The captain of the US ferry Iyanough mistook a metal pole and two boat masts for buoys moments before a serious allision with a breakwater.
The 16 June accident at Hyannis Harbor involving the 393-pax ship (built 2007) injured 15 people.
The ferry's owner, Woods Hole, Martha’s Vineyard and Nantucket Steamship Authority, said a preliminary probe showed the pole at the end of the breakwater and the two sailboats were in the exact pattern of buoys 4, 5 and 6 that mark the entrance into the harbour.
