# MACHINERY
> MSHA accident `220080420077` · 01/31/2008 · Excel Mining LLC
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** MACHINERY
- **Accident type:** Struck by... NEC
- **Occupation:** Roof bolter, Rock bolter,  Pinner, Mobile roof support operator (MRS)
- **Activity:** Roof bolter, Inserting bolt
- **Injury source:** ROOF (ROCK) BOLTS
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** FINGER(S)/THUMB
- **Days lost:** 81
- **Mine experience:** 0.38 years
## Operator
- **Controller:** Alliance Resource Partners LP
- **Operator:** Excel Mining LLC
- **Mine:** [1508079](https://api.ai-analytics.org/mine/1508079)
## Narrative

While installing a roof bolt, the bolt bent. The EE placed his hand on the bolt and engaged the rotation level on the roof bolt machine. The roof bolt spun around, striking the EE on the right thumb.

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