# MACHINERY
> MSHA accident `220071940039` · 07/07/2007 · Peabody Twentymile Mining LLC
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** MACHINERY
- **Accident type:** Struck by falling object
- **Occupation:** Apprentice, Trainee
- **Activity:** Roof bolter, NEC
- **Injury source:** WRENCH
- **Nature of injury:** CONTUSN,BRUISE,INTAC SKIN
- **Body part:** KNEE/PATELLA
- **Days lost:** 21
- **Mine experience:** 0.13 years
## Operator
- **Controller:** Peabody Energy Corporation
- **Operator:** Peabody Twentymile Mining LLC
- **Mine:** [0503836](https://api.ai-analytics.org/mine/0503836)
## Narrative

Employee states he was being instructed on operating the levers on the roof bolter, when a wrench fell and hit the top of ee's left knee cap.

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