# FALL OF ROOF OR BACK
> MSHA accident `220063460049` · 12/03/2006 · Peabody Twentymile Mining 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:** 0
- **Mine experience:** — years
## Operator
- **Controller:** Peabody Energy Corporation
- **Operator:** Peabody Twentymile Mining LLC
- **Mine:** [0503836](https://api.ai-analytics.org/mine/0503836)
## Narrative

After the failure there were slickensided or polished bedding contact evident in the immediate roof. The fall was approximately 5.5' high, 23' wide and the length included 20' of unsupported roof and extended out into 16' of permanently supported roof. Six foot permanent roof support was evident and hanging from the immediate roof after the roof failure occurred.

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