Each entry made in the official logbook—

((1)) shall be made as soon as possible after the occurrence;

((2)) if not made on the day of the occurrence, shall be dated and state the date of the occurrence;

((3)) if the entry is about an occurrence happening before the vessel’s arrival at the final port of discharge, shall be made not later than 24 hours after the arrival;

((4)) shall be signed by the master; and

((5)) shall be signed by the chief mate or another seaman.