Safety Flash
Use of spelter sockets
Use of spelter sockets
- IMCA
- Safety Flash
- IMCA SF 02/08
- Crane and RiggingInspection and MaintenanceLifting Operations
- Dropped objectsMechanical failure
- Diving operationsRigging
- Lifting accessoriesWire rope
- Positive retention and reliable securing
- Marine industry
- Vessel
Summary
A diving bell guide weight detached from a wire-rope termination aboard a dive support vessel, requiring subsea ROV intervention for recovery. The load-pin detachment mechanism remained unknown. The flash encourages closed sockets where possible and recommends screwed pins with nuts and split cotter pins for subsea lifting or exposure to side impact.
Classifications: Dropped objects; falling objects; DROPS.
Classifications: Mechanical failure; equipment failure.
Classifications: Diving operations; diving; commercial diving.
Classifications: Rigging; slinging.
Classifications: Lifting accessories; lifting gear; rigging gear.
Classifications: Wire rope; steel wire rope.
Classifications: Positive retention and reliable securing.
Classifications: Marine industry; shipping industry; maritime sector.
Classifications: Vessel; aboard ship; onboard vessel.
Summary
A diving bell guide weight detached after failure of a spelter socket connection, prompting recommendations on suitable socket and pin types.
IMCA SF 02/08. Themes: crane and rigging, inspection and maintenance, lifting operations.