Helicopter Sikorsky H-19C Chickasaw Serial 55-269 Register 51-14291 used by US Army Aviation Army. Built 1952. Aircraft history and location Aircraft History 51-14291 US Army Aviation 1952-11-07Sikorsky S-55 c/n 55-269, ff:? del as H-19C, 51-14291, 07Nov52. Send Updates Use APP to upload photo @ (optional) When Now? / / Send