# MACHINERY
> MSHA accident `220250510020` · 02/06/2025 · Excel Mining
## Details
- **Degree of injury:** DYS AWY FRM WRK & RESTRCTD ACT
- **Classification:** MACHINERY
- **Accident type:** Struck by... NEC
- **Occupation:** Roof bolter, Rock bolter,  Pinner, Mobile roof support operator (MRS)
- **Activity:** Roof bolter, Drilling
- **Injury source:** DRILL STEEL (ALL SIZES)
- **Nature of injury:** FRACTURE,CHIP
- **Body part:** FINGER(S)/THUMB
- **Days lost:** 17
- **Mine experience:** 2.52 years
## Operator
- **Controller:** Alliance Resource Partners LP
- **Operator:** Excel Mining
- **Mine:** [1519838](https://api.ai-analytics.org/mine/1519838)
## Narrative

Employee was starting to drill the outside hole. When the steel touched the roof, the bit broke and the up pressure caused the drill steel to bend in 2 places. EE hit the rotation causing the steel to spin around and strike EE's right thumb causing a fracture.

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