# STEPPING OR KNEELING ON OBJECT
> MSHA accident `220200860016` · 03/03/2020 · Hanson Aggregates Pacific Southwest Inc
## Details
- **Degree of injury:** DYS AWY FRM WRK & RESTRCTD ACT
- **Classification:** STEPPING OR KNEELING ON OBJECT
- **Accident type:** Struck against stationary object
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Inspect equipment or mine
- **Injury source:** BROKEN ROCK,COAL,ORE,WSTE
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 20
- **Mine experience:** 4 years
## Operator
- **Controller:** Heidelberg Materials AG
- **Operator:** Hanson Aggregates Pacific Southwest Inc
- **Mine:** [0402685](https://api.ai-analytics.org/mine/0402685)
## Narrative

EE was walking under Conveyor PC-12 and slipped when they stepped on a rock. Their right knee jammed when their foot slipped. The EE was offered medical attention and refused at that time. The EE reportedly twisted their knee over the weekend when their foot got stuck in the mud. EE reported twisted knee to their Lead Person on Tuesday 3/24 requesting medical treatment.

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