Helicopter Sikorsky H-19C Chickasaw Serial 55-297 Register N15181 51-14303 used by US Army Aviation Army. Built 1952. Aircraft history and location Aircraft History 51-14303 US Army Aviation 1952-12-14Sikorsky S-55 c/n 55-297, ff:? del as H-19C, 51-14303, 14Dec52. N15181 - Send Updates Use APP to upload photo @ (optional) When Now? / / Send