Helicopter Sikorsky H-19C Chickasaw Serial 55-179 Register 51-14246 used by US Army Aviation Army. Built 1952. Aircraft history and location Aircraft History 51-14246 US Army Aviation 1952-07-11Sikorsky S-55 c/n 55-179, ff:? del as H-19C, 51-14246, 11Jul52. Marilyn Monroe picture in this helo Send Updates Use APP to upload photo @ (optional) When Now? / / Send