# SLIP OR FALL OF PERSON
> MSHA accident `220041900023` · 06/29/2004 · Westmoreland San Juan Mining LLC
## Details
- **Degree of injury:** DYS AWY FRM WRK & RESTRCTD ACT
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Over-exertion NEC
- **Occupation:** Laborer, Bull gang,  Parts runner, Roustabout, Roof trimmer/scaler
- **Activity:** Machine maintenance
- **Injury source:** MINE FLOOR,BOTTOM,FOOTWAL
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 2
- **Mine experience:** 0.48 years
## Operator
- **Controller:** BHP Billiton
- **Operator:** Westmoreland San Juan Mining LLC
- **Mine:** [2902170](https://api.ai-analytics.org/mine/2902170)
## Narrative

Ee states that while installing hanger chains, he slipped and felt something 'pop' in his knee. He did not report this to his supervisor. he came back to work from days off and having already seen the physician and reported a knee injury.

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