03.04.2013 Views

Songa Mercur King Post Failure - DrillSafe

Songa Mercur King Post Failure - DrillSafe

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The Investigation<br />

Technical Analysis - Root Cause<br />

Root Cause<br />

The original design did not anticipate that the weld to the rear<br />

stay base plate was not uniformly loaded<br />

This was due to the pad eye being located over the caisson wall<br />

and deck stiffener creating hard points to weld, resulting in only a<br />

fraction of the weld being effective

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