# FALL OF ROOF OR BACK
> MSHA accident `220072780038` · 10/01/2007 · AMFIRE Mining 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:** Alpha Natural Resources, Inc.
- **Operator:** AMFIRE Mining Company LLC
- **Mine:** [3608850](https://api.ai-analytics.org/mine/3608850)
## Narrative

Roof fall found by mine examiner during preshift in intersection in common entry 600-feet outby the faces of the active South Mains working section 100-feet outby spad 6619. Cave measured: 20? x 19.5? x 6? high. No evident roof defects. Primary roof support = 6 ? foot resin-assisted torque tension bolts (4?x 4? centers). Secondary support = 12-foot cable bolts (8? x 8? centers).

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