# MACHINERY
> MSHA accident `220001450018` · 05/15/2000 · Consolidation Coal Company
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** MACHINERY
- **Accident type:** Over-exertion in pulling or pushing objects
- **Occupation:** Roof bolter helper, Rock bolter helper, Pinner helper
- **Activity:** Roof bolter, Inserting bolt
- **Injury source:** ROOF (ROCK) BOLTS
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** BACK (MUSCLES/SPINE/S-CORD/TAILBONE)
- **Days lost:** 42
- **Mine experience:** 25.3 years
## Operator
- **Controller:** CONSOL Energy Inc
- **Operator:** Consolidation Coal Company
- **Mine:** [4601436](https://api.ai-analytics.org/mine/4601436)
## Narrative

WHILE INSTALLING A ROOF BOLT (BY HAND) INTO THE ROOF, BOLT HUNG UP. EMPLOYEE TANKED DOWN ON THE BOLT, THEN FORCED BOLT BACK INTO BOLT HOLE, STRAINING LOWER BACK MUSCLES.

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