Helicopter Sikorsky H-19C Chickasaw Serial 55-242 Register N15185 51-14277 used by US Army Aviation Army. Built 1952. Aircraft history and location Aircraft History 51-14277 US Army Aviation 1952-10-23Sikorsky S-55 c/n 55-242, ff:? del as H-19C, 51-14277, 23Oct52. N15185 - Send Updates Use APP to upload photo @ (optional) When Now? / / Send