# FALL OF ROOF OR BACK
> MSHA accident `220083570084` · 12/14/2008 · Pine Ridge Coal Company 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:** Patriot Coal Corporation
- **Operator:** Pine Ridge Coal Company LLC
- **Mine:** [4607908](https://api.ai-analytics.org/mine/4607908)
## Narrative

An unplanned roof fall (highwall failure) occurred at the mine fan portal area. The fall was found at approx 9:18 PM and it was determined that ventilation was impaired at approx 10:35 PM.

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