boat had hit an "uncharted sea mount" at a high speed. The captain of the submarine, Commander Kevin Mooney, was later relieved of his command after an investigation revealed that he had been using inadequate methods of ocean voyage planning. San Francisco underwent a rapid deceleration from more than to a standstill, causing a section of her bow to collapse (including her sonar system) and everything not tied down to fly forward in the boat. San Francisco returned to her base at Guam, where emergency repairs were carried out. Next, she steamed to the Puget Sound Naval Shipyard for more permanent repairs. The bow section of San Francisco was replaced with that of her sister ship, , which had already been removed from service because of years of wear and tear. This replacement of the bow of San Francisco was successful, and the vessel returned to active service in the Pacific Fleet, based at San Diego. AS-28 emergency On 5 August 2005, the Russian AS-28, while operating off the coast of the Kamchatka Peninsula, became entangled in a fishing net, or possibly by cables belonging to an underwater antenna assembly, at a depth of . Unable to free itself, the submarine was stuck with a depleting air supply. After a multi-national effort, a Royal Navy team using a Scorpio ROV was able to free the submarine from the entanglement, allowing it to return to the surface. All seven crew members were rescued safely. USS Philadelphia collision with MV Yasa Aysen On 5 September 2005, was in the Persian Gulf about northeast of Bahrain when she collided with the Turkish merchant ship MV Yasa Aysen. No injuries were reported on either vessel. The damage to the submarine was described as "superficial." The Turkish ship suffered minor damage to its hull just above her waterline, but the United States Coast Guard inspected the ship and found her to be still seaworthy. The commanding officer of Philadelphia, Commander Steven M. Oxholm, was relieved of his command following this collision. 2006 Daniil Moskovsky fire On 6 September 2006 the Russian Victor III-class submarine Daniil Moskovsky suffered a fire which resulted in the deaths of two crewmen (a warrant officer and a sailor). At the time of the incident the submarine was anchored off the Rybachiy peninsula, on Russia's north coast near the border with Norway. The fire was extinguished with no damage to the