# FALL OF ROOF OR BACK
> MSHA accident `220100900028` · 03/23/2010 · Cumberland Coal Resources LP
## Details
- **Degree of injury:** DYS AWY FRM WRK & RESTRCTD ACT
- **Classification:** FALL OF ROOF OR BACK
- **Accident type:** Struck by falling object
- **Occupation:** Laborer, Bull gang,  Parts runner, Roustabout, Roof trimmer/scaler
- **Activity:** Observe operations
- **Injury source:** CAVING ROCK,COAL,ORE,WSTE
- **Nature of injury:** CONTUSN,BRUISE,INTAC SKIN
- **Body part:** KNEE/PATELLA
- **Days lost:** 18
- **Mine experience:** 0.44 years
## Operator
- **Controller:** Alpha Natural Resources, Inc.
- **Operator:** Cumberland Coal Resources LP
- **Mine:** [3605018](https://api.ai-analytics.org/mine/3605018)
## Narrative

Observing co-worker drill a hole for a rib bolt and was struck on the left knee by a rock that fell from the rib and rolled into him. The rock was 12"" X 18"" X 5"" thick. It struck him on the left knee and caused a contusion.

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