# SLIP OR FALL OF PERSON
> MSHA accident `220111750005` · 06/01/2011 · U. S. Silica Company
## Details
- **Degree of injury:** ALL OTHER CASES (INCL 1ST AID)
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Over-exertion NEC
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Walking, Running
- **Injury source:** METAL COVERS & GUARDS
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 0
- **Mine experience:** 34 years
## Operator
- **Controller:** USS Holdings Inc
- **Operator:** U. S. Silica Company
- **Mine:** [1101013](https://api.ai-analytics.org/mine/1101013)
## Narrative

Employee was carrying heavy tools and a chain hoist.  When he stepped up on the pump platform, his left foot hooked the pull-eye.  This caused employee to lose balance and twist, driving his left knee into the pump frame.  Was driven to the doctor and then came back to work.  No kneeling for two weeks.  Accident was 6/1/11 but employee did not go to the doctor until 6/3/11.

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