Safety Flash
Near-miss: ROV shackle (potential dropped object)
Near-miss: ROV shackle (potential dropped object)
- IMCA
- Safety Flash
- IMCA SF 18/13
- Crane and RiggingDropped ObjectsLifting Operations
- Dropped objectsMechanical failure
- Lifting operationsRiggingROV operations
- Lifting accessoriesRemotely operated vehicle
- Management of changePositive retention and reliable securingRisk assessmentSafety communication
- Marine industry
- Subsea
Summary
An ROV shackle pin partially disengaged during subsea boulder removal. The grab was safely landed before assessment, recovery and rigging changes. Potential causes included snagged R-clips and repeated rigging slackening. The flash discusses split-pin securing and, where possible, replacing ROV shackles with a direct bow-shackle and soft-sling arrangement.
Classifications: Dropped objects; falling objects; DROPS.
Classifications: Mechanical failure; equipment failure.
Classifications: Lifting operations; load lifting; hoisting.
Classifications: Rigging; slinging.
Classifications: ROV operations; remotely operated vehicle operations.
Classifications: Lifting accessories; lifting gear; rigging gear.
Classifications: Remotely operated vehicle; ROV; underwater robot.
Classifications: Management of change; MOC; change management.
Classifications: Positive retention and reliable securing.
Classifications: Risk assessment; hazard assessment.
Classifications: Safety communication; toolbox talk; toolbox talks.
Classifications: Marine industry; shipping industry; maritime sector.
Classifications: Subsea; underwater worksite.
Summary
A member has reported a near miss incident in which an ROV shackle holding a boulder grab became loose and the pin partially disengaged.
IMCA SF 18/13. Themes: crane and rigging, dropped objects, lifting operations.