# HANDLING OF MATERIALS
> MSHA accident `220090090021` · 11/10/2008 · Wyo-Ben, Inc
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** HANDLING OF MATERIALS
- **Accident type:** Over-exertion NEC
- **Occupation:** Quality control technician, Laboratory technician, Laboratory assistant
- **Activity:** Office and lab work, Clerical
- **Injury source:** METAL,NEC(PIPE,WIRE,NAIL)
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** FINGER(S)/THUMB
- **Days lost:** 0
- **Mine experience:** 10.48 years
## Operator
- **Controller:** David  Brown
- **Operator:** Wyo-Ben, Inc
- **Mine:** [4800611](https://api.ai-analytics.org/mine/4800611)
## Narrative

Employee was tightening the T screw on to the top of the filter press cell when her thumb slipped off the T screw.  Her right hand was wet at the time from washing fuidloss cells.  The employee has torn or strained ligaments in thumb.

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