IMCA Safety Flash SF 28/23
IMCA Safety Flash 23/28
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NTSB: Lithium-ion battery fire destroys vessel bridge 
The National Transportation Safety Board of the United States (NTSB) has published report MIR-23-23 relating to a Lithium-ion battery fire aboard a tanker. This incident highlights some of the risks and hazards associated with modern battery technologies and is highlighted to members as a matter of importance requiring further attention and discussion. Members are encouraged to download and read the full report.
What happened
A fire started on the bridge of an oil tanker whilst alongside. Fire teams from the vessel extinguished the fire in less than half an hour after it had begun. There were no injuries, but the damage caused to the vessel was estimated at US$3 million. There was extensive smoke and heat damage, and the vessel’s navigation systems, communication systems, and alarm systems were destroyed.
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LTI: gangway collapsed 
What happened
A person was badly injured when a gangway collapsed as he was using it. The incident occurred when the injured person requested permission to leave Vessel 2, which was moored outside of and alongside Vessel 1, which was alongside in a shipyard. The injured person was unaware that Vessel 1 was undergoing engine tests, and the gangway was not in use. However, the gangway had not been removed completely, due to scaffolding structure being in the way. There was no gangway watch nor were there any signs and barriers in place. As the injured person started to walk down the gangway, it collapsed causing the person to fall and break both heels. Medical evacuation was arranged and fracture of both heels was confirmed afterward.
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LTI: Fingers injured during fender lifting operation 
What happened?
A crew member suffered severe injuries to two fingers during fender lifting operations. The injuries occurred while hauling up the webbing slings with a (13mm (half-inch) polypropylene rope so that a Yokohama fender, weighing approx. 415 kg, could be lifted to deck.
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MAIB: Electrician injured in explosion 
The UK Marine Accident Investigation Branch has published Safety Digest 2/2023, consisting of lessons from recent Marine Accident Reports. IMCA has reviewed the report and passes on to members, as some of the incidents in the MAIB report will be of interest. This is one of them.
What happened
An electrician was badly injured while working on a switchboard. The circuit breaker was designed to be removed without the need to isolate the base unit (Figure 1);
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MAIB: Shifting of centre-of-gravity of load 
The UK Marine Accident Investigation Branch has published Safety Digest 2/2023, consisting of lessons from recent Marine Accident Reports. IMCA has reviewed the report and passes on to members, as some of the incidents in the MAIB report will be of interest. This is one of them.
What happened
A research vessel was unloading in port and crew had made a plan to offload a 20ft open-top container, which was filled with various pieces of equipment. A mobile crane on the jetty was being used to unload the ship; the crew prepared the lifting gear and attached four chains to the crane hook from the lifting lugs at each corner of the base of the container.
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