After departing from Swartz Bay terminal, the British Columbia Ferry
Corporation (BCFC) vessel "MAYNE QUEEN" experienced a steering failure,
veered sharply to port off the mid-channel, and grounded. Three of the
ferry's four propulsion units sustained extensive damage. A small leak
of hydraulic oil was immediately contained by booms. No one was injured
in this occurrence, and the ferry was refloated on the same day during
a rising tide.

http://www.tsb.gc.ca/en/reports/marine/1996/m96w0175/m96w0175.asp