# MACHINERY
> MSHA accident `220021260150` · 04/29/2002 · Oxbow Mining, LLC
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** MACHINERY
- **Accident type:** Struck by... NEC
- **Occupation:** Laborer, Bull gang, Faceman, Parts runner, Roustabout, Roof trimmer/scaler
- **Activity:** Roof bolter, Drilling
- **Injury source:** DRILL STEEL (ALL SIZES)
- **Nature of injury:** CONCUSSION-BRAIN,CEREBRAL
- **Body part:** BRAIN
- **Days lost:** 111
- **Mine experience:** 0.13 years
## Operator
- **Controller:** Oxbow Carbon LLC
- **Operator:** Oxbow Mining, LLC
- **Mine:** [0504674](https://api.ai-analytics.org/mine/0504674)
## Narrative

THE RIGHT SIDE BOLTER OPERATOR, WHILE INSTALLING HIS FIRST ROOF BOLT ON A 20' CUT, BENT THE BOLT THE LAST 14"" AGAINST THE ROOF. WE BELIEVE HE FAILED TO NOTICE HE HAD BENT THE SPINNER WRENCH WH ILE INSTALLING THE BOLT. WHEN HE TRIED TO DRILL A 2ND HOLE WITH THE BENT WRENCH, THE DRILL STEEL WHIPPED AROUND & HIT THE BACK OF HIS HEAD. HE WAS KNOCKED UNCONSCIOUS; TAKEN TO E.R.

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