Helicopter Sikorsky H-19C Chickasaw Serial 55-304 Register 51-14310 used by US Army Aviation Army. Built 1953. Aircraft history and location Aircraft History 51-14310 US Army Aviation 1953-01-05Sikorsky S-55 c/n 55-304, ff:? del as H-19C, 51-14310, 05Jan53. Send Updates Use APP to upload photo @ (optional) When Now? / / Send