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Of Grand Forks • East Grand Forks May 19, 2022
Published by: Wick Publications
701-740-0968
Chad@TidbitsGF.com
Issue # 1,270
TIDBITS LOOKS AT SOME ®
LITTLE GLITCHES by Janet Spencer
ORGANIC SALON SPA
Hair Loss Hospital • REPAIR • REFRESH • RECLAIM Call to learn about Hair Loss Therapy!
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Come along with Tidbits as we consider how little glitches can lead to big problems! GLITCH: AN OPEN WINDOW • In 1982, the deep sea oil drilling rig “Ocean Ranger” had been drilling offshore for six years, and had weathered around 50 big storms. It was one of the world’s largest offshore rigs and was built to survive waves up to 110 feet high. On February 14, 1982, it was stationed off the coast of Newfoundland when a storm came in. • An offshore oil rig does not sit on the ocean floor; instead, it sits on underwater pontoons which can be filled with either air or water to keep the rig floating at the right level. On calm days, they are filled with water to keep the rig low; during storms the water is pumped out to lift the rig above the waves. • The storm was bad but not the worst. Still, a wave broke a pane of glass that covered the window in the ballast room. Seawater shorted out the electronic controls that operated valves in the pontoons. The ballast valves started to open and close at random. The crew shut down all electricity to the panel, then decided to manually close the valves using long pipes designed for the purpose. Unfortunately, they accidentally opened the valves instead of closing them, and the pontoons began to fill with seawater. Turn the page for more!
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