# FALL OF ROOF OR BACK
> MSHA accident `220212780021` · 09/30/2021 · 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.morvs.ai/mine/4200079)
## Narrative

An unplanned Roof Fall occurred in Main West Intake XC #19.5 (#2 Entry - Primary Escapeway). The cave is approximately 10 by 10 and 4 high. No one was injured or entrapped. Preliminary diagnoses; 2 supplemental supports in the form of Steel Sets and Beams were unknowingly hit by a trailer, causing steel sets to fall over. This caused the roof support to fail.

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