# MACHINERY
> MSHA accident `220203150022` · 11/09/2020 · Barrett Paving Materials Inc
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** MACHINERY
- **Accident type:** Struck by flying object
- **Occupation:** Laborer, Blacksmith, Bull gang, Parts runner, Roustabout, Pick-up man, Pitman
- **Activity:** Hand tools (powered)
- **Injury source:** METAL COVERS & GUARDS
- **Nature of injury:** CONTUSN,BRUISE,INTAC SKIN
- **Body part:** ARM,NEC
- **Days lost:** 155
- **Mine experience:** 0.67 years
## Operator
- **Controller:** Colas S A
- **Operator:** Barrett Paving Materials Inc
- **Mine:** [1200022](https://api.ai-analytics.org/mine/1200022)
## Narrative

Plant operator was using Allied breaker to break large rock at Jaw Crusher. EE did not notice a bolt head at the top of the hammer was in contact with a part of the shielding around  the jaw opening. As EE pushed the hammer head down upon the rock, the bolt head broke the plate weld loose on one end and the steel sprung against operator's right arm.

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