Nuclear Submarines on Fire

Soviet Delta class submarine-firing-SS-N-18 missiles. image from wikipedia

More than 80 firefighters and 20 fire trucks were involved in the work to extinguish the fire [that occurred on nuclear submarine  the “Oryol”], at around 2PM Moscow time during  works on the submarine, at Zvezdochk,  shipyard in Severodvinsk Russia.   The first information that the fire had been put out, came at around 5PM, but this information turned out to be false. The fire was not extinguished until 00:57 Moscow time, after the dock with the submarine had been flooded.  The vessels reactor had been shut down and the fuel had been unloaded before the repairs started. The submarine had no weapons onboard

One of many accidents
This accident that occurred on April 7, 2015 was the latest in a series of accidents that have occurred at Zvezdochka and other ship repair yards in Northwest-Russia during the last years.

On December 29, 2011 a fire broke out on the nuclear-powered Delta IV-class submarine “Yekaterinburg” while it was in a floating dock at the naval yard Roslyakovo just north of the town of Murmansk on the Kola Peninsula. According to the first official reports the fire only harmed the outer rubber coating of the submarine, and all the missiles had removed from the vessel before going in dock. Later Northern Fleet officials admitted that the submarine had both missiles and torpedoes on board. “Yekaterinburg” was re-launchedin June 2014, after two years of repairs.

In March 2014, during decommissioning work on the Oscar-II class nuclear submarine “Krasnodar” at the Nerpa naval yard north of Murmansk, the rubber on the outer hull of the submarine caught fire. There were no radioactive leakages, and no one was hurt in the accident.

Tuesday’s accident was the seventh at Zvezdochka in ten years, according to RIANovosti.  The other accidents were:

February 19 2010: Fire during dismantling of the Akula-class nuclear submarine K-480 “Ak Bars”. No casualties. Cause of fire: violation of fire safety during hot works.
December 11 2009: Leak of two cubic meters of liquid radioactive waste from a broken pipeline. No casualties, no radioactive waste leaked into the environment.
October 6 2009: Fire during dismantling of the Yankee-class nuclear submarine K-403 “Kazan”. The fire occurred during use of gas-flame cutter. Workers evacuated, no casualties.
March 25 2009: Fire during dismantling of the Yankee-class nuclear submarine K-411 “Orenburg”. The rubber coating of the vessel caught fire during hot works. No casualties.
July 26 2007: The main ballast tank of a nuclear submarine in dry dock was punctured as a result of excess air pressure. No casualties.
August 1 2005: Two people died in a fire during dismantling of an Akula-class nuclear submarine. Cause of the fire was ignition of vapors of fuel and lubricants during hot works.

Excerpts  from Trude Pettersen, Fire-struck nuclear submarine to be repaired, Barents Observer, Apr. 8, 2015

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