According to a report from WSF the Walla Walla lost propulsion on April 15, because the fuel filters were clogged with bacteria and fungus.
We now know why a Washington state ferryboat ran aground on Bainbridge Island earlier this year.
According to a report from Washington State Ferries , the M/V Walla Walla lost propulsion on its run between Bremerton and Seattle April 15 because the fuel filters were clogged with bacteria and fungus.The investigation between the U.S. Coast Guard and WSF concluded that contaminated fuel led to a failure of both the generator and its backup systems, causing the boat to lose power.
According to WSF, the ferry ran aground around 4:30 p.m. while on the way to Seattle. Initial indications are that the ferry suffered a generator failure. The report goes on to say the material got into the filters from some black sludge that had accumulated at the bottom of one of the so-called day tanks that hold oil and water for the vessel.
“This water contamination resulted in gross bacterial and fungal growth to the extent that the fuel filtration system was overcome, and the ships service diesel and vital generator engines could not function,” the reports said.An investigation also concluded that crew fatigue was not a factor in the grounding, as well as drug and alcohol tests from the crew all came back negative.
WSF confirmed that all fuel currently on board tested clean while new monitoring gauges have been installed. They will also be conducting more biocide to limit bacterial and fungal growth, as well as introducing more training and procedures to monitor fuel systems.
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