Helicopter Sikorsky HO4S-3 Serial 55-892 Register 55892 used by Royal Canadian Navy (1945-1968). Built 1955. Aircraft history and location Aircraft History 55892 Royal Canadian Navy (1945-1968) 1955-08-31HO4S-3 RCN d/d 31aug55 w/o 14mar57 ditched off the coast of Key West Florida. Crew rescued by USS Cromwell (DE 1014) Send Updates Use APP to upload photo @ (optional) When Now? / / Send