When a fan stops and ventilation is restored within 15 minutes, what should happen next?

Once ventilation is restored within 15 minutes after a fan stops, the area must be re-examined by a certified person. This step is crucial because the temporary loss of ventilation can lead to hazardous conditions, such as the accumulation of toxic gases or insufficient oxygen levels. Having a qualified individual assess the area ensures that it is safe for workers to return and that any potential dangers have been addressed thoroughly. The re-examination also serves to validate that the ventilation system is functioning properly again, which is vital for maintaining safety standards in the mine.