# FALLING/SLIDING/ROLLING MATERIALS
> MSHA accident `220100350041` · 02/03/2010 · Mammoth Coal Co.
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** FALLING/SLIDING/ROLLING MATERIALS
- **Accident type:** Struck by... NEC
- **Occupation:** Laborer, Blacksmith, Bull gang, Parts runner, Roustabout, Pick-up man, Pitman
- **Activity:** Handling supplies or material
- **Injury source:** BROKEN ROCK,COAL,ORE,WSTE
- **Nature of injury:** DISLOCATION
- **Body part:** KNEE/PATELLA
- **Days lost:** 353
- **Mine experience:** 0.02 years
## Operator
- **Controller:** Massey Energy Company
- **Operator:** Mammoth Coal Co.
- **Mine:** [4608110](https://api.ai-analytics.org/mine/4608110)
## Narrative

EE exited cab of articulating truck after he had raised the bed. He walked behind the truck to hook a chain to a pipe to drag up a hill. A piece of frozen material broke loose and rolled out of the truck bed and struck him in the left knee.

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