Helicopter Sikorsky H-19C Chickasaw Serial 55-319 Register 51-14311 used by US Army Aviation Army. Built 1953. Aircraft history and location Aircraft History 51-14311 US Army Aviation 1953-01-06Sikorsky S-55 c/n 55-319, ff:? del as H-19C, 51-14311, 06Jan53. Send Updates Use APP to upload photo @ (optional) When Now? / / Send