# MACHINERY
> MSHA accident `220260280018` · 01/20/2026 · Heidelberg Materials Midwest Agg, Inc.
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** MACHINERY
- **Accident type:** Struck by flying object
- **Occupation:** Haul/Off road/Coal/Ore/Pit/Quarry/Rock/Rubber tire truck driver, Transportation truck driver
- **Activity:** Unknown
- **Injury source:** MCH PWR TRNSMSN APPR,NEC
- **Nature of injury:** FRACTURE,CHIP
- **Body part:** LOWER EXTREMITIES, MULTIPLE PARTS
- **Days lost:** —
- **Mine experience:** 32.63 years
## Operator
- **Controller:** Heidelberg Materials AG
- **Operator:** Heidelberg Materials Midwest Agg, Inc.
- **Mine:** [1512905](https://api.ai-analytics.org/mine/1512905)
## Narrative

Employee was standing near head pulley on C-5 and radioed the operator to start the belt.  When started the torque arm holding the gear box assembly broke free allowing the assembly to spin forward.  The assembly struck the employee in the left leg.

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