Blocked fixed CO2 fire extinguishing system pilot hoses
On 19 September 2021, a fire broke out in the auxiliary engine room on board a roll-on/roll-off cargo ship departing a UK port. In an attempt to extinguish the fire, the ship’s crew activated the machinery space’s carbon dioxide (CO2) fire extinguishing system, but only half of the system’s gas cylinders opened. The initial investigation identified that one of the CO2 system pilot hoses was blocked due to a manufacturing defect. Several coupling leaks were also found in the pilot lines.
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