Helicopter Sikorsky H-19B Chickasaw Serial 55-495 Register 52-7592 used by US Air Force USAF. Built 1953. Aircraft history and location Aircraft History 52-7592 US Air Force 1953-07-07Sikorsky S-55 c/n 55-495, ff:? del USAF as H-19B, 52-7592, 07Jul53. 1954-02-09 to French Forces w/o 09feb54 Send Updates Use APP to upload photo @ (optional) When Now? / / Send