. Aircraft history and location Aircraft History 55-3226 US Army Aviation 1956-07-27Sikorsky S-55 c/n 55-982, ff:? del US Army as H-19D, 55-3226, 27Jul56. Send Updates Use APP to upload photo @ (optional) When Now? / / Send