Investigation Report
Collision between the stern trawler Karen and a dived Royal Navy submarine
Collision between the stern trawler Karen and a dived Royal Navy submarine
- MAIB
- Investigation Report
- DivingMarine Operations
- Human factorsIncident investigationVessel collision
- Fishing operationsNavigation
- Navigation and positioning equipmentWinchWire rope
- Competence and trainingEmergency responseOperating and work proceduresSafety communication
- Commercial fishing
- Marine watersVessel
Summary
Investigation of a submerged Royal Navy submarine snagging Karen’s trawling gear in the Irish Sea. It examines mistaken acoustic classification, passive-sonar limitations, passage appraisal, warp and winch behaviour, and the crew’s response. Restricted access to primary evidence limited causal findings; recommendations address submarine procedures, training and fishing-vessel guidance.
Classifications: Human factors; human performance; ergonomics.
Classifications: Incident investigation; accident investigation.
Classifications: Vessel collision; ship collision; marine allision.
Classifications: Fishing operations.
Classifications: Navigation; vessel navigation; passage planning.
Classifications: Navigation and positioning equipment; ECDIS; AIS; chart plotters.
Classifications: Winch; winches.
Classifications: Wire rope; steel wire rope.
Classifications: Competence and training; competency assurance; safety training.
Classifications: Emergency response; emergency preparedness.
Classifications: Operating and work procedures.
Classifications: Safety communication; toolbox talk; toolbox talks.
Classifications: Commercial fishing.
Classifications: Marine waters.
Classifications: Vessel; aboard ship; onboard vessel.
Themes: diving, marine operations.