# MACHINERY
> MSHA accident `220071300036` · 05/03/2007 · Rockhouse Energy Mining Company
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** MACHINERY
- **Accident type:** Struck by falling object
- **Occupation:** Roof bolter, Rock bolter,  Pinner, Mobile roof support operator (MRS)
- **Activity:** Roof bolter, NEC
- **Injury source:** METAL COVERS & GUARDS
- **Nature of injury:** CONTUSN,BRUISE,INTAC SKIN
- **Body part:** KNEE/PATELLA
- **Days lost:** 113
- **Mine experience:** 2 years
## Operator
- **Controller:** Massey Energy Company
- **Operator:** Rockhouse Energy Mining Company
- **Mine:** [1517651](https://api.ai-analytics.org/mine/1517651)
## Narrative

EE was operating the offside of the RRII bolter when the bolts broke that holds the valve mount assembly. When this fell, it struck EE knocking him into the rib. He injured his left knee when this occurred.

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