Alaska state ferry Columbia tied up for repairs

UPDATE: Friday, June 23 —

“Vigor removed the leaky valve manifold and is fabricating a new one.  They are on schedule for installation and testing on Monday, June 26. Divers inspected the bow thruster and no blockages or obstructions were located. The bow thruster issue required consulting its UK-based manufacturer, and was narrowed down to a sensor called a potentiometer.  The sensor is functional, but due to loose clamps, it had rotated approximately 90 degrees, causing a fault.  The sensor is being repositioned and they’ll test the bow thruster today.”

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