Confined spaces: Silent and invisible killers

A Transocean drilling rig. Transocean photo

Last week, the Coast Guard released a Marine Safety Alert, “Confined Spaces: Silent & Invisible Killers.”

The alert (Safety Alert 04-19) serves as a reminder that despite decades of work by to improve confined space entry by maritime safety organizations, training institutions, and vessel owners/operators, the risks have not been eliminated.

This is illustrated by a recent casualty where three persons were asphyxiated while working onboard a laid-up mobile offshore drilling unit (MODU). Although...

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