# FALL OF ROOF OR BACK
> MSHA accident `220210340010` · 02/02/2021 · Knight Hawk Coal, LLC
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** FALL OF ROOF OR BACK
- **Accident type:** Struck by falling object
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Machine maintenance
- **Injury source:** CAVING ROCK,COAL,ORE,WSTE
- **Nature of injury:** FRACTURE,CHIP
- **Body part:** BACK (MUSCLES/SPINE/S-CORD/TAILBONE)
- **Days lost:** 165
- **Mine experience:** 11.46 years
## Operator
- **Controller:** CBR Investments LLC; Arch Coal Inc
- **Operator:** Knight Hawk Coal, LLC
- **Mine:** [1103147](https://api.ai-analytics.org/mine/1103147)
## Narrative

I.E. was repairing the continuous miner.  While positioned at the main controller panel a rock measuring 7'Lx3'Wx up to 5 inches thick fell from in between the bolts.  The rock landed on top of the CM and then slid down the machine striking the I.E.  I.E. received a fracture in one of their vertebrae and a laceration on their head.

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