Helicopter Sikorsky H-19B Chickasaw Serial 55-738 Register 53-4406 used by US Air Force USAF. Built 1954. Aircraft history and location Aircraft History 53-4406 US Air Force 1954-07-08Sikorsky S-55 c/n 55-738, ff:? del USAF as H-19B, 53-4406, 08Jul54. Send Updates Use APP to upload photo @ (optional) When Now? / / Send
