What happened?
A crew member felt faint and subsequently collapsed after working in a confined space. The incident occurred following the work of a four-person team on rust removal maintenance of the water ballast tanks. The team spent the day removing bottom sediments and rust scales in a tank and came out in the late afternoon for dinner. One crew member stated that he felt dizzy and was experiencing a headache and blurred vision. The team assumed dehydration was the cause and proceeded to return to their cabins in preparation for dinner. During the elevator ride to the upper deck, the crew member fainted.
