While loading bulk liquid cargo, a tank valve jams open, what is the first action you should take?

When a tank valve jams open while loading bulk liquid cargo, the first action that should be taken is to order the shore facility to shut down. This is critical for several reasons. A jammed open valve can lead to an uncontrolled discharge of liquid cargo, creating a significant risk of spill, fire, or explosion, depending on the nature of the cargo. Immediate communication with the shore facility allows for the prompt cessation of loading operations, minimizing the potential impact of any emergency situation.

Shutting down the loading process can mitigate risks not only to the vessel but also to the surrounding environment and any personnel who may be in the vicinity. Safety protocols in the industry prioritize immediate containment of potential hazards over other considerations. While other actions, like running out the fire hose or disabling deck scuppers, could be part of a response plan, they are secondary to stopping the flow of cargo, which is the primary concern when a valve malfunction occurs.