# HANDTOOLS (NONPOWERED)
> MSHA accident `220100070022` · 12/29/2009 · Aggregates USA LLC
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** HANDTOOLS (NONPOWERED)
- **Accident type:** Over-exertion NEC
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Hand tools (not powered)
- **Injury source:** WRENCH
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** BACK (MUSCLES/SPINE/S-CORD/TAILBONE)
- **Days lost:** 0
- **Mine experience:** 9.75 years
## Operator
- **Controller:** Ready Mix USA Inc
- **Operator:** Aggregates USA LLC
- **Mine:** [0900038](https://api.ai-analytics.org/mine/0900038)
## Narrative

Employee was standing upright and tightening a bolt on the crusher. Employee states that he felt a twinge in his back while performing this duty.

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