The Undocking Certificate, which is signed by the Commanding Officer, contains statements to the effect that the various underwater fittings of the ship, such as seacocks, bottom-logs, sonar domes, submerged torpedo-tubes and their sea connections, are shut and in good working order.
Isatifikethi sokumka ezibukweni sisayinwa ngumphathi kwaye siqulathe iziqinisekiso zokuba zonke imbobo zamanzi ezinge ngezi vingco, iziqu zomthi ezisemazantsi enqanawa, izixhobo zokufumana into ephantsi kwamanzi, imibhobho yembumbulu kunye nezinto zokunxibelelana elwandle zivaliwe kwaye zikumgangatho ofanelekileyo.