# FALL OF ROOF OR BACK
> MSHA accident `220182830016` · 10/02/2018 · Bronco Utah Operations, LLC.
## 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:** Bronco Coal Resources, LLC
- **Operator:** Bronco Utah Operations, LLC.
- **Mine:** [4200079](https://api.ai-analytics.org/mine/4200079)
## Narrative

A Roof Fall in the GOB area of the 2nd East Retreat (Partial-Pillar) section occurred that damaged, or knocked-out, as many as 37 Ventilation Controls, (Stoppings, Regulators & Overcasts). This caused the Air to reverse direction and/or short-circuit. It also caused Rock Dust to be suspended in the mine's air courses for several minutes.

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