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Report: Fatigue caused grounding of tug

The Transportation Safety Board found out that the second mate on the 'Nathan E

Report: Fatigue caused grounding of tug
31 May 2018 - 23:07
The Transportation Safety Board found out that the second mate on the 'Nathan E. Stewart' that ran aground off Vancouver Island missed a planned change of course because he fell asleep while he was alone on watch. About 107,000 litres of diesel and more than 2,200 litres of lubricants, including gear and hydraulic oils, leaked into the Pacific Ocean after the 'Nathan E. Stewart' ran aground in October 2016. He had been working a schedule that didn't allow for sufficient rest while off duty, the board said Thursday. The safety board recommendied that watchkeepers be trained to help identify and prevent the risks of fatigue, and that all vessel owners have fatigue-management plans tailored to individual operators. Fatigue has been identified as a “casual or contributory factor” in a number of marine accidents. The report also said spill response and recovery efforts were within prescribed time standards, but there was some confusion about who had authority over the operation. The board said keeping watch alone on the bridge of the 'Nathan E. Stewart' was contrary to Canadian regulations. It said the second mate had been alternating between six hours on duty and six hours of rest for more than two days. The U.S. National Transportation Safety Board released a report in November saying the tug's second mate told investigators he missed a change of course after falling asleep, which the board said was the probable cause of the vessel running aground. The U.S. report said Houston-based Kirby Offshore Marine had ineffectively implemented safety management procedures, which contributed to the accident involving its tug and that there was a lack of documentation on safety rounds and no evidence that safety management rules were implemented on board the 'Nathan E. Stewart'. Full report: www.bst-tsb.gc.ca...
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