# STEPPING OR KNEELING ON OBJECT
> MSHA accident `220111860011` · 06/29/2011 · Knight Hawk Coal LLC
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** STEPPING OR KNEELING ON OBJECT
- **Accident type:** Struck against stationary object
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Machine maintenance
- **Injury source:** BROKEN ROCK,COAL,ORE,WSTE
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 15
- **Mine experience:** 7.19 years
## Operator
- **Controller:** James O  Bunn; Franklin D  Robertson
- **Operator:** Knight Hawk Coal LLC
- **Mine:** [1103020](https://api.ai-analytics.org/mine/1103020)
## Narrative

Employee was checking for hydraulic leaks on a Cat Tractor, his right foot slipped on a rock, causing him to twist his left knee.

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