the flood happened while a sea-water strainer was being cleaned, in an attempt to improve the production of fresh water. The air lines controlling a hull valve were incorrectly reconnected, resulting in the valve opening and an inability to close it. The pipe installation fell below generally accepted standards, which made reconnection of the air lines ambiguous. The inquiry also found that, due to manpower constraints, the ship did not have a system maintainer and that clarity of engineering command had been lost, with no-one clearly in charge of risk-management. It was fortunate that, without propulsion, Endurance had drifted over an area shallow enough for anchors to be let go and to hold the ship in position, otherwise, "there was a very real possibility that she would have been lost either by running ashore or by succumbing to the flood." The inquiry judged that the ship's company responded well to control damage in challenging conditions. Ice Patrol (TV series) In 2009, National Geographic Channel ran a four-episode documentary series on Endurance. Five ran the same series the following year under the name Ice Patrol, with the final episode showing what happened the day the ship almost sank. Replacement On 9 September 2010, speculation in the press suggested it was likely that Endurance would be scrapped and replaced with another icebreaker from Norway. On 22 March 2011, it was announced that the Royal Navy intended to hire MV Polarbjørn, to be renamed , for three years whilst a final decision on whether to repair or scrap Endurance is made. was purchased in September 2013. It was announced on 7 October 2013 that Endurance would be sold for scrap, as it was not 'economically viable' to repair the damage sustained in 2008. In July 2015 the Ministry of Defence gave advanced notice of sale of the vessel for further use or recycling, noting that "parties interested in acquiring the vessel for future use should note it will require considerable investment". The vessel left Portsmouth under tow on her final voyage to the breakers' yard in Turkey on 1 June 2016. Link to Sir Ernest Shackleton Endurance was named after the ship which Sir Ernest Shackleton used in his Antarctic expedition of 1914–1917. The names of Endurances boats and landing craft continued the Shackleton connection: James Caird and Dudley Docker were named after boats carried by Shackleton's Endurance, Nimrod was named after the