# SLIP OR FALL OF PERSON
> MSHA accident `220013380045` · 11/05/2001 · Argos Puerto Rico Corp
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **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:** Escaping a hazard
- **Injury source:** FLOOR,WALKING SURF-NOT UG
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** ANKLE
- **Days lost:** 9
- **Mine experience:** 29 years
## Operator
- **Controller:** Italcementi Spa
- **Operator:** Argos Puerto Rico Corp
- **Mine:** [5400120](https://api.ai-analytics.org/mine/5400120)
## Narrative

EE WAS REPLACING THE TIE ROD INSIDE THE ROLLER MILL. VENTILATION INSIDE THE MILL WAS INDUCED BYTHE NORMAL AIRFLOW SYSTEM. AT A CERTAIN MOMENT ALOW VOLTAGE FAILURE OCCURS CAUSING THE BAGHOUSE VENTILATION FANS TO FAIL AND THE SYSTEM BECOMES POSITIVE CREATING A DENSE CLOUD OF DUST IN THE MILL. AS HE RUSHED OUT OF THE AREA HE TRIPPED & FELL TWISTING HIS LEFT ANKLE & INHALED DUST.

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