# FALL OF ROOF OR BACK
> MSHA accident `220080660048` · 03/03/2008 · Lone Mountain Processing 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:** Lone Mountain Processing LLC
- **Mine:** [1502263](https://api.ai-analytics.org/mine/1502263)
## Narrative

As retreat mining was taking place the left side MRS unit was being trammed forward after the #9 cut. A fall occurred in the #9 cut, coming out into the entry trapping the MRS units. The area was originally supported with 5' Hy-Tech bolts. There were no injuries. The fall occurred on the 1 Right Panel 005 unit in the #1 entry.

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