When should the TSB be notified of a reportable aviation accident?

The correct answer highlights that the Transportation Safety Board (TSB) must be notified when any of the specified conditions for a reportable aviation accident exist. This aligns with aviation regulations which dictate that accidents involving serious incidents, significant injuries, or loss of life need to be reported immediately, regardless of the severity of the accident. The regulations are designed to ensure that appropriate measures can be taken promptly, including investigations aimed at improving aviation safety.

By notifying the TSB under the correct conditions, investigators can gather essential information and evidence soon after an event occurs, which is crucial for determining the causes of an accident and preventing future occurrences. The emphasis on "any of the specified conditions" underlines the importance of understanding the specific criteria outlined in aviation regulations, ensuring compliance and proper safety management practices.

In contrast, minor injuries alone are not sufficient for notification, the completion of an investigation is too late for an initial report, and only notifying upon request from legal authorities does not align with proactive regulatory requirements. It is vital for pilots and operators to be aware of these reporting criteria to uphold safety standards in aviation.