# MACHINERY
> MSHA accident `220110540032` · 02/21/2011 · Guest Mountain Mining Corporation
## Details
- **Degree of injury:** DYS AWY FRM WRK & RESTRCTD ACT
- **Classification:** MACHINERY
- **Accident type:** Caught in, under or between a moving and a stationary object
- **Occupation:** Roof bolter, Rock bolter,  Pinner, Mobile roof support operator (MRS)
- **Activity:** Roof bolter, NEC
- **Injury source:** UNDERGRD MINING MACHINES
- **Nature of injury:** FRACTURE,CHIP
- **Body part:** FINGER(S)/THUMB
- **Days lost:** 32
- **Mine experience:** 0.81 years
## Operator
- **Controller:** Massey Energy Company
- **Operator:** Guest Mountain Mining Corporation
- **Mine:** [4407138](https://api.ai-analytics.org/mine/4407138)
## Narrative

The employee was pushing a rock out of the way with the stab jack on the roof bolter. The rock either broke or the stab jack slipped over top of the rock, causing the drill head to move forward quickly catching his left thumb between the drill steel and the canopy post.

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