# MACHINERY
> MSHA accident `220120330030` · 12/05/2011 · Freeport-McMoRan Sierrita Ops.
## Details
- **Degree of injury:** NO DYS AWY FRM WRK,NO RSTR ACT
- **Classification:** MACHINERY
- **Accident type:** Caught in, under or between a moving and a stationary object
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Hand tools (powered)
- **Injury source:** DRIL-PRCUSV,HRD ROC,JKHMR
- **Nature of injury:** CONTUSN,BRUISE,INTAC SKIN
- **Body part:** FINGER(S)/THUMB
- **Days lost:** 0
- **Mine experience:** 3.38 years
## Operator
- **Controller:** Freeport-McMoRan Inc
- **Operator:** Freeport-McMoRan Sierrita Ops.
- **Mine:** [0200144](https://api.ai-analytics.org/mine/0200144)
## Narrative

EE was removing end liners on the No. 1 Ball Mill, a maintenance employee was pulling the jack hammer back out of the hole after knocking out the end liner and he was holding the jack hammer when his right thumb was caught between the jack hammer and bearing cover.

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