# HOISTING
> MSHA accident `220201780007` · 06/21/2020 · Resolution Copper Mining LLC
## 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:** —
- **Mine experience:** — years
## Operator
- **Controller:** RTZ Corp  PLC; BHP Billiton PLC
- **Operator:** Resolution Copper Mining LLC
- **Mine:** [0200152](https://api.ai-analytics.org/mine/0200152)
## Narrative

The main hoist would not pass the start of shift brake test, upon investigation the pinion brake disk was found to have oil on it. Oil was determined to have come from the adjacent hoist bearing. 

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