Reports indicate that the captain oof the new Coast Guard icebreaker was temporarily relieved of command after an accident that dented the $90 million ship.
As the Mackinaw floated into the Grand Haven Channel on Monday, the 240-foot ship slowly turned and rammed the breakwall on Lake Michigan
. The accident left an 8-by-3-foot dent in the ship's starboard bow. Part of the breakwall may also require repairs, the Coast Guard said Thursday.
An investigation is under way, but Capt. Donald Triner said a junior crew member had made a steering mistake, the Coast Guard said.
The Coast Guard took possession of the ship in mid-November. It was making a tour of Great Lakes cities when the mishap occurred.