[Discription of Incident]
This accident occurred during work to discharge fumigation gas by opening
the ship's hatch after fumigation of lumber.
On the day of the accident at 11:15 a.m., the concentration of gas in a
ship's hold where fumigation had been conducted on the previous day was
measured in the presence of a health official. As the effect of fumigation
was confirmed as a result of this measurement, two workers and three security
personnel started work to open the hatche of each hold under the supervision
of the operations chief, who was the victim.
Under the instruction of the victim, two workers went towards the bow and
opened the hatches of holds No.1 through No.4 successively.
The victim went to the
starboard with three seamen, and instructed them to open and close the hatches
while the victim supervised their work.
Upon the completion of
work to open the hatch of the last hold (No. 4 hold), two workers went back to
the bridge after directing the three seamen who had returned (who were
conducting the work together with the victim) to a safe place.
Although they did not
see the victim at this time, they thought that he was making a final
conformation of the opening work.
However, as time passed
and the victim still did not show up, they started looking around the ship for
him at 11:50 a.m., but could not find him. They then went to the office as they
thought the victim may have gone to the office to report on the completion of
fumigation work, but could not find him there.
This raised the concern of those present - including the general manager
of the branch - who returned to the ship and went out in several parties
to search for the victim. They found a hatch open on the deck. When they
looked into the hold from this hatch, they saw the victim lying on his
back wearing a gas mask.
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