# HANDTOOLS (NONPOWERED)
> MSHA accident `220072850023` · 10/08/2007 · Maryland Minerals Inc
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** HANDTOOLS (NONPOWERED)
- **Accident type:** Over-exertion NEC
- **Occupation:** Driller operator
- **Activity:** Machine maintenance
- **Injury source:** HAND TOOLS,NONPOWERED,NEC
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** CHEST (RIBS/BREAST BONE/CHEST ORGNS)
- **Days lost:** 1
- **Mine experience:** 1.52 years
## Operator
- **Controller:** Beverly A  Critchfield
- **Operator:** Maryland Minerals Inc
- **Mine:** [1800735](https://api.ai-analytics.org/mine/1800735)
## Narrative

Employee strained his chest muscles while performing maintenance on the underground drill.

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