Incident date: 2016-11-03
NAICS industry code: 424510

An employee was attempting to check the valve position on top of a small bulk tank. He placed a ladder against the tank to get a better view of the valve and was climbing up. As he reached the half
way point, the ladder slipped on the smooth concrete surface and he fell 4 to 6 feet and landed on his right 
knee, breaking his kneecap.

Hazard classification:
code_event: title: Other fall to lower level less than 6 feet
code_source: title: Movable ladders, unspecified
code_nature: title: Fractures
code_body: title: Knee(s)
severity: moderate