Helicopter Sikorsky H-19D Chickasaw Serial 55-805 Register 54-1411 used by US Army Aviation Army. Built 1954. Aircraft history and location Aircraft History 54-1411 US Army Aviation 1954-11-01Sikorsky S-55 c/n 55-805, ff:? del US Army as H-19D, 54-1411, 01Nov54. Send Updates Use APP to upload photo @ (optional) When Now? / / Send