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Accident Report Detail

​Marine Accident Brief: Flooding and Sinking of Towing Vessel Ms Nancy C

Executive Summary

​On March 6, 2018, about 1630 local time, the uninspected towing vessel Ms Nancy C was moving and positioning cargo barges while operating in Everett Lake, a tributary of the Mississippi River, when a deckhand discovered water in a void at the stern of the vessel. While the captain and deckhand attempted to dewater the vessel, it sank in 15 feet of water. Both crewmembers disembarked to a barge prior to the sinking without injury. Damage was estimated at $667,306.

Probable Cause

​The National Transportation Safety Board determines that the probable cause of the flooding and sinking of the towing vessel Ms Nancy C was inadequate maintenance of the vessel by Chocktaw Transportation Company, resulting in corrosion and the loss of watertight integrity on the main deck, which allowed uncontrolled water ingress into the vessel’s stern voids.

Accident Location: Dyersville , TN USA Everett Lake, mile 832 on Lower Mississippi River 36°3.71’N, 89°40.05’W
Accident Date: 3/6/2018
Accident ID: DCA18FM015

Date Adopted: 3/6/2019
NTSB Number: MAB1903
NTIS Number:  

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