The SS Normandie was one of the most impressive cruise ships of the early 20th century. Launched in 1935, it was the largest and most luxurious vessel of its time, stretching 313 meters in length. Known for its opulence and comfort, the SS Normandie symbolized the elegance of the French merchant navy. However, its fate changed dramatically with the outbreak of World War II. Following the attack on Pearl Harbor, American authorities seized the ship, which was then stationed in New York, and renamed it USS Lafayette. The ship was to be converted into a military transport for the U.S. armed forces. On February 9, 1942, during the conversion process at Pier 88 in New York, a fire broke out in the ship’s Grand Salon. Some accounts suggest that a worker using a torch may have caused a spark that ignited flammable materials stored in the room. The fire spread quickly, fueled by the ship’s rich wooden and fabric interior. New York firefighters fought to put out the flames, using between 6,000 and 10,000 tons of water. However, the large volume of water created a phenomenon known as a liquid keel, which caused the ship to tilt dangerously. The SS Normandie tilted up to 40 degrees before capsizing during the night of February 9 to 10, 1942, ending up on its side in the icy waters of the Hudson River, near what is now the Manhattan cruise terminal. The FBI investigated the fire and concluded it was accidental, the result of human negligence during the military conversion. Despite this, some wartime rumors suggested Nazi sabotage, though these were never confirmed. The ship was considered too damaged and expensive to repair. After the war, France was offered the chance to reclaim the remains of the SS Normandie, but it refused. The SS Normandie was eventually dismantled in 1947. The incident highlighted flaws in American crisis management and the unexpected dangers of large-scale firefighting. The sinking of the SS Normandie remains a significant event in maritime history, serving as a reminder of how poor decisions during emergencies can lead to devastating consequences.