# MACHINERY
> MSHA accident `220113190024` · 11/08/2011 · Mach Mining LLC
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** MACHINERY
- **Accident type:** Struck by falling object
- **Occupation:** Laborer, Blacksmith, Bull gang, Parts runner, Roustabout, Pick-up man, Pitman
- **Activity:** Machine maintenance
- **Injury source:** JACKS-MECH,HYDRL,AIR,ETC
- **Nature of injury:** OTHER INJURY,NEC
- **Body part:** SHOULDERS (COLLARBONE/CLAVICLE/SCAPULA)
- **Days lost:** 3
- **Mine experience:** 0.9 years
## Operator
- **Controller:** Coalfield Transport Inc; Foresight Energy/ Murray Energy
- **Operator:** Mach Mining LLC
- **Mine:** [1103141](https://api.ai-analytics.org/mine/1103141)
## Narrative

Hydraulic jack was being used to lift the screen in forder to change the spring.  The screen was raised and the jack was under load.  The jack suddenly kicked out.  The base of the jack struck his shoulder/collar bone.

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