Helicopter Sikorsky H-19B Chickasaw Serial 55-778 Register 53-4433 used by US Air Force USAF. Built 1954. Aircraft history and location Aircraft History 53-4433 US Air Force 1954-10-06Sikorsky S-55 c/n 55-778, ff:? del USAF as H-19B, 53-4433, 06Oct54. 1964-06-16 1963-1964 at 917th Field Training Detachment in Vietnam w/o 16jun64 crashed on take off Send Updates Use APP to upload photo @ (optional) When Now? / / Send
