What is one example of a prescribed type HPI incident?

The identification of an unplanned ignition of gas dust as a prescribed type HPI incident is correct because it falls within the parameters of high potential incidents that are subject to strict regulatory scrutiny in the mining sector. High potential incidents are those which, if not managed effectively, could lead to serious accidents, injuries, or fatalities. An unplanned ignition indicates a significant risk that could escalate into a dangerous scenario, making it a reportable and critical incident under Queensland mining law.

In contrast, a planned breakdown of equipment, routine safety inspection, and equipment maintenance delay do not meet this threshold of danger. Planned breakdowns and routine inspections are typically conducted with safety controls in place and are thus managed risks that do not represent the same level of immediate danger as an unplanned ignition. Similarly, an equipment maintenance delay, while potentially problematic, does not typically equate to a direct and immediate risk of harm akin to an ignition incident.