# FALLING/SLIDING/ROLLING MATERIALS
> MSHA accident `220102460022` · 09/01/2010 · Teck Alaska Inc
## Details
- **Degree of injury:** NO DYS AWY FRM WRK,NO RSTR ACT
- **Classification:** FALLING/SLIDING/ROLLING MATERIALS
- **Accident type:** Struck by falling object
- **Occupation:** Rock driller
- **Activity:** Surface equipment, NEC
- **Injury source:** WOOD ITEMS,NEC
- **Nature of injury:** HEARING LOSS OR IMPAIRMNT
- **Body part:** EAR(S) INTERNAL & HEARING
- **Days lost:** 0
- **Mine experience:** 0.04 years
## Operator
- **Controller:** Teck Resources Limited
- **Operator:** Teck Alaska Inc
- **Mine:** [5001545](https://api.ai-analytics.org/mine/5001545)
## Narrative

Drill shack roof support failed.  Roof strut and 3/8"" plywood fell onto Driller's hard hat.  Driller was knocked unconscious.  Driller recovered later but has continuing hearing loss in left ear.  Transported for further evaluation.

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