A missing Pan Am Douglas DC-4 flight is reported to have been found in deep sea waters 74 years after it disappeared following an accident on 11 April 1952. According to the available report, the aircraft went down shortly after departing Puerto Rico, carrying 64 passengers and five crew members. Investigators later determined that the plane had broken apart after entering the ocean: it split into two main sections following the crash. The discovery is described as historic because the wreckage had remained missing for decades before being located underwater. The report focuses on the aircraft’s final circumstances and composition of those on board, noting that the DC-4’s separation into two parts occurred after the ocean impact. No additional details, such as the exact discovery location, the identity of the parties involved in locating the wreckage, or official findings from aviation authorities, are provided in the text supplied.