Haul truck operators have been reminded to always wear their seatbelts while driving, in the latest significant incident report from the Department of Mines and Petroleum.
The report outlines a fatality incident which occured at Hanking Gold's Cornishman Pit on 6 September, in which a haul truck rolled onto its side, causing the driver to fall 3.75 metres to the ground.
The truck was reported to have been hauling waste rock from an open pit to the waste dump, however the DMP has been unable to identify why the operator failed to negotiate a slight left hand bend in the haul road, causing the vehicle to collide with a solid rock windrow.
Both left hand tyres drove up the windrow, causing the truck to tip onto the right hand side and the driver to fall from the seat.
There was no evidence of braking, either before or at the time of the collision, found by investigators at the scene.
It is understood that two workers heard the collision, one of whom ran to assist, and despite the efforts of colleagues and emergency services, the driver died shortly after the incident.
The report said the truck and seat belt were both found to be in full working order.
The DMP has reminded employers and mine managers that seat belts and anchorage points must conform to Australian Design Rules, and that drivers and passengers must properly adjust and securely fasten their seat belt.
Workers must also be instructed on the importance of seat belt use to reduce the impact of potential collisions.