# FALL OF FACE/RIB/PILLAR/SIDE/HIGHWALL
> MSHA accident `220202550022` · 08/20/2020 · Canyon Fuel Company LLC
## Details
- **Degree of injury:** ACCIDENT ONLY
- **Classification:** FALL OF FACE/RIB/PILLAR/SIDE/HIGHWALL
- **Accident type:** Accident type, without injuries
- **Occupation:** —
- **Activity:** —
- **Injury source:** —
- **Nature of injury:** —
- **Body part:** —
- **Days lost:** —
- **Mine experience:** — years
## Operator
- **Controller:** Wolverine Fuels LLC
- **Operator:** Canyon Fuel Company LLC
- **Mine:** [4201566](https://api.ai-analytics.org/mine/4201566)
## Narrative

What was described as a rib roll by the onshift foreman happened at the 8-bay. Rib roll occurred at 1:50 am while crew was working on face chain plug. While face chain was plugged, the graveyard shift cleaned up rib roll and started setting rock props. The dayshift prep crew fininhed setting rock props.

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