# FALL OF ROOF OR BACK
> MSHA accident `220070650008` · 03/02/2007 · Knox Creek Coal Corporation
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** FALL OF ROOF OR BACK
- **Accident type:** Struck by falling object
- **Occupation:** Roof bolter, Rock bolter,  Pinner, Mobile roof support operator (MRS)
- **Activity:** Escaping a hazard
- **Injury source:** CAVING ROCK,COAL,ORE,WSTE
- **Nature of injury:** FRACTURE,CHIP
- **Body part:** LOWER LEG/TIBIA/FIBULA
- **Days lost:** 139
- **Mine experience:** 2.23 years
## Operator
- **Controller:** Massey Energy Company
- **Operator:** Knox Creek Coal Corporation
- **Mine:** [4406804](https://api.ai-analytics.org/mine/4406804)
## Narrative

After installing roofbolts in the 2nd right break, 120' inby SS#9017, employee heard the rib crack. As he turned to move from the drill station, he was struck by a rock measuring approximately 46"" x 45"" 16"".

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