5.2.1 All doorways and other openings, through
which water can enter into the hull or deckhouses, forecastle, etc.,
should be suitably closed in adverse weather conditions and accordingly
all appliances for this purpose should be maintained on board and
in good condition.
5.2.2 Weathertight and watertight hatches, doors,
etc., should be kept closed during navigation, except when necessarily
opened for the working of the ship and should always be ready for
immediate closure and be clearly marked to indicate that these fittings
are to be kept closed except for access. Hatch covers and flush deck
scuttles in fishing vessels should be kept properly secured when not
in use during fishing operations. All portable deadlights should be
maintained in good condition and securely closed in bad weather.
5.2.3 Any closing devices provided for vent pipes
to fuel tanks should be secured in bad weather.
5.2.4 Fish should never be carried in bulk without
first being sure that the portable divisions in the holds are properly
installed.