# HANDLING OF MATERIALS
> MSHA accident `220081980025` · 03/18/2008 · Chevron Mining Inc
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** HANDLING OF MATERIALS
- **Accident type:** Over-exertion NEC
- **Occupation:** Longwall operator, Chock operator, Shear operator, Plow operator
- **Activity:** Machine maintenance
- **Injury source:** LONGWALL CONVEYOR
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 40
- **Mine experience:** 12 years
## Operator
- **Controller:** Chevron Corporation
- **Operator:** Chevron Mining Inc
- **Mine:** [0100759](https://api.ai-analytics.org/mine/0100759)
## Narrative

Employee was changing bits on shearer cutting drum.  As he was turning drum he felt his left knee lock up.  First Lost Work Day was 7/10/08 due to surgery to repair tear.

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