# FALLING/SLIDING/ROLLING MATERIALS
> MSHA accident `220181060018` · 04/11/2018 · Teck Alaska Inc
## Details
- **Degree of injury:** DYS AWY FRM WRK & RESTRCTD ACT
- **Classification:** FALLING/SLIDING/ROLLING MATERIALS
- **Accident type:** Struck by falling object
- **Occupation:** Ball/Rod/Pebble/Hand/Limestone/Dry mill operator, Roller operator
- **Activity:** Mill equipment
- **Injury source:** METAL COVERS & GUARDS
- **Nature of injury:** CONTUSN,BRUISE,INTAC SKIN
- **Body part:** BACK (MUSCLES/SPINE/S-CORD/TAILBONE)
- **Days lost:** 7
- **Mine experience:** 5 years
## Operator
- **Controller:** Teck Resources Limited
- **Operator:** Teck Alaska Inc
- **Mine:** [5001545](https://api.ai-analytics.org/mine/5001545)
## Narrative

A contract supervisor was inspecting the work area. The supervisor who was wearing fall protection stepped onto a section of floor grating which had been left unsecured, it fell 25' striking a Mill operator on head. The injured Mill operator walked away from the incident scene after preliminary medical assessment and flown offsite for further evaluation.  

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