What action should be taken when an incident occurs according to TSA requirements?

Notifying the TSA after an incident is essential because the TSA is responsible for ensuring security and safety at transportation facilities, including airports. Timely notification allows the TSA to assess the situation, evaluate any potential threats, and implement necessary follow-up actions or investigations. This protocol not only helps in maintaining security standards but also in coordinating with other agencies if needed.

The other options do not align with the TSA's requirements. Returning to normal operations immediately could compromise ongoing investigations or safety assessments that need to be conducted post-incident. Documenting the incident for internal review only limits the scope of information sharing that is critical for airport security and could hinder broader safety measures. Evacuating the premises might be a necessary immediate response in certain scenarios but is not a standardized action to take for all incidents according to TSA requirements.