# FALL OF ROOF OR BACK
> MSHA accident `220172640022` · 09/03/2017 · Hecla Greens Creek Mining Company
## 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:** Hecla Mining Company
- **Operator:** Hecla Greens Creek Mining Company
- **Mine:** [5001267](https://api.ai-analytics.org/mine/5001267)
## Narrative

743 Stope, backfill in back with small section of rock in back. High back (28') due to conventional bench being taken. Back and ribs all bolted with 6' split set bolts, galvanized wire, 8' swellex in left rib, and 4-12' swellex in left rib. 

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