Helicopter Sikorsky H-19C Chickasaw Serial 55-202 Register 51-14261 used by US Army Aviation Army. Built 1952. Aircraft history and location Aircraft History 51-14261 US Army Aviation 1952-08-14Sikorsky S-55 c/n 55-202, ff:? del as H-19C, 51-14261, 14Aug52. Send Updates Use APP to upload photo @ (optional) When Now? / / Send