What action must be taken if an individual breaks the TPC rule to save lives or equipment?

When an individual breaks the TPC (Technical Procedures and Controls) rule to save lives or equipment, it is imperative to report the violation. This action ensures that the breach of protocol is formally acknowledged and documented within the organization's safety and compliance framework. Reporting provides a mechanism for evaluating the circumstances that led to breaking the rule, allows for assessments of the effectiveness of the procedures in place, and facilitates any necessary updates to policies to prevent future incidents.

In high-stakes environments, such as those involving nuclear materials or operations, maintaining clear communication regarding such violations is crucial for operational integrity, safety, and continuous improvement. It ensures that all personnel are informed about what occurred and can learn from the incident to enhance safety measures moving forward.

The other options do not adequately address the need for accountability and learning from the situation. Simply not taking action, documenting it privately, or only alerting fellow personnel could lead to misunderstandings or repeat incidents, potentially endangering others in the future. Therefore, reporting the violation is the most responsible and effective course of action.