Concepts

Breakaway / Mooring Failure

This concept groups cases where a vessel breaks free from its berth, moorings, or restraint arrangement and begins drifting or moving without intended control. It is broader than any single incident classification because the breakaway may escalate into a terminal accident, allision, collision, or grounding.

Overview

This concept groups cases where a vessel breaks free from its berth, moorings, or restraint arrangement and begins drifting or moving without intended control. It is broader than any single incident classification because the breakaway may escalate into a terminal accident, allision, collision, or grounding.

Common themes

wind, current, or draft change increasing line loads
inadequate mooring plan, brake setting, or line tending
loss or absence of tug, anchor, or berth-side recovery margin
secondary collision, allision, or grounding after the breakaway starts

Accidents linked to this concept are grouped by vessel type.