Incident date: 2022-04-27
NAICS industry code: 541330

The injured employee was moving mud boxes within a tunnel operation using a locomotive. An overhead crane was used to bring the loaded boxes out of the shaft. A loaded mud box was still attached to a locomotive when it was hoisted by the overhead crane and raised about 3 to 4 feet. The hitch broke causing the locomotive to drop to the bottom of the shaft and the operator's chest struck the control panels. The locomotive operator suffered a broken rib and internal bruising and was hospitalized.

Hazard classification:
code_event: title: Fall from collapsing structure or equipment less than 6 feet
code_source: title: Cranes-gantry, overhead, monorail, container
code_nature: title: Fractures
code_body: title: Chest, except internal location of diseases or disorders
severity: moderate