Misfire at Qld mine due to damaged lead

A NON-electric surface lead damaged by flyrock has caused 49 holes to misfire during an overburden blast at a Queensland open cut coal mine.

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Misfire at Qld mine due to damaged lead Misfire at Qld mine due to damaged lead Misfire at Qld mine due to damaged lead Misfire at Qld mine due to damaged lead Misfire at Qld mine due to damaged lead

All holes fired at the second attempt.

The post blast inspection identified the damaged non-electric surface lead.

The Queensland Mines Inspectorate said inspections confirmed the misfire could be reconnected and fired.