When the inert gas system cannot maintain a positive pressure, what action should be taken regarding cargo operations?

When the inert gas system cannot maintain a positive pressure, it is essential to prioritize safety and the integrity of the cargo operations. The inert gas system is designed to prevent the formation of explosive mixtures of air and flammable gases, thereby reducing the risk of fire or explosion during cargo operations.

In situations where the inert gas system fails to maintain positive pressure, this indicates a potential risk of allowing atmospheric air to enter the tanks, which can significantly increase the risk of an explosive environment. Operating under such conditions could endanger the safety of the crew, the vessel, and the cargo.

Shutting down operations immediately is the most prudent action to ensure the safety of the vessel and its personnel. This measure allows for the evaluation and repair of the inert gas system, ensuring that a safe operating environment can be restored before any cargo handling resumes. This step is critical to prevent any dangerous situations from arising due to the lack of effective inerting.

Continuing operations while merely monitoring the situation or attempting to gradually reduce tank pressure could lead to catastrophic consequences if an explosive atmosphere develops. Increasing the oxygen level in the tank would directly contradict the safety principles of operating with an inert gas system, as it would further enhance the risk of combustion.

Thus, the correct approach when the inert