Washington State Ferries board of inquiry report if collision with sailing vessel (referred to as m/y Tasya as under engine not sail at time of incidence)
News release
http://www.wsdot.wa.gov/News/2013/11/Hyak_111313.htm
Full report
http://www.wsdot.wa.gov/NR/rdonlyres/767E130A-4A93-4799-A9F3-3DB924D97A37/95262/HyakReportforWeb.pdf