# FALL OF ROOF OR BACK
> MSHA accident `220122680014` · 09/13/2012 · Chief Mining, 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:** Kenneth R  Calloway
- **Operator:** Chief Mining, Inc. 
- **Mine:** [4608959](https://api.ai-analytics.org/mine/4608959)
## Narrative

The mains section had advanced under a hollow. The #9 intersection began to take weight. The # 9 return entry at 1 break inby spad # 2112 was cribbed off. no effort was made to save the intersection. The intersection in the #8 return entry was reinforced with cribs, steel beams, jacks and longer bolts.

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