# SLIP OR FALL OF PERSON
> MSHA accident `220261130015` · 04/13/2026 · Resolution Copper Mining LLC
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Over-exertion NEC
- **Occupation:** Laborer, Blacksmith, Bull gang, Parts runner, Roustabout, Pick-up man, Pitman
- **Activity:** Walking, Running
- **Injury source:** GROUND
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** —
- **Mine experience:** 0.23 years
## Operator
- **Controller:** RTZ Corp  PLC; BHP Billiton PLC
- **Operator:** Resolution Copper Mining LLC
- **Mine:** [0200152](https://api.morvs.ai/mine/0200152)
## Narrative

The injured employee was handling the crosshead hook on the #2 bucket for inspections on the bell line. As the employee was walking backward with the crosshead hook, their right boot caught on a ""lip"" of the collar doors. This caused the employee's knee to hyperextend. 

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