Safety Flash
Dropped object – Crane auxiliary block dropped from crane boom
Dropped object – Crane auxiliary block dropped from crane boom
- IMCA
- Safety Flash
- IMCA SF 10/21
- Crane and RiggingDropped ObjectsLifting Operations
- Dropped objectsMechanical failure
- Inspection and maintenanceLifting operations
- CraneWire rope
- Exclusion zonesOperational supervisionPermit to workRisk assessment
- Marine industry
- Vessel
Summary
A vessel crane’s 30 kg auxiliary block fell approximately 30 metres onto the main deck during preparations for load and rock testing. Double blocking and failed overload protection were identified. The flash discusses permit controls, restricted deck access, daily crane checks and banksman positioning, including additional spotters where applicable.
Classifications: Dropped objects; falling objects; DROPS.
Classifications: Mechanical failure; equipment failure.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Lifting operations; load lifting; hoisting.
Classifications: Crane; cranes.
Classifications: Wire rope; steel wire rope.
Classifications: Exclusion zones; red zones; restricted access zones.
Classifications: Operational supervision.
Classifications: Permit to work; PTW; work permit.
Classifications: Risk assessment; hazard assessment.
Classifications: Marine industry; shipping industry; maritime sector.
Classifications: Vessel; aboard ship; onboard vessel.
Summary
Two sub-contracted crane technicians were mobilised to the vessel to inspect the pipelay system 15Te crane before a load and rock test of the crane took place.
IMCA SF 10/21. Themes: crane and rigging, dropped objects, lifting operations.