In a navigation of a vessel within a port area, pilotage is one of hazards, which might cause a harmful consequence such as grounding (Trbojevic and Carr, 2000). Trbojevic and Carr (2000) divide pilotage error into the two different errors by the pilot noticing an inappropriate command and by the ship’s crew failing to execute the appropriate command of the pilot. Darbra et al. (2007) attempted to outline the safety culture of pilots by interviewing 77 pilots in Australia and New Zealand.