# SLIP OR FALL OF PERSON
> MSHA accident `220100080009` · 12/06/2009 · Lafarge North America
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Fall to the walkway or working surface
- **Occupation:** Pumper
- **Activity:** Walking, Running
- **Injury source:** STORAGE TANKS AND BINS
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 0
- **Mine experience:** 8.58 years
## Operator
- **Controller:** Lafarge S A
- **Operator:** Lafarge North America
- **Mine:** [3600271](https://api.ai-analytics.org/mine/3600271)
## Narrative

Employee was in the stone silo to clear a feeder choke in CR5. Upon exiting the silo door, the employee fell to the ground coming down on his right knee. His knee hit the containment berm surrounding the door, an area which was muddy. This was reported as a First Aid but the level of follow-up treatment elevated this to a Medical, explaining the delay in reporting.

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