# FALL OF ROOF OR BACK
> MSHA accident `220173630014` · 12/18/2017 · Dana Mining Company of Pennsylvania 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:** Mepco Intermediate Holdings, LLC
- **Operator:** Dana Mining Company of Pennsylvania LLC
- **Mine:** [3609326](https://api.ai-analytics.org/mine/3609326)
## Narrative

On the I-6 retreat mining panel, a roof fall occurred in the #9 cross-cut of the #4 heading.  The fall extended for approximately 60'.  The area was originally supported with 8' torque-tension bolts spaced on a 4x4 pattern and 2 16' CC cable bolts installed every 8ft.  Due to the location of the fall, the area was dangered off and supported, and the row of pillar blocks skipped.

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