Helicopter Sikorsky H-19A Chickasaw Serial 55-124 Register N6680C N62256 51-3868 used by US Air Force USAF. Built 1952. Aircraft history and location Aircraft History 51-3868 US Air Force 1952-04-03Sikorsky S-55 c/n 55-124, ff:? del USAF as H-19A, 51-3868, 03Apr52. N62256 - ex 51-3868 N6680C - ex N62256 Send Updates Use APP to upload photo @ (optional) When Now? / / Send