# FALL OF ROOF OR BACK
> MSHA accident `220113270030` · 11/22/2011 · Armstrong Coal Company, Inc.
## Details
- **Degree of injury:** DYS AWY FRM WRK & RESTRCTD ACT
- **Classification:** FALL OF ROOF OR BACK
- **Accident type:** Struck by rolling or sliding 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:** LOWER LEG/TIBIA/FIBULA
- **Days lost:** 35
- **Mine experience:** 2 years
## Operator
- **Controller:** Armstrong Energy Inc
- **Operator:** Armstrong Coal Company, Inc.
- **Mine:** [1519535](https://api.ai-analytics.org/mine/1519535)
## Narrative

Employee was pinning in #12 entry on #1 unit installing middle bolt (off side) in a six wide pin pattern and after setting ATRS to support the top he was standing and turned to his left and a large rock approx. 3'x 3'x 6"" broke and fell from the inby side of ATRS and fell down and rolled back on his right leg between knee and ankle.

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