went to sea for inspection and sea trials. In October 2004, the ship participated in a fleet exercise of the Russian Navy in the Atlantic Ocean. During a September 2005 exercise, a Su-33 accidentally fell from the carrier into the Atlantic Ocean. On 27 September 2006, it was announced that Admiral Kuznetsov would return to service in the Northern Fleet by the year's end, following another modernization to correct some technical issues. Admiral Vladimir Masorin, Commander-in-Chief of the Russian Navy, also stated that Su-33 fighters assigned to it would return after undergoing their own maintenance and refits. 2007–2008 deployment From 5 December 2007 through 3 February 2008 Admiral Kuznetsov made its second Mediterranean deployment. On 11 December 2007, Admiral Kuznetsov passed by Norwegian oil platforms in the North Sea, outside Bergen, Norway. Su-33 fighters and Kamov helicopters were launched from Admiral Kuznetsov while within international waters; Norwegian helicopter services to the rigs were halted due to the collision risk with the Russian aircraft. Admiral Kuznetsov later participated in an exercise on the Mediterranean Sea, together with 11 other Russian surface ships and 47 aircraft, performing three tactical training missions using live and simulated air and surface missile launches. Admiral Kuznetsov and its escorts returned to Severomorsk on 3 February 2008. Following maintenance, it returned to sea on 11 October 2008 for the Stability 2008 strategic exercises held in the Barents Sea. On 12 October 2008, Russian President Dmitry Medvedev visited the ship during the exercise. 2008–2009 deployment From 5 December 2008 through 2 March 2009, Admiral Kuznetsov made its third Mediterranean deployment. On 5 December 2008, the carrier and several other vessels left Severomorsk for the Atlantic for a combat training tour, including joint drills with Russia's Black Sea Fleet and visits to several Mediterranean ports. On 7 January 2009, a small fire broke out onboard Admiral Kuznetsov while anchored off Turkey. The fire, caused by a short circuit, led to the death of one crew member by carbon monoxide poisoning. On 16 February 2009, it was involved in a large oil spill, along with other Russian naval vessels, while refuelling off the south coast of Ireland. On 2 March 2009, Admiral Kuznetsov returned to Severomorsk, and in September 2010 it left dry dock after scheduled repairs and preparations for a training mission in the Barents Sea, later that month. 2011–2012 deployment The Russian Main Navy Staff announced that Admiral