What type of event at a mine does NOT classify as an accident?

When classifying events at a mine, an event that does not lead to personal injury or affect employees is typically not categorized as an accident. In the case of an equipment failure without personal injury, it may pose risks or eventually lead to an accident, but as long as no individuals are harmed, it remains a maintenance or operational issue rather than an accident that impacts worker safety directly.

Accidents are usually defined by their immediate effects on personnel, such as injuries, fatalities, or entrapments. Serious injuries requiring hospitalization, unplanned roof falls that trap workers, and deaths resulting from onsite incidents all involve significant risk to employee safety and well-being, thereby classifying them as accidents. In contrast, equipment failures that do not result in injury represent operational challenges rather than accidents, making this scenario the exception in defining accidents within the mine.