Error-Filled Research and Investigation
After the famous submarine sunk, it would take a few decades before the truth was revealed about what really happened to the Grayback. Bear in mind, she also had a crew of 80 members. At first, the U.S. Navy had the idea that the submarine had sunk around 100 miles of the southeast of the Japanese Island of Okinawa. After numerous research and investigations, it turned out that information was based on data collected that had a lot of errors.
Single-Digit Error
The information received by the U.S. Navy came from war records that the Japanese had. However, based on investigations, it turned out a single digit in a map was transcribed wrong, and as such, the original placement of the submarine was not even close to where the records had it. So, those years of information were completely wrong, and the intense search and rescue efforts so far had all been in vain.