# FALL OF ROOF OR BACK
> MSHA accident `220113180008` · 11/03/2011 · KNOTT COUNTY COAL 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:** Arch Resources Inc
- **Operator:** KNOTT COUNTY COAL LLC
- **Mine:** [1518949](https://api.ai-analytics.org/mine/1518949)
## Narrative

A non-injury roof fall accident occurred on active 003 & 004 mmu in the last open cross cut between #2 and #4 entries above the anchorage zone of 6 feet. The fall was approx 20 feet wide by 150 feet long and approx 7 feet thick.

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