# HANDLING OF MATERIALS
> MSHA accident `220212770003` · 10/02/2021 · Colorado Materials Ltd
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** HANDLING OF MATERIALS
- **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:** DRUM,PULY,SHEAVE-NT CONVY
- **Nature of injury:** FRACTURE,CHIP
- **Body part:** FINGER(S)/THUMB
- **Days lost:** 0
- **Mine experience:** 24.9 years
## Operator
- **Controller:** John R  Weisman
- **Operator:** Colorado Materials Ltd
- **Mine:** [4103430](https://api.ai-analytics.org/mine/4103430)
## Narrative

Replacing a tail pulley in a screen feed belt, the new pulley assembly was suspended in place when the maintenance employee was using emery cloth to smooth the shaft. The pulley assembly shifted, trapping employee's thumb between the shaft and the structure. The crush injury resulted in a tuft fracture of the right thumb, and loss of the thumb nail.

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