The CHPP operator was accessing the conveyor tunnel to restart a sump pump in preparation for cleanup activities (a coal spill had occurred due to a vibratory feeder continuing to run when the conveyor stopped).

While walking down the tunnel (inclined and narrow access), the operator slipped, landing on his left arm. A fracture of the humerus (arm) was confirmed.

Water sprays had been recently used in the area to clean the tunnel which had made the walkway surface wet.

“When designing and installing conveyor systems, mine operators need to consider the risks associated when walking or working alongside conveyor systems,” Mine Safety said.

“Walkways should be designed so that persons can walk normally without impediment. Furthermore, conveyor systems should also include appropriate guarding (compliant with Australian standards), hand rails and non-slip surfaces for steep grades.”