Which of the following aspects is NOT included when defining an accident?

When defining an accident, scheduled maintenance tasks typically do not qualify as accidents. An accident is generally characterized by an unexpected event that results in harm, injury, or damage. Scheduled maintenance is a routine activity performed to ensure the safe and effective operation of equipment and systems; it is planned and typically does not involve unforeseen incidents.

In contrast, the other options represent situations that can be classified as accidents. Entrapment of an individual, particularly for an extended period, indicates an emergency that may require rescue efforts and can lead to serious consequences. The death of an individual at a mine is a tragic outcome that clearly falls under the definition of an accident. Serious personal injuries also qualify as accidents because they involve sudden and unintended incidents that lead to harm.

Understanding these distinctions is essential for safety protocols and reporting in environments like mines, where both the nature of work and potential hazards require careful analysis and response.