Overview
This retrieval concept groups serious precursor events where the vessel narrowly avoided grounding, collision, or allision. These cases are useful because they preserve the causal pattern without requiring actual contact or loss.
Common themes
- late detection of a developing track or maneuvering error
- pilot, tug, anchor, or engine action recovering the situation
- strong environmental forces reducing safety margin
- high consequence potential despite no physical contact
Related concepts
Related incidents
Accidents linked to this concept are grouped by vessel type.