# FALLING/SLIDING/ROLLING MATERIALS
> MSHA accident `220251640022` · 05/14/2025 · Thelen Sand & Gravel, Inc.
## Details
- **Degree of injury:** DYS AWY FRM WRK & RESTRCTD ACT
- **Classification:** FALLING/SLIDING/ROLLING 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:** BELT CONVEYORS
- **Nature of injury:** CONTUSN,BRUISE,INTAC SKIN
- **Body part:** FINGER(S)/THUMB
- **Days lost:** 2
- **Mine experience:** 1 years
## Operator
- **Controller:** Steven  Thelen
- **Operator:** Thelen Sand & Gravel, Inc.
- **Mine:** [1103221](https://api.ai-analytics.org/mine/1103221)
## Narrative

Two employees had set a beater return roller on a lower frame part of the stacker frame of the conveyor; the roller slipped out from the frame and came into contact with injured employee's index finger.

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