# FALL OF ROOF OR BACK
> MSHA accident `220091280051` · 05/04/2009 · 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

Unintentional roof fall: d-return, No. 1 entry, crosscut no. 32, survey station no. 10183. The fall measured approx. 40 ft long , 20 ft wide and 5 ft thick. Five foot 3/4"" ida. fully grouted resin roof bolts were in use as primary roof support.

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