# SLIP OR FALL OF PERSON
> MSHA accident `220180850026` · 03/10/2018 · Specialty Granules LLC
## Details
- **Degree of injury:** DYS AWY FRM WRK & RESTRCTD ACT
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Fall to the walkway or working surface
- **Occupation:** Prep plant foreman, Supervisor, Mill plant supervisor, Kiln supervisor
- **Activity:** Machine maintenance
- **Injury source:** GROUND
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 20
- **Mine experience:** 16.77 years
## Operator
- **Controller:** Specialty Granules LLC
- **Operator:** Specialty Granules LLC
- **Mine:** [3603460](https://api.ai-analytics.org/mine/3603460)
## Narrative

Employee fell and twisted knee while conducting maintenance on a piece of machinery.

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