# SLIP OR FALL OF PERSON
> MSHA accident `220111080008` · 04/14/2011 · American Colloid Company
## Details
- **Degree of injury:** NO DYS AWY FRM WRK,NO RSTR ACT
- **Classification:** SLIP OR FALL OF PERSON
- **Accident type:** Fall to lower level, NEC
- **Occupation:** Pumper
- **Activity:** Machine maintenance
- **Injury source:** FLOOR,WALKING SURF-NOT UG
- **Nature of injury:** CUT,LACER,PUNCT-OPN WOUND
- **Body part:** KNEE/PATELLA
- **Days lost:** 0
- **Mine experience:** 0.12 years
## Operator
- **Controller:** Amcol International Corp
- **Operator:** American Colloid Company
- **Mine:** [3200459](https://api.ai-analytics.org/mine/3200459)
## Narrative

Worker was working on 20% slope metal roof patching small vent holes, the worker was not tied off and was moving material and tools into the work area from access point. In Transit a 30"" section of roofing gave way and worker fell through the roof, 14 feet into the building, striking some conduit on the way down, causing a laceration to his left knee.

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