# MACHINERY
> MSHA accident `220030350018` · 01/24/2003 · BNI Coal, Ltd
## Details
- **Degree of injury:** NO DYS AWY FRM WRK,NO RSTR ACT
- **Classification:** MACHINERY
- **Accident type:** Struck by falling object
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Hand tools (powered)
- **Injury source:** METAL,NEC(PIPE,WIRE,NAIL)
- **Nature of injury:** CONTUSN,BRUISE,INTAC SKIN
- **Body part:** FINGER(S)/THUMB
- **Days lost:** —
- **Mine experience:** 1.63 years
## Operator
- **Controller:** Allete Inc
- **Operator:** BNI Coal, Ltd
- **Mine:** [3200218](https://api.ai-analytics.org/mine/3200218)
## Narrative

EMPLOYEE WAS USING AN AIR IMPACT WRENCH TO TIGHTEN A NUT ON A HYDRAULIC CYLINDER. THE VIBRATION CAUSED THE CYLINDER TO MOVE AND IT FELL DOWN AND PINCHED THE TIP OF HIS THUMB.

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