Helicopter Sikorsky H-19A Chickasaw Serial 55-151 Register 51-3880 used by US Air Force USAF. Built 1952. Aircraft history and location Aircraft History 51-3880 US Air Force 1952-06-02Sikorsky S-55 c/n 55-151, ff:? del USAF as H-19A, 51-3880, 02Jun52. 1953-06-10 w/o 10jun53 Send Updates Use APP to upload photo @ (optional) When Now? / / Send