# MACHINERY
> MSHA accident `220122330046` · 08/14/2012 · Keystone Coal Mining Corporation
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** MACHINERY
- **Accident type:** Struck by... NEC
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Machine maintenance
- **Injury source:** DRILL STEEL (ALL SIZES)
- **Nature of injury:** FRACTURE,CHIP
- **Body part:** WRIST
- **Days lost:** 0
- **Mine experience:** 1.42 years
## Operator
- **Controller:** CONSOL Energy Inc
- **Operator:** Keystone Coal Mining Corporation
- **Mine:** [3608540](https://api.ai-analytics.org/mine/3608540)
## Narrative

Employee was helping replace UHMW chute liner. Injured e/e was holding liner in place inside chute while other e/e was outside chute drilling holes for mounting hardware. As he drilled through the liner, the drill bit entered into employee's left wrist resulting in left wrist trapezium avulsion fracture and puncture wound.

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