Helicopter Sikorsky H-19C Chickasaw Serial 55-249 Register 51-14284 used by US Army Aviation Army. Built 1952. Aircraft history and location Aircraft History 51-14284 US Army Aviation 1952-11-04Sikorsky S-55 c/n 55-249, ff:? del as H-19C, 51-14284, 04Nov52. Send Updates Use APP to upload photo @ (optional) When Now? / / Send