# MACHINERY
> MSHA accident `220073170091` · 11/08/2007 · Carmeuse Lime & Stone Inc
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** MACHINERY
- **Accident type:** Over-exertion NEC
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Hand tools (powered)
- **Injury source:** HAND TOOLS,POWERED,NEC
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** CHEST (RIBS/BREAST BONE/CHEST ORGNS)
- **Days lost:** 0
- **Mine experience:** 1.23 years
## Operator
- **Controller:** Carmeuse Holding SA; Lafarge SA
- **Operator:** Carmeuse Lime & Stone Inc
- **Mine:** [0100394](https://api.ai-analytics.org/mine/0100394)
## Narrative

Employee was working on a screw conveyor. The screw connection required an awkward position for the employee to work in with his arm reaching around the bottom of the screw. While using an impact wrench his arm was twisted because of the awkward position and pulled the pectoralis muscle.

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