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Accident Report Detail

Collision of Bulk Carrier Yochow with Articulated Tug and Barge OSG Independence/OSG 243

Executive Summary

At 0250 local time on June 13, 2018, the inbound bulk carrier Yochow collided with the articulated tug and barge OSG Independence/OSG 243, which was moored at the TPC Group, Inc. facility on the Houston Ship Channel in Houston, Texas. OSG 243’s tanks were empty and awaiting a cargo of methyl tert-butyl ether (MTBE). As a result of the collision, two of the barge’s tanks and Yochow’s bulbous bow were holed, and the facility suffered extensive structural damage. There were no injuries among the crew of 18 on the Yochow or the 8 aboard the tug OSG Independence, nor was any pollution reported. Damage to the facility ($20 million), the barge ($1 million), and the bulk carrier ($338,000) amounted to an estimated $21,338,000.

Probable Cause

The National Transportation Safety Board determines that the probable cause of the collision of the bulk carrier Yochow with the tank barge of the articulated tug and barge OSG Independence/OSG 243 was the mate’s failure to effectively monitor the helmsman, contrary to the principles of good bridge resource management. Contributing to the accident was the lack of company and shipboard oversight to ensure crewmembers adhered to work/rest guidelines, resulting in fatigue of the helmsman.

Accident Location: Houston , TX   Houston Ship Channel
Accident Date: 6/13/2018
Accident ID: DCA18FM026

Date Adopted: 4/23/2019
NTSB Number: MAB-19-08
NTIS Number:  

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