# MACHINERY
> MSHA accident `220211650116` · 06/07/2021 · Material Sand & Stone Corp.
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** MACHINERY
- **Accident type:** Struck by... NEC
- **Occupation:** Crusher attendant/operator, Pan feeder operator/worker
- **Activity:** Observe operations
- **Injury source:** METAL,NEC(PIPE,WIRE,NAIL)
- **Nature of injury:** CONCUSSION-BRAIN,CEREBRAL
- **Body part:** BRAIN
- **Days lost:** 8
- **Mine experience:** 7.06 years
## Operator
- **Controller:** Robert A Pezza; Michael T Pezza
- **Operator:** Material Sand & Stone Corp.
- **Mine:** [3700068](https://api.ai-analytics.org/mine/3700068)
## Narrative

Lowering a jaw plate into jaw, hook brakes on rental excavator.  Miner tripped, hard hat fell off, shakel came loose and hit miner on top of the head.

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