# MACHINERY
> MSHA accident `220021750091` · 06/13/2002 · Chevron Mining Inc
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** MACHINERY
- **Accident type:** Over-exertion in pulling or pushing objects
- **Occupation:** Welder (shop)
- **Activity:** Grinding
- **Injury source:** GROUND
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 36
- **Mine experience:** 33.65 years
## Operator
- **Controller:** Chevron Corporation
- **Operator:** Chevron Mining Inc
- **Mine:** [4800086](https://api.ai-analytics.org/mine/4800086)
## Narrative

EE WAS WORKING TO REMOVE BOLTS FROM A DOZER WHEN HE EXPERIENCED KNEE STRAIN.

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