TSIL436 = The Secret in Locker 436
The deepest sunken shipwreck ever discovered has been found in the Philippine Sea, researchers announced in late October of 2019
The wreck of the U.S. World War II destroyer was found at a depth of 20,406 feet by experts on the Research Vessel Petrel. Explorers used an undersea drone to locate the ship, which is believed to be the USS Johnston, a Fletcher-class destroyer sunk during the Battle off Samar, a key action in the Battle of Leyte Gulf in 1944.
Research Vessel Petrel (R/V Petrel) is part of Vulcan Inc., a research organization set up by the late Microsoft co-founder Paul Allen.