# MACHINERY
> MSHA accident `220152880008` · 10/13/2015 · Hanson Aggregates LLC
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** MACHINERY
- **Accident type:** Struck by flying object
- **Occupation:** Mechanic helper
- **Activity:** Machine maintenance
- **Injury source:** METAL,NEC(PIPE,WIRE,NAIL)
- **Nature of injury:** CONTUSN,BRUISE,INTAC SKIN
- **Body part:** UPPER EXTREMITIES, MULTIPLE
- **Days lost:** 4
- **Mine experience:** 10 years
## Operator
- **Controller:** Heidelberg Materials AG
- **Operator:** Hanson Aggregates LLC
- **Mine:** [4100025](https://api.ai-analytics.org/mine/4100025)
## Narrative

While removing a fly wheel for maintenance, a 3/4"" bolt broke.  Flying debris hit a worker and bruised his left arm and right hand.

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