# HOISTING
> MSHA accident `220121800013` · 06/21/2012 · U.S. Silver-Idaho, Inc.
## Details
- **Degree of injury:** ACCIDENT ONLY
- **Classification:** HOISTING
- **Accident type:** Accident type, without injuries
- **Occupation:** —
- **Activity:** —
- **Injury source:** —
- **Nature of injury:** —
- **Body part:** —
- **Days lost:** 0
- **Mine experience:** — years
## Operator
- **Controller:** U S Silver Corporation
- **Operator:** U.S. Silver-Idaho, Inc.
- **Mine:** [1000082](https://api.ai-analytics.org/mine/1000082)
## Narrative

The hoist had been shut down for service and when it was restarted the south electrical pot on the automatic slip regulator arced, burning the contacts. A subsequent inspection revealed that the insulation at the contacts burned through the rubber boot. This pot had been sent in to be refurbished and it appears that there was a small gap in the insulation that caused the problem.

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