What action is necessary if equipment parameters are exceeded?

When equipment parameters are exceeded, notifying the engineering department is a critical action to ensure safety and maintain operational integrity. The engineering department has the expertise to evaluate the situation and determine the necessary steps to address potential issues that could arise from continued operation under abnormal conditions.

Engaging with the engineering team allows for a thorough assessment of the risks involved and helps in making informed decisions about whether to continue using the equipment, modify operational protocols, or halt operations altogether. Additionally, they may recommend inspections or repairs to prevent future occurrences.

In the context of the other choices, ignoring the situation could lead to equipment failure or safety hazards, and requesting approval from a commanding officer would delay addressing the immediate risk. While discontinuing equipment use can be necessary, it's important to first assess the situation with the help of qualified personnel before taking such drastic measures.