Incident date: 2017-04-28
NAICS industry code: 238990

An employee was walking up the stairs when his knee popped and gave out. He fell back down the stairs, breaking both kneecaps and tearing a tendon.

Hazard classification:
code_event: title: Other fall to lower level, unspecified
code_source: title: Stairs, steps-indoors
code_nature: title: Fractures
code_body: title: Knee(s)
severity: moderate