# MACHINERY
> MSHA accident `220011550102` · 05/29/2001 · Knife River Corporation-Northwest
## Details
- **Degree of injury:** NO DYS AWY FRM WRK,NO RSTR ACT
- **Classification:** MACHINERY
- **Accident type:** Struck by... NEC
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Grinding
- **Injury source:** ABRAS STONE,WHEEL GRINDER
- **Nature of injury:** CUT,LACER,PUNCT-OPN WOUND
- **Body part:** ARM,NEC
- **Days lost:** —
- **Mine experience:** 2.03 years
## Operator
- **Controller:** MDU Resources Group Inc
- **Operator:** Knife River Corporation-Northwest
- **Mine:** [3500495](https://api.ai-analytics.org/mine/3500495)
## Narrative

WHILE GRINDING A PIECE OF METAL WITH A HAND HELD AIRDISC GRINDER, DISC CAME APART WHEN IT CAME IN CONTACT WITH METAL CUTTING LEFT ARM.

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