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Accident Report Detail

Collision between Passenger Vessel Diamond Edge and Liftboat B.W. Haley

Executive Summary

On March 2, 2015, at 1027 local time, the passenger vessel Diamond Edge and the liftboat-configured offshore supply vessel B.W. Haley collided while under way in dense fog about 55 miles south-southwest of Lafayette, Louisiana. As a result of the collision, the hull of the Diamond Edge was breached and the vessel partially sank. There were no significant injuries or pollution reported. Estimated damage exceeded $1.75 million for both vessels combined.

Probable Cause

The National Transportation Safety Board determines that the probable cause of the collision between the B.W. Haley and the Diamond Edge was the failure of both operators to properly determine the risk of collision and the excessive speed of the  Diamond Edge  in restricted visibility.

Accident Location:   , LA   Freshwater Bayou Safety Fairway, Gulf of Mexico
Accident Date: 3/2/2015
Accident ID: DCA15LM015

Date Adopted: 6/13/2016
NTSB Number: MAB-16-06
NTIS Number:  

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