Incident date: 2016-11-04
NAICS industry code: 237990

An employee was going to install bolts onto plates on furnaces located on the third level when he stepped on a piece of metal stair grating that had not been welded down. The grating flipped and the employee fell through the opening to the stair landing 7 feet below, suffering a fractured L1 vertebra.

Hazard classification:
code_event: title: Fall through surface or existing opening 6 to 10 feet
code_source: title: Stairs, steps-indoors
code_nature: title: Fractures
code_body: title: Lumbar region
severity: moderate