# FALLING/SLIDING/ROLLING MATERIALS
> MSHA accident `220210250014` · 01/23/2021 · United States Steel Corp-Minnesota Ore Operations
## Details
- **Degree of injury:** DYS AWY FRM WRK & RESTRCTD ACT
- **Classification:** FALLING/SLIDING/ROLLING MATERIALS
- **Accident type:** Caught in, under or between a moving and a stationary object
- **Occupation:** Beltman, Conveyor man,  Conveyor belt worker, Mobile bridge carrierman, Feeder operator, Conveyor rider
- **Activity:** Machine maintenance
- **Injury source:** BELT CONVEYORS
- **Nature of injury:** FRACTURE,CHIP
- **Body part:** CHEST (RIBS/BREAST BONE/CHEST ORGNS)
- **Days lost:** 24
- **Mine experience:** 0.12 years
## Operator
- **Controller:** USX Corp (United States Steel Corp)
- **Operator:** United States Steel Corp-Minnesota Ore Operations
- **Mine:** [2100282](https://api.ai-analytics.org/mine/2100282)
## Narrative

An improperly secured conveyor system tail pulley carriage moved unexpectedly due to gravity and cable slack, pinning employee underneath.  Employee sustained injury to include 3 broken ribs and a small laceration to liver. 

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