# HANDLING OF MATERIALS
> MSHA accident `220062120030` · 07/21/2006 · Thunder Basin Coal Company LLC
## Details
- **Degree of injury:** DYS AWY FRM WRK & RESTRCTD ACT
- **Classification:** HANDLING OF MATERIALS
- **Accident type:** Struck by falling object
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Machine maintenance
- **Injury source:** METAL COVERS & GUARDS
- **Nature of injury:** CUT,LACER,PUNCT-OPN WOUND
- **Body part:** LOWER LEG/TIBIA/FIBULA
- **Days lost:** 2
- **Mine experience:** 0.1 years
## Operator
- **Controller:** Arch Resources Inc
- **Operator:** Thunder Basin Coal Company LLC
- **Mine:** [4800977](https://api.ai-analytics.org/mine/4800977)
## Narrative

Employee was rigging a roof panel covering for rear swing motor. Panel had been set across another roof opening. He stepped onto panel causing the center of balance to shift & he started to slide through the opening. He grabbed the edge of opening and lowered himself to the top of hoist case. Panel continued to slip and hit the back of his right leg.

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