Video duration: 364 seconds
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Far out in the ocean, Sean dives under the DCV Balder to replace a busted 38-ton thruster.
World's Toughest Fixes: Thirty-Eight Ton Engine : WED OCTOBER 8 10P et/pt : http://channel.natio nalgeographic.com/se ries/worlds-toughest -fixes/3340/Overview /?source=4003