Helicopter Sikorsky H-19D Chickasaw Serial 55-860 Register 54-1429 used by US Army Aviation Army. Built 1955. Aircraft history and location Aircraft History 54-1429 US Army Aviation 1955-03-24Sikorsky S-55 c/n 55-860, ff:? del US Army as H-19D, 54-1429, 24Mar55. Send Updates Use APP to upload photo @ (optional) When Now? / / Send