1 Operational tests of watertight doors, sidescuttles,
valves and closing mechanisms of scuppers, ash-chutes and rubbish-chutes shall take
place weekly. In ships in which the voyage exceeds one week in duration a complete set
of operational tests shall be held before the voyage commences, and others thereafter at
least once a week during the voyage.
2 All watertight doors, both hinged and power
operated, in watertight bulkheads, in use at sea, shall be operated
daily.
3 The watertight doors and all mechanisms and
indicators connected therewith, all valves the closing of which is
necessary to make a compartment watertight and all valves the operation
of which is necessary for damage control cross connections shall be
periodically inspected at sea at least once a week.
4 A record of all operational tests and inspections
required by this regulation shall be recorded in the logbook with an explicit record of
any defects which may be disclosed.