NTSB Pinpoints Hull Corrosion as Cause of Fishing Vessel North America Sinking

The National Transportation Safety Board (NTSB) has released its final report detailing the circumstances leading to the sinking of the fishing vessel North America on May 14, 2024, near Seattle, Washington. The vessel, which was uncrewed and docked on the Lake Washington Ship Canal, began flooding overnight. Representatives for the vessel were alerted to the situation, and salvors were dispatched. Despite their efforts to pump out the accumulating water, the flooding could not be controlled, and the vessel ultimately sank. Fortunately, no injuries were reported, and there was no pollution resulting from the incident. The estimated damage to the fishing vessel was $3 million.

The NTSB’s investigation concluded that the primary cause of the flooding and subsequent sinking of the North America was hull corrosion. This corrosion led to the formation of wastage holes in the vessel’s hull. These openings allowed water to enter the engine room while the vessel was unattended overnight, leading to the progressive flooding that caused it to sink.

The NTSB’s findings highlight the critical importance of regular hull inspections and maintenance for maritime vessels, particularly those docked and unattended. While this incident resulted in significant property damage, the absence of injuries or pollution underscores the potential for less severe outcomes in marine accidents. Further information and lessons learned from this investigation are available on the NTSB’s investigation page.

Article by Mel Anara, based upon information from the National Transportation Safety Board.

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