Incident date: 2020-02-04
NAICS industry code: 238310

An employee had completed measuring the second floor of a new residential construction project for insulation and was stepping onto the top tread of a temporary staircase to go down to the first floor. When he stepped down and placed body weight onto the top tread, the staircase gave way, causing him to fall approximately 16 feet into the basement. He struck the back of his head on the basement floor or plywood on the first floor, rendering him unconscious. He received four broken ribs, a broken scapula, a broken clavicle, and broken vertebrae.

Hazard classification:
code_event: title: Fall from collapsing structure or equipment 16 to 20 feet
code_source: title: Stairs, steps-indoors
code_nature: title: Fractures
code_body: title: Multiple body parts, n.e.c.
severity: moderate