Helicopter Sikorsky H-19B Chickasaw Serial 55-826 Register 53-4455 used by US Air Force USAF. Built 1955. Aircraft history and location Aircraft History 53-4455 US Air Force 1955-02-24Sikorsky S-55 c/n 55-826, ff:? del USAF as H-19B, 53-4455, 24Feb55. Send Updates Use APP to upload photo @ (optional) When Now? / / Send
