USS George Washington (SSBN-598) - Collision With Nissho Maru

Collision With Nissho Maru

On 9 April 1981, George Washington surfaced underneath the 2,350 long tons (2,390 t) Japanese commercial cargo ship Nissho Maru in the East China Sea about 110 nmi (130 mi; 200 km) south-southwest of Sasebo, Japan. Nissho Maru sank in about 15 minutes. Two Japanese crewmen were lost; 13 were rescued. The submarine suffered minor damage to her sail.

The accident strained U.S.-Japanese relations a month before a meeting between Japanese Prime Minister Zenko Suzuki and President of the United States Ronald Reagan. Japan criticized the U.S. for taking more than 24 hours to notify Japanese authorities, and demanded to know what the boat was doing surfacing only about 20 nmi (23 mi; 37 km) outside Japan's territorial waters. Neither the submarine nor an American Lockheed P-3 Orion maritime patrol aircraft circling overhead made any attempt to rescue the Japanese crew.

The U.S. Navy initially stated that George Washington executed a crash dive during the collision, and then immediately surfaced, but could not see the Japanese ship due to fog and rain. A preliminary report released a few days later stated the submarine and aircraft crews both had detected Nissho Maru nearby, but neither the submarine nor the aircraft realized Nissho Maru was in distress.

On 11 April, President Reagan and other U.S. officials formally expressed regret over the accident, made offers of compensation, and reassured the Japanese there was no cause for worry about radioactive contamination. As is its standard policy, the U.S. Government refused to reveal what the submarine was doing close to Japan, or whether she was armed with nuclear missiles. (The standard response all modern American submariners are taught to neither confirm nor deny the presence of nuclear weapons aboard.) The Navy accepted responsibility for the incident, and relieved and reprimanded the George Washington's commanding officer and officer of the deck.

On 31 August, the U.S. Navy released its final report, concluding the accident resulted from a set of coincidences, compounded by errors on the part of some members of the submarine crew.

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