Safety Flash
Failure of steel wire sling
Failure of steel wire sling
- IMCA
- Safety Flash
- IMCA SF 32/17
- Crane and RiggingInspection and MaintenanceLifting OperationsLine of Fire
- Line of fireMaterial fatigueMechanical failure
- Marine operations
- Lifting accessoriesWire rope
- Exclusion zones
- ConstructionOffshore wind
- Vessel
Summary
A steel wire sling connecting two vessels failed during offshore wind farm wire pulling, damaging rigging and the winch vessel. Investigation identified low-cycle fatigue, underestimated dynamic forces and an incorrect working load limit. The flash highlights termination efficiency, equipment certification checks, continuous digital load logging and the effective clear-deck instruction.
Classifications: Line of fire; struck-by hazards.
Classifications: Material fatigue; metal fatigue.
Classifications: Mechanical failure; equipment failure.
Classifications: Marine operations; maritime operations.
Classifications: Lifting accessories; lifting gear; rigging gear.
Classifications: Wire rope; steel wire rope.
Classifications: Exclusion zones; red zones; restricted access zones.
Classifications: Construction; construction industry.
Classifications: Offshore wind; offshore wind energy.
Classifications: Vessel; aboard ship; onboard vessel.
Summary
During offshore wind farm construction, pull wires were being laid.
IMCA SF 32/17. Themes: crane and rigging, inspection and maintenance, lifting operations, line of fire.