# SLIP OR FALL OF PERSON
> MSHA accident `220110120018` · 01/06/2011 · Imerys Perlite USA, Inc.
## Details
- **Degree of injury:** NO DYS AWY FRM WRK,NO RSTR ACT
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Over-exertion NEC
- **Occupation:** Pumper
- **Activity:** Walking, Running
- **Injury source:** STEPS
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 0
- **Mine experience:** 6 years
## Operator
- **Controller:** Imerys S A
- **Operator:** Imerys Perlite USA, Inc.
- **Mine:** [2900248](https://api.ai-analytics.org/mine/2900248)
## Narrative

After removing lock-outs from cone crusher disconnect, employee was descending steps from upper control room to base floor & slipped.  May have hyper extended left knee.

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