# SLIP OR FALL OF PERSON
> MSHA accident `220062230055` · 07/25/2006 · Cemex Inc
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **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:** ANKLE
- **Days lost:** 0
- **Mine experience:** 11.79 years
## Operator
- **Controller:** Cemex S A
- **Operator:** Cemex Inc
- **Mine:** [0900053](https://api.ai-analytics.org/mine/0900053)
## Narrative

Employee was working on valve that withdraws cement from silo 9. When employee stepped back, his left foot stepped on guard covering opening in floor. His foot twisted causing his ankle to twist.

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