Excerpt from abstract: About 1100 c.s.t. on April 14, 1976, the self-elevating drilling unit OCEAN EXPRESS departed a drilling site in the Gulf of Mexico under tow for a new drilling site about 33 nm away. The OCEAN EXPRESS arrived at the new drilling site about 2330, but was not set in place because of adverse seas. Three tugs held the OCEAN EXPRESS in position awaiting better weather, but the seas continued to increase. On April 15, 1976, one tug's starboard reduction gear failed, and another tug's towline broke. With only one effective tug remaining, the OCEAN EXPRESS turned broadside to the wind and seas, drifted, grounded, capsized, and sank about 2115. Thirteen persons drowned in a capsized survival capsule... click here.
Keywords: Self-elevating MODU; survival capsule; weather forecasts; towing; operating manual; Gulf of Mexico; industrial personnel; training; jacking limits; contingency plans; grounding; sea; swell; directional control; extreme wave action