Safety Flash
Failure of a shackle
Failure of a shackle
- IMCA
- Safety Flash
- IMCA SF 07/01
- Crane and RiggingLifting OperationsLine of Fire
- Line of fireMechanical failure
- Lifting accessoriesWire rope
- Exclusion zonesMachine guardingOperating and work procedures
- Marine industry
- Vessel
Summary
A shackle failed while an abandonment and recovery wire was spooled off a winch, striking an observer’s thigh. Increased loading was attributed to inadequate connection flexibility and torsional strength. The vessel changed to a spliced connection; further actions addressed connection design, keeping personnel clear of tensioned wires and guarding.
Classifications: Line of fire; struck-by hazards.
Classifications: Mechanical failure; equipment failure.
Classifications: Lifting accessories; lifting gear; rigging gear.
Classifications: Wire rope; steel wire rope.
Classifications: Exclusion zones; red zones; restricted access zones.
Classifications: Machine guarding; machinery guards; machine guards.
Classifications: Operating and work procedures.
Classifications: Marine industry; shipping industry; maritime sector.
Classifications: Vessel; aboard ship; onboard vessel.
Summary
A shackle failed under increased load and struck a worker, prompting redesigned flexible connections and exclusion from tensioned wires.
IMCA SF 07/01. Themes: crane and rigging, lifting operations, line of fire.