The Passenger Ship "Royal Majesty"

On June 10, 1995, the passenger ship Royal Majesty grounded on a shoal about 10 miles east of Nantucket Island, Massachusetts, whilst on passage from Bermuda to Boston.
The report from the National Transportation Safety Board (NTSB/MAR-97/01
http://www.ntsb.gov/ publictn/1997/mar9701.pdf) focuses on determining how this vessel could travel, unknown to the crew, more than 17 miles off course.
The immediate cause of the grounding was clear - the failure of the officer of the watch to take corrective action, despite these warning signs - but it is the root causes, and the human element connotations, that are of interest.
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