# ENTRAPMENT
> MSHA accident `220122010041` · 07/12/2012 · United States Steel Corp-Minnesota Ore Operations
## Details
- **Degree of injury:** ACCIDENT ONLY
- **Classification:** ENTRAPMENT
- **Accident type:** Accident type, without injuries
- **Occupation:** —
- **Activity:** —
- **Injury source:** —
- **Nature of injury:** —
- **Body part:** —
- **Days lost:** 0
- **Mine experience:** — years
## Operator
- **Controller:** USX Corp (United States Steel Corp)
- **Operator:** United States Steel Corp-Minnesota Ore Operations
- **Mine:** [2103352](https://api.ai-analytics.org/mine/2103352)
## Narrative

Limit switch failure.  Phoned MSHA @ 8:10 a.m.  Trapped personnel were Maintenance Manager, MTM and Laborer.  Time of release 8:30 a.m.  There were 270 hourly employees, 43 salaried employees and 78 contractors working on site at time of entrapment.

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