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What happened?
A vessel rigging crew was unhooking the emergency response equipment from a crawler crane onto another vessel.
They heard a loud noise on the stern deck.
The 1.1lbs (0.5 kg) safety latch of the main block hook had fallen 150ft (45m) from the crane to the stern deck.
It landed in an unbarricaded area,19.5ft (6m) from the crew basket landing area.
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Why did it happen?
It was noticed earlier that day that the hook of the main block was entangled with the boom protection (made out of rope) of the crawler crane, but although reported, it was not inspected prior to use due to other work priorities.
The workers did not realise the potential impact of a dropped object.
The crane block was not stored correctly to eliminate entanglement hazards (such as safety latches, hooks, blocks, travelling stands).
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What did they learn?
A stop work authority should have been initiated immediately when noticing the hook of the main block was entangled with the boom protection of the crawler crane.
Ensure crane boom protection design does create an entanglement hazard.
All lifting and rigging teams should examine their equipment for entanglement and any other hazards. If any hazards are discovered, a mitigation plan should be put in place.
If a crane block is not in use, it should be stored appropriately to eliminate any entanglement hazards (safety latches, hooks, blocks, traveling stands).
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Ask yourself or your crew
What should you do if you notice something out of place during today’s lifting task? Who do you report it to?
What impact does equipment storage have on it being fit for purpose?
How much damage can an object weighing 1lb (0.5 kg) can do when it is dropped 150ft (45m)?
What hazards should you be aware of in your role?
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What happened?
A vessel rigging crew was unhooking the emergency response equipment from a crawler crane onto another vessel.
They heard a loud noise on the stern deck.
The 1.1lbs (0.5 kg) safety latch of the main block hook had fallen 150ft (45m) from the crane to the stern deck.
It landed in an unbarricaded area,19.5ft (6m) from the crew basket landing area.
Why did it happen?
It was noticed earlier that day that the hook of the main block was entangled with the boom protection (made out of rope) of the crawler crane, but although reported, it was not inspected prior to use due to other work priorities.
The workers did not realise the potential impact of a dropped object.
The crane block was not stored correctly to eliminate entanglement hazards (such as safety latches, hooks, blocks, travelling stands).
What did they learn?
A stop work authority should have been initiated immediately when noticing the hook of the main block was entangled with the boom protection of the crawler crane.
Ensure crane boom protection design does create an entanglement hazard.
All lifting and rigging teams should examine their equipment for entanglement and any other hazards. If any hazards are discovered, a mitigation plan should be put in place.
If a crane block is not in use, it should be stored appropriately to eliminate any entanglement hazards (safety latches, hooks, blocks, traveling stands).
Ask yourself or your crew
What should you do if you notice something out of place during today’s lifting task? Who do you report it to?
What impact does equipment storage have on it being fit for purpose?
How much damage can an object weighing 1lb (0.5 kg) can do when it is dropped 150ft (45m)?
What hazards should you be aware of in your role?
A vessel rigging crew was unhooking the emergency response equipment from a crawler crane onto another vessel when the safety latch of the main block hook fell 150ft (45m) to the stern deck below.
