# FALL OF ROOF OR BACK
> MSHA accident `220143440028` · 12/02/2014 · Northern Star (Pogo) 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:** —
- **Mine experience:** — years
## Operator
- **Controller:** Sumitomo Metal Mining Co Ltd
- **Operator:** Northern Star (Pogo) LLC
- **Mine:** [5001642](https://api.ai-analytics.org/mine/5001642)
## Narrative

At approximately 10:30pm the operator called the shifter to the 1020E. The operator had been bolting in the 1020E with bolter#7 when he heard a big boom. The boom was approximately 150tons of rock falling in the 1020E 1020W intersection. The operator shut the power off to the drill and walked out along left rib under the supported ground and notified the shifter.

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