# FALLING/SLIDING/ROLLING MATERIALS
> MSHA accident `220201140027` · 04/23/2020 · O-N Minerals (Michigan) Company
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** FALLING/SLIDING/ROLLING MATERIALS
- **Accident type:** Struck by falling object
- **Occupation:** Plumber, Pipefitter, Millwright
- **Activity:** Inspect equipment or mine
- **Injury source:** CONVEYORS,NEC
- **Nature of injury:** FRACTURE,CHIP
- **Body part:** THIGH/FEMUR
- **Days lost:** 113
- **Mine experience:** 1.77 years
## Operator
- **Controller:** Carmeuse Holding SA
- **Operator:** O-N Minerals (Michigan) Company
- **Mine:** [2000062](https://api.ai-analytics.org/mine/2000062)
## Narrative

As employee was performing maintenance checks on primary surge stacker, the boom of the stacker collapsed and fell 20'.  The employee was standing near the head pulley and suffered a broken leg and vertebra in the back.

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*Source: [MSHA Open Government Data](https://arlweb.msha.gov/OpenGovernmentData/) · AI Analytics · CC0 1.0*