# MACHINERY
> MSHA accident `220202370029` · 08/20/2020 · Rockwell Mining LLC
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** MACHINERY
- **Accident type:** Over-exertion in lifting objects
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Blow gun, Airlance
- **Injury source:** METAL,NEC(PIPE,WIRE,NAIL)
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** UPPER ARM/HUMERUS
- **Days lost:** 0
- **Mine experience:** 0.02 years
## Operator
- **Controller:** Sev.en Global Investments a.s.
- **Operator:** Rockwell Mining LLC
- **Mine:** [4609377](https://api.ai-analytics.org/mine/4609377)
## Narrative

While installing a cutting edge and corner bit on Caterpillar D-10 using 1 inch drive air gun, EE tore muscle in right arm.

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