# FALL OF ROOF OR BACK
> MSHA accident `220132730051` · 09/27/2013 · Bonanza Explorations, 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:** 0
- **Mine experience:** — years
## Operator
- **Controller:** American Bonanza Gold Corporation
- **Operator:** Bonanza Explorations, Inc.
- **Mine:** [0203000](https://api.ai-analytics.org/mine/0203000)
## Narrative

A popping noise was heard in the 2WC drift-shifter proceeded to the area-pulled miners from the heading-barricaded it off-called the mine super-The Super got here-proceeded underground-was informed the area was starting to let go-The area was almost down past the ground support-he knew that it would continue to fail past the ground support-He called MSHA 800 number.

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