Helicopter Sikorsky H-19B Chickasaw Serial 55-493 Register 52-7482 used by US Air Force USAF. Built 1953. Aircraft history and location Aircraft History 52-7482 US Air Force 1953-09-10Sikorsky S-55 c/n 55-493, ff:? del USAF as H-19B, 52-7482, 10Sep53. Send Updates Use APP to upload photo @ (optional) When Now? / / Send
