Human error was the cause of a motor meltdown aboard the ferry Walla Walla last November, according to a report released Monday by Washington State Ferries. The total cost of repairing the ferry will reach $3 million, the report also concluded, far more than the $300,000 WSF estimated shortly after the incident.

The KING 5 Investigators first reported on the Nov. 4 accident shortly after it happened and revealed then that the fire was preventable. The accident while the boat was moored at Eagle Harbor Maintenance facility on Bainbridge Island.

According tothe WSF report, engine room crew members did not understand the specific requirements needed for the complicated work they were attempting to complete. The report found that ferry workers in the engine room and electricians at Eagle Harbor didn t communicate correctly with each other prior to starting the work. Ferry employees were attempting to clean portions of one of the boat s drive motors just before the meltdown, which caused smoke to billow out of the room housing the motor.

A total of 14 people were working on the vessel at the time of the accident. No one was injured.

The motor was so badly damaged it was beyond repair. A spare motor sitting in a WSF warehouse had to be shipped to Los Angeles to be refurbished by General Electric and is being now being installed in the Walla Walla by Vigor Industrial.

We conducted a thorough and detailed investigation into what happened and why, said David Moseley, Washington State Department of Transportation assistant secretary, ferries division. Safety is our number-one priority at WSF. We need to learn from these mistakes and focus on improving complex maintenance practices.

The Walla Walla is one of the biggest boats in the state s fleet. It can carry 2,000 passengers and 188 vehicles. It typically sails on the Seattle-Bremerton run or the Edmonds-Kingston run. Smaller replacement boats are filling in during the repair.

WSF is working to bring the Walla Walla back into service in April following sea trials.

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