At 05.20 hours on 8 July 1943, U-510 fired three torpedoes in one minute intervals at convoy TJ-1 and reported hits on three ships. At 07.19 hours, the U-boat fired five more torpedoes and claimed hits on two further ships. At 13.07 hours, U-510 attacked convoy again and reported another ship of 6000 tons sunk. However, Allied sources only confirm hits on three ships: B.P. Newton, Eldena and Everagra, which was only damaged. It seems that the U-boat attacked the same targets several times.

At 05.20 hours, the B.P. Newton (Master Einar Andersen) was hit on the port side aft by one torpedo. Her cargo was ignited by the explosion and flaming fuel sprayed over stern and bridge, destroying all lifeboats apart of one on starboard. The men on watch below were killed before they were able to stop the engines. Many of the crew on the stern jumped overboard and perished in the burning sea. The remaining crew members stayed on the forecastle. The master and the second mate remained for 40 minutes on the bridge to consider if anything could be done to save the tanker, but they were chased off by the flames and were able to launch the damaged lifeboat on starboard. Four men from the forecastle jumped into the water and were picked up by the lifeboat, which was then rowed away from the burning ship. 24 survivors, twelve of them badly burned, were picked up by the escort vessels, which searched the whole day for more survivors, but there was no attempt to reboard the B.P. Newton because the side plates were glowing red and no one was expected to be alive onboard. She sank about 150 miles northeast of Cayenne, French Guiana. All survivors were landed at Pernambuco on 17 July.