Helicopter Sikorsky H-19B Chickasaw Serial 55-741 Register 53-4409 used by US Air Force USAF. Built 1954. Aircraft history and location Aircraft History 53-4409 US Air Force 1954-07-14Sikorsky S-55 c/n 55-741, ff:? del USAF as H-19B, 53-4409, 14Jul54. Send Updates Use APP to upload photo @ (optional) When Now? / / Send
