Engine fumes kill two
Warnings follow couple in gas tragedy
The Marine Accident Investigation Branch (MAIB) rushed out a safety bulletin after the tragic deaths of two people and their dog from carbon monoxide (CO) poisoning on the Norfolk Broads.
A spate of recent CO deaths meant that the MAIB felt obliged to react now rather than waiting for the results of its full investigation to be made public.
Unlike other recent incidents of CO poisoning, the source of the deadly gas appears to have been the boat’s own engine rather than an auxiliary generator or heater. The Doral 250 SE motor cruiser, Love for Lydia, was moored at a quiet river island location when engine fumes seeped into the cuddy cabin.
The sportscruiser’s 5.7-litre V8 petrol engine had been left running at 3,000rpm while it was moored alongside, probably to charge the batteries. A slight wind blowing from the stern caused exhaust gas exiting below the transom to enter the fulllength canopy covering the cockpit. From there, it spread down into the forward accommodation area.
With all the hatches closed, the concentration of CO reached dangerous levels in under three minutes. The couple and their dog were rapidly overcome by the invisible and odourless fumes. No carbon monoxide alarms were present.
Previous MAIB recommendations put forward in 2015 included changing the Recreational Craft Directive (RCD) to include the fitting of a carbon monoxide detector on all new-build craft at first point of sale. The move was rejected by the Department for Business, Innovation & Skills.
The Gas Industry Safety Group added its voice to the safety calls. “These tragic deaths are a stark reminder that many people remain completely unaware of the dangers of CO,” said GISG chairman Chris Bielby.
“Boaters should be aware that as well as engine fumes, carbon monoxide can be produced by appliances such as cookers, portable generators, BBQS, or bottled gas lamps. CO is a highly dangerous toxic gas that has no smell, taste or colour and is produced by any fossil fuel that burns incompletely. In the confined space of a boat cabin, it’s vital that the occupants ensure there is adequate ventilation and they are protected by an audible CO alarm compliant with the safety standard BS EN 50291-2”.
GISG urges greater vigilance where fossil fuels are being burned. An audible CO alarm and ensuring appliances are correctly installed, maintained and used is paramount.