Helicopter Sikorsky H-19C Chickasaw Serial 55-294 Register N12564 51-14300 used by US Army Aviation Army. Built 1952. Aircraft history and location Aircraft History 51-14300 US Army Aviation 1952-12-14Sikorsky S-55 c/n 55-294, ff:? del as H-19C, 51-14300, 14Dec52. N12564 - Send Updates Use APP to upload photo @ (optional) When Now? / / Send