What is a critical action to take when a fire breaks out on board?

Identifying the type of fire is crucial because different types of fires require different approaches to extinguish them effectively and safely. Fires are classified into categories based on the materials that are burning — such as ordinary combustibles, flammable liquids, electrical equipment, and metals. Understanding what type of fire it is allows personnel to choose the appropriate firefighting method or extinguishing agent.

For example, using water on an electrical fire can result in electrocution or spreading the fire, while attempting to extinguish a grease fire with water can cause the fire to flare up dramatically. Knowing the nature of the fire ensures that actions taken are not only effective but also minimize the risk to personnel aboard the vessel. Thus, identifying the type of fire is a critical first step in firefighting procedures.

While ensuring exits are clear, starting a fire suppression system, and evacuating personnel are all important actions, they should follow the initial assessment of the fire type to ensure the safety and effectiveness of the response.