# MACHINERY
> MSHA accident `220111020025` · 04/07/2011 · Teichert Aggregates
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** MACHINERY
- **Accident type:** Struck by flying object
- **Occupation:** Outside foreman, Leadman
- **Activity:** Surface equipment, NEC
- **Injury source:** BROKEN ROCK,COAL,ORE,WSTE
- **Nature of injury:** CONCUSSION-BRAIN,CEREBRAL
- **Body part:** BRAIN
- **Days lost:** 308
- **Mine experience:** 8.62 years
## Operator
- **Controller:** Teichert Inc
- **Operator:** Teichert Aggregates
- **Mine:** [0401973](https://api.ai-analytics.org/mine/0401973)
## Narrative

Struck on hard hat by a (approximately) 10 lb cobble

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