# FALL OF ROOF OR BACK
> MSHA accident `220120130013` · 01/11/2012 · Dorchester Enterprises, Inc.
## 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:** Roof bolter, NEC
- **Injury source:** CAVING ROCK,COAL,ORE,WSTE
- **Nature of injury:** FRACTURE,CHIP
- **Body part:** ANKLE
- **Days lost:** 367
- **Mine experience:** 0.85 years
## Operator
- **Controller:** Alpha Natural Resources, Inc.
- **Operator:** Dorchester Enterprises, Inc.
- **Mine:** [4407052](https://api.ai-analytics.org/mine/4407052)
## Narrative

Employee set t-bar against top. Piece of sandstone drawrock fell from top striking canopy and boom. Rock broke into four pieces. A piece approx. two ft. long by two ft. wide by one and a half ft. thick struck employee on ankle knocking him to the ground and causing a broken ankle and a small cut on the chin.

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