# HANDTOOLS (NONPOWERED)
> MSHA accident `220052450036` · 08/27/2005 · Martin Marietta Materials
## Details
- **Degree of injury:** NO DYS AWY FRM WRK,NO RSTR ACT
- **Classification:** HANDTOOLS (NONPOWERED)
- **Accident type:** Over-exertion in wielding or throwing objects
- **Occupation:** Quality control technician, Laboratory technician, Laboratory assistant
- **Activity:** Hand tools (not powered)
- **Injury source:** AXE,HAMMER,SLEDGE
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** BACK (MUSCLES/SPINE/S-CORD/TAILBONE)
- **Days lost:** 0
- **Mine experience:** 2.69 years
## Operator
- **Controller:** Martin Marietta Materials Inc
- **Operator:** Martin Marietta Materials
- **Mine:** [0103022](https://api.ai-analytics.org/mine/0103022)
## Narrative

Employee was striking the wedge on the jaw crusher with a sledge hammer to try to free it. He felt a burning in his lower back but didn't think a lot of it until the next morning when he woke up and had some pain & tightness in his lower back.

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