The Ocean Ranger was a semi-submersible mobile offshore drilling unit that sank in Canadian waters on February 15, 1982, killing all 84 men on board. The crew had been drilling an exploration well in the Grand Banks area, 166 miles (267 km) east of St. John's, Newfoundland, for Mobil Oil of Canada, Ltd., when a sudden storm struck the rig. Rescue attempts were thwarted by the severe weather. After a two-year investigation into the disaster, what did a Canadian Royal Commission conclude? Discuss (http://forum.thefreedictionary.com/postst73736_-i-Ocean-Ranger--i--Drilling-Rig-Sinks.aspx)