# MACHINERY
> MSHA accident `220112500047` · 08/18/2011 · McElroy Coal Company
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** MACHINERY
- **Accident type:** Over-exertion NEC
- **Occupation:** Motorman, Motor person, Swamper, Switchman, Locomotive operator
- **Activity:** Rerail equipment, Sprag
- **Injury source:** JACKS-MECH,HYDRL,AIR,ETC
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** BACK (MUSCLES/SPINE/S-CORD/TAILBONE)
- **Days lost:** 37
- **Mine experience:** 3 years
## Operator
- **Controller:** CONSOL Energy Inc
- **Operator:** McElroy Coal Company
- **Mine:** [4601437](https://api.ai-analytics.org/mine/4601437)
## Narrative

Employee was jacking dollies back on track on the mainline track. Over a period of time throughout the shift he felt tightness in his back. He went to doctor and MRI appointments and began to miss work on 8/31/11.

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