# SLIP OR FALL OF PERSON
> MSHA accident `220063100012` · 10/05/2006 · Keystone Cement Company 
## Details
- **Degree of injury:** DYS AWY FRM WRK & RESTRCTD ACT
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Over-exertion NEC
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Machine maintenance
- **Injury source:** FLOOR,WALKING SURF-NOT UG
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 36
- **Mine experience:** 25.31 years
## Operator
- **Controller:** Cementos Portland Valderrivas S A
- **Operator:** Keystone Cement Company 
- **Mine:** [3600125](https://api.ai-analytics.org/mine/3600125)
## Narrative

Employee stepped down off platform at Kiln 2 Vent Fan, twisted knee and felt pain. He reported incident but refused medical treatment on this date. Follow up showed torn left medial meniscas in left knee. Surgery on 11/02/2006 made this a reportable lost time accident as of this date.

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