# FALL OF ROOF OR BACK
> MSHA accident `220120690039` · 03/06/2012 · Pinnacle Mining Company LLC
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** FALL OF ROOF OR BACK
- **Accident type:** Struck by falling object
- **Occupation:** Apprentice, Trainee
- **Activity:** Machine maintenance
- **Injury source:** CAVING ROCK,COAL,ORE,WSTE
- **Nature of injury:** FRACTURE,CHIP
- **Body part:** HAND (NOT WRIST OR FINGERS)
- **Days lost:** 0
- **Mine experience:** 2.15 years
## Operator
- **Controller:** Cleveland-Cliffs Inc
- **Operator:** Pinnacle Mining Company LLC
- **Mine:** [4601816](https://api.ai-analytics.org/mine/4601816)
## Narrative

Employee removed his right hand metacarpal glove to tighten a restraining bolt on a cable.  As he finished the job, a rock fell from the top and glanced off his hard had, striking him on the back of the right hand at the index finger knuckle.  He was treated at Welch Emergency and diagnosed with a chipped bone.

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