Safety Flash
Crane boom stopper fell to main deck
Crane boom stopper fell to main deck
- IMCA
- Safety Flash
- IMCA SF 12/23
- Crane and RiggingDropped ObjectsInspection and Maintenance
- Dropped objectsMechanical failure
- Inspection and maintenance
- Crane
- Positive retention and reliable securingPreventive maintenance
- Marine industry
- Vessel
Summary
A vessel crane’s knuckle boom stopper pad detached during slewing in preparation for use. The 15.5 kg component fell 35 m to the main deck without injuring anyone. The flash describes its adhesive-only attachment, subsequent mechanical securing, and recommendations for additional fixings and inspection of difficult-to-access dropped-object hazards.
Classifications: Dropped objects; falling objects; DROPS.
Classifications: Mechanical failure; equipment failure.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Crane; cranes.
Classifications: Positive retention and reliable securing.
Classifications: Preventive maintenance; preventative maintenance; planned maintenance.
Classifications: Marine industry; shipping industry; maritime sector.
Classifications: Vessel; aboard ship; onboard vessel.
Summary
A knuckle boom stopper pad fell to the main deck directly below the knuckle boom; no personnel were injured - however, there was potential for serious or fatal injury
IMCA SF 12/23. Themes: crane and rigging, dropped objects, inspection and maintenance.