Description of Incident
A pin was required to be pulled on a hinge system for the dynamic gangway system on a walk-2-walk vessel. As part of this task metal wedges were used to hold some of the gangway components in place.
The job of pulling the pins was not going as expected due to space limitations, the effects of surface corrosion on the pins and the chosen method of pulling the pins.
While pulling the pin out, the metal wedge in place was dislodged and fell between the gangway components to the deck. No personnel were underneath the gangway at the time.
The height of the drop was approximately 13m.
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