# MACHINERY
> MSHA accident `220231140007` · 04/13/2023 · US Aggregates Inc
## Details
- **Degree of injury:** PERM TOT OR PERM PRTL DISABLTY
- **Classification:** MACHINERY
- **Accident type:** Caught in, under or between a moving and a stationary object
- **Occupation:** Crusher attendant/operator, Pan feeder operator/worker
- **Activity:** Crusher, Breaker
- **Injury source:** DRIL-PRCUSV,HRD ROC,JKHMR
- **Nature of injury:** AMPUTATION OR ENUCLEATION
- **Body part:** FINGER(S)/THUMB
- **Days lost:** 16
- **Mine experience:** 11.85 years
## Operator
- **Controller:** The Heritage Group
- **Operator:** US Aggregates Inc
- **Mine:** [1200136](https://api.ai-analytics.org/mine/1200136)
## Narrative

A miner was looking down inside the Jaw to guide the operator of the rock hammer down onto the rock that was stuck. The rock breaker slipped off of the rock causing it to strike the right hand of the miner in between the back of the jaw crusher and the hammer while guiding the hammer into place.  A severe hand injury occurred resulting in the loss of 3 fingers.

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