# MACHINERY
> MSHA accident `220011490147` · 05/23/2001 · U S Borax Inc
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** MACHINERY
- **Accident type:** Over-exertion NEC
- **Occupation:** Drill helper
- **Activity:** Machine maintenance
- **Injury source:** DRIL-PRCUSV,HRD ROC,JKHMR
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** BACK (MUSCLES/SPINE/S-CORD/TAILBONE)
- **Days lost:** 3
- **Mine experience:** 1.8 years
## Operator
- **Controller:** Rio Tinto Group
- **Operator:** U S Borax Inc
- **Mine:** [0400743](https://api.ai-analytics.org/mine/0400743)
## Narrative

THE EE STATES THAT HE WAS CHANGING OUT THE SPINDLE SUB ON A DRILL TECH DRILL WHEN IT SLIPPED ON THE CHOKER. HE WAS STARTLED BY THIS AND PUSHED THE SPINDLE SUB AWAY FROM HIM. THIS REULSTED IN A LOWER BACK STRAIN. THE SPINDLE SUB WEIGHS APPROXIMATELY 300-350 LBS.

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