# HANDLING OF MATERIALS
> MSHA accident `220190910006` · 03/18/2019 · Martin Marietta Materials Southwest, LLC
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** HANDLING OF MATERIALS
- **Accident type:** Over-exertion in lifting objects
- **Occupation:** Bulldozer operator, Universal operator, Heavy equipment operator, Operating engineer
- **Activity:** Handling supplies or material
- **Injury source:** BLOCKING
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** BACK (MUSCLES/SPINE/S-CORD/TAILBONE)
- **Days lost:** 0
- **Mine experience:** 17.19 years
## Operator
- **Controller:** Martin Marietta Materials Inc
- **Operator:** Martin Marietta Materials Southwest, LLC
- **Mine:** [4104708](https://api.ai-analytics.org/mine/4104708)
## Narrative

EE was pulling chocks off the rear counter weight of EE's loader with one hand, allowing the chock to fall to the ground while continuing to hold on to it.  Due to the use of improper body mechanics and techniques the EE felt a muscle strain in EE's back.

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