# HOISTING
> MSHA accident `220110590014` · 02/25/2011 · United States Gypsum Company
## 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:** USG Corporation
- **Operator:** United States Gypsum Company
- **Mine:** [1300434](https://api.ai-analytics.org/mine/1300434)
## Narrative

While hoisting rock, the 3rd shift hoist operator had the brakes set and lock up on the #1 hoist.  After troubleshooting, maintenance personnel determined that a faulty output signal was affecting the hydraulic system.  This output card was replaced and the hoist was put back into service.  The mine maintained two means of escape with the two other operating personnel hoists.

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