# MACHINERY
> MSHA accident `220071000032` · 04/06/2007 · Kingwood Mining Company LLC
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY 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:** ROOF (ROCK) BOLTS
- **Nature of injury:** FRACTURE,CHIP
- **Body part:** WRIST
- **Days lost:** 0
- **Mine experience:** 2 years
## Operator
- **Controller:** Alpha Natural Resources, Inc.
- **Operator:** Kingwood Mining Company LLC
- **Mine:** [4608751](https://api.ai-analytics.org/mine/4608751)
## Narrative

The EE was installing truss bolts. After installing the outside rib bolt, his next task was to bend the bolt against the top. He used the head of the bolter to bend the bolt and the bolt caught behind a roof bolt plate. The EE tried to push the bolt free with his right hand. When the bolt came loose, it sprung down and jammed his hand and wrist. X-ray showed hairline fracture.

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