The relatively inexperienced operator was not injured and extricated unassisted.
Broadmeadow East is in a premier mining region, close to infrastructure.
Unit costs had benefited from lower diesel prices and deferred costs in 2020.
The operator did not have time to activate the fire suppression system.
This is the fifth successful certification application in the past three years by a Glencore site.
Executive deputy chairman Craig Ransley will become executive chairman.
The review would build on NSW's approach to health issues in the coal mining industry.
The miner slewed to the left, which caused the boom of the miner to move in a sideways direction.
The NSW Resources Regulator said the operator was uninjured.
The fall was in an outbye area of the mine and extended into the cut-through.
This technology is revolutionary and a first for Australia.
Australian mines generally require wider barrier pillars to protect the main roadways.