# FALL OF ROOF OR BACK
> MSHA accident `220163010008` · 10/22/2016 · XMV, Inc.
## Details
- **Degree of injury:** ACCIDENT ONLY
- **Classification:** FALL OF ROOF OR BACK
- **Accident type:** Accident type, without injuries
- **Occupation:** —
- **Activity:** —
- **Injury source:** —
- **Nature of injury:** —
- **Body part:** —
- **Days lost:** —
- **Mine experience:** — years
## Operator
- **Controller:** ArcelorMittal
- **Operator:** XMV, Inc.
- **Mine:** [4609496](https://api.ai-analytics.org/mine/4609496)
## Narrative

The surface high wall having connecting underground mine portal entries, failed to remain competent in solid form, resulting in rock strata breaking away directly over top of the No.6 mine portal entry and damaging two rows of permanent roof support, having been installed in the underground mine roof(s) immediate portal opening. 

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