# FALL OF ROOF OR BACK
> MSHA accident `220003530130` · 12/06/2000 · Molycorp Inc
## 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:** —
- **Mine experience:** — years
## Operator
- **Controller:** Unocal Corp
- **Operator:** Molycorp Inc
- **Mine:** [2901267](https://api.ai-analytics.org/mine/2901267)
## Narrative

A GROUND FALL (APPROX 400 CUFT) OCCURED AT THE INTERSECITON OF LINE 15 AND THE EAST RELIAF X-CUT DRIFT IN THE 7222 UNDERCUT REVELY. THE ROCKS IN THIS AREA ARE CLAYRICH (I.E. ARGILLIZED), SOFT , WEAK, FRACTURED AND WETHER THEN OTHER AREA. LINE 15 AN 8.5'X8.5' DRIFT WAS INITIALLY SUPPORTED IWTH 4' SLLIT SET BOLTS 2"" WIRE MESH AND BACK SPOTTED WITH 6' BOLTS.

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