# FALL OF ROOF OR BACK
> MSHA accident `220240470014` · 02/04/2024 · Twin State Mining, Inc.
## Details
- **Degree of injury:** NO DYS AWY FRM WRK,NO RSTR ACT
- **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, Inserting bolt
- **Injury source:** CAVING ROCK,COAL,ORE,WSTE
- **Nature of injury:** CUT,LACER,PUNCT-OPN WOUND
- **Body part:** HAND (NOT WRIST OR FINGERS)
- **Days lost:** 0
- **Mine experience:** 0.98 years
## Operator
- **Controller:** Cleveland-Cliffs Inc
- **Operator:** Twin State Mining, Inc.
- **Mine:** [4609523](https://api.ai-analytics.org/mine/4609523)
## Narrative

Employee was operating a roof bolter in the #5 entry, putting up straps.  As employee was tightening a bolt in the strap a piece of rock (12"" X 12"" x 3"") was dislodged and struck the employee in the left hand causing a laceration near the knuckle for the index finger.  Employee received stitches to close the wound.

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