BAINBRIDGE ISLAND, Wash. (AP) — Three agencies are investigating a fire that damaged an engine room aboard the state ferry Wenatchee. The vessel had been undergoing sea trials on April 22 when one of its recently rebuilt engines caught fire. No passengers were aboard the vessel at the time and no crew members were injured in the blaze. The vessel was towed back to a maintenance facility in Bainbridge Island’s Eagle Harbor for work. Washington State Ferries, the Coast Guard and the National Transportation Safety Board are investigating the incident. No damage estimates were available Monday.