# SLIP OR FALL OF PERSON
> MSHA accident `220120480020` · 02/13/2012 · Robinson Nevada Mining Company
## Details
- **Degree of injury:** DYS AWY FRM WRK & RESTRCTD ACT
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Fall to the walkway or working surface
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Hand tools (not powered)
- **Injury source:** FLOOR,WALKING SURF-NOT UG
- **Nature of injury:** FRACTURE,CHIP
- **Body part:** KNEE/PATELLA
- **Days lost:** 2
- **Mine experience:** 0.69 years
## Operator
- **Controller:** Quadra Mining Ltd
- **Operator:** Robinson Nevada Mining Company
- **Mine:** [2601916](https://api.ai-analytics.org/mine/2601916)
## Narrative

Employee was pulling and straightening a large set of tire chains that were laying on the floor. A large hook bar was used to help with this. The hook bar slipped off the chain link which resulted in the employee falling backwards and spinning body around and landing on right knee cap on cement floor.

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