 "U-43"s next patrol was more successful, departing from Lorient on 23 September 1942, sailing across the Atlantic and into the Gulf of Saint Lawrence.On the morning of 18 November, "U-43" fired four torpedoes at Convoy SC 109 and hit the 9,131 ton American tanker "Brilliant", loaded with of fuel oil.A diameter hole was made in her side, and the cargo caught fire.