# HANDLING OF MATERIALS
> MSHA accident `220142030002` · 07/07/2014 · Mammoth Coal Co.
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** HANDLING OF MATERIALS
- **Accident type:** Over-exertion NEC
- **Occupation:** Examiner, Fire boss, Pre-shift examiner, Mine examiner
- **Activity:** Crawling, Kneeling
- **Injury source:** MINE FLOOR,BOTTOM,FOOTWAL
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 80
- **Mine experience:** 3 years
## Operator
- **Controller:** Alpha Natural Resources, Inc.
- **Operator:** Mammoth Coal Co.
- **Mine:** [4609221](https://api.ai-analytics.org/mine/4609221)
## Narrative

Employee was kneeling down removing rock out of the walkway, when he felt a pop in his knee. The employee returned to work, and worked until 7/20/14. He returned to the doctor with continued pain in his left knee. The doctor took him off work on 7/21/14.

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