# MACHINERY
> MSHA accident `220212390016` · 08/17/2021 · Ash Grove Cement Company
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** MACHINERY
- **Accident type:** Over-exertion in pulling or pushing objects
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Hand tools (powered)
- **Injury source:** BRICK,CERAMIC
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** SHOULDERS (COLLARBONE/CLAVICLE/SCAPULA)
- **Days lost:** 0
- **Mine experience:** 5.02 years
## Operator
- **Controller:** CRH PLC
- **Operator:** Ash Grove Cement Company
- **Mine:** [1400034](https://api.morvs.ai/mine/1400034)
## Narrative

EE was lowering mill liners into the mill to stage the liners for installation. While lowering the mill liner into the compartment, the liner became bound while passing through the opening in the mill. The EE began to pull on the liner to free it and allow it to lower through the opening. EE then felt pain in the muscle near EE's right shoulder.

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