# MACHINERY
> MSHA accident `220262450009` · 08/31/2026 · Heidelberg Materials Midwest Agg Inc
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** MACHINERY
- **Accident type:** Caught in, under or between a moving and a stationary object
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Machine maintenance
- **Injury source:** SURFACE MINING MACHINES
- **Nature of injury:** FRACTURE,CHIP
- **Body part:** FINGER(S)/THUMB
- **Days lost:** —
- **Mine experience:** 1 years
## Operator
- **Controller:** Heidelberg Materials AG
- **Operator:** Heidelberg Materials Midwest Agg Inc
- **Mine:** [1100069](https://api.morvs.ai/mine/1100069)
## Narrative

removing synchronous motor off red dragline. individual stuck middle finger into 1 thread pusher bolt hole on coupling between sync mtr and open non threaded hole on generator. coupling was already unbolted. a nut was placed between flanges to push them apart. while finger was in the hole trying to remove nut the mtr rotated pinching finger. 

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