# MACHINERY
> MSHA accident `220122710031` · 09/24/2012 · Alcoa World Alumina LLC
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** MACHINERY
- **Accident type:** Caught in, under or between a moving and a stationary object
- **Occupation:** Ledgeman/hand, Quarry man
- **Activity:** Hand tools (powered)
- **Injury source:** DRIL-PRCUSV,HRD ROC,JKHMR
- **Nature of injury:** FRACTURE,CHIP
- **Body part:** FINGER(S)/THUMB
- **Days lost:** 25
- **Mine experience:** 0.15 years
## Operator
- **Controller:** Alcoa Inc
- **Operator:** Alcoa World Alumina LLC
- **Mine:** [4100320](https://api.ai-analytics.org/mine/4100320)
## Narrative

Employee was trying to free the bit of a jackhammer and when it came loose, the employee caught his thumb between the jackhammer and the wall.  It resulted in a fracture to the thumb tip.

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