I encountered the following text: "Liberators of FAW-7 joined Commonwealth aircraft in an all-day encounter with U-996 on November 10. Caught on the surface by two Wellington bombers, this resilient U-boat then withstood attacks by three U.S. Navy PB4Y-1s before a Czech-manned Liberator disabled it with rocket fire. Unable to dive, U-996’s crew finally scuttled its sub two miles off the Spanish coast."

Has anyone heard of U-996