# MACHINERY
> MSHA accident `220021220029` · 04/17/2002 · U. S.  Steel Mining Company LLC
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** MACHINERY
- **Accident type:** Over-exertion NEC
- **Occupation:** Roof bolter, Rock bolter,  Pinner, Mobile roof support operator (MRS)
- **Activity:** Roof bolter, Inserting bolt
- **Injury source:** ROOF (ROCK) BOLTS
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** BACK (MUSCLES/SPINE/S-CORD/TAILBONE)
- **Days lost:** 8
- **Mine experience:** 25.07 years
## Operator
- **Controller:** Usx Corp
- **Operator:** U. S.  Steel Mining Company LLC
- **Mine:** [4601816](https://api.ai-analytics.org/mine/4601816)
## Narrative

INJURED FELT A PAIN IN HIS BACK WHILE PLACING A ROOF BOLT & RESIN IN A HOLE IN THE MINE ROOF.

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