# FALL OF ROOF OR BACK
> MSHA accident `220043230018` · 11/12/2004 · Mason 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:** —
- **Mine experience:** — years
## Operator
- **Controller:** Ronnie G  Cornett
- **Operator:** Mason Mining, LLC
- **Mine:** [4608523](https://api.ai-analytics.org/mine/4608523)
## Narrative

Roof fall 3800' from working face with less than 300' of cover.  Fall appeared to be layered slate with coal rider seam 8"" thick about 10' above coal seam.  This area was bolted with 4' - 6' - 8' bolts (resins).  This area had about 20 cribs 4' apart and Hientzmans between cribs several jacks with beams.  This area developed 12/30/03.  Low cover, rotten top, rider seam.

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