Which type of aircraft incidents are deemed reportable by the TSB?

The Transportation Safety Board (TSB) of Canada requires reporting of certain types of incidents to ensure aviation safety is maintained and thoroughly investigated. Among the provided options, circumstances involving missing aircraft are classified as reportable incidents. This stems from the critical nature of such occurrences, as they may indicate underlying safety issues that need to be addressed.

When an aircraft is reported missing, it often triggers a significant search and response operation, along with investigations to determine what went wrong. The aim is to gather information that can prevent future incidents and enhance overall air travel safety. Understanding the circumstances surrounding missing aircraft helps aviation authorities evaluate risks and implement necessary safety measures.

In contrast, while technical malfunctions, fuel shortages, and unauthorized takeoffs may pose safety risks, they may not always meet the threshold for formal reporting to the TSB unless they result in an accident or have a serious impact on safety. This distinction highlights the prioritization of incidents that present the most critical potential threats to safety within the aviation framework.