# SLIP OR FALL OF PERSON
> MSHA accident `220041000007` · 04/05/2004 · National Cement Company Of California Inc
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Over-exertion NEC
- **Occupation:** Mechanic helper
- **Activity:** Machine maintenance
- **Injury source:** FLOOR,WALKING SURF-NOT UG
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 40
- **Mine experience:** 25.75 years
## Operator
- **Controller:** Vicat S A
- **Operator:** National Cement Company Of California Inc
- **Mine:** [0400213](https://api.morvs.ai/mine/0400213)
## Narrative

Employee was standing on an angled support with the right knee braced against a concrete peir at ground level to tighten a fan bearing bolt.  His left foot slipped on the angle, shifting stress to his right knee

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