# HANDLING OF MATERIALS
> MSHA accident `220120790023` · 03/08/2012 · Rio Grande Mining Company
## Details
- **Degree of injury:** NO DYS AWY FRM WRK,NO RSTR ACT
- **Classification:** HANDLING OF MATERIALS
- **Accident type:** Struck by... NEC
- **Occupation:** Ledgeman/hand, Quarry man
- **Activity:** Machine maintenance
- **Injury source:** METAL,NEC(PIPE,WIRE,NAIL)
- **Nature of injury:** CUT,LACER,PUNCT-OPN WOUND
- **Body part:** JAW INCLUDE CHIN
- **Days lost:** 0
- **Mine experience:** 1 years
## Operator
- **Controller:** Aurcana Corporation
- **Operator:** Rio Grande Mining Company
- **Mine:** [4102905](https://api.ai-analytics.org/mine/4102905)
## Narrative

Failed set screw on roll up door spring caused roll up door to spin. Chain hoist bracket struck employee in chin causing laceration

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