HMCS Corner Brook ran aground in Nootka Sound off the coast of Vancouver Island on 4 June 2011, while conducting SOCT. Unexpected use of template {{21}} - see Template:21 for details. Minor injuries were sustained by two crew members and the submarine returned to CFB Esquimalt after the incident without escort or further incident.[21] A board of inquiry into the incident deemed commanding officer, Lieutenant Commander Paul Sutherland, had responsibility for safe navigation of the submarine and was relieved of his command.