Summary: Workers noticed a loss of air pressure from a mobile air compressor and smelled smoke. When they lifted the covers of the compressor, a small flame was found above the starter motor. This was extinguished with a hand-held fire extinguisher, as there was not enough heat to activate the onboard fire suppression. The battery terminal was also found to have been subjected to heat. The battery was removed to prevent further risk.
Recommendations to industry: Mine operators should review how maintenance is scheduled and completed. This should also include defect management.