# HOISTING
> MSHA accident `220173040020` · 10/24/2017 · Mountain Coal Company, L.L.C.
## 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:** Arch Resources Inc
- **Operator:** Mountain Coal Company, L.L.C.
- **Mine:** [0503672](https://api.ai-analytics.org/mine/0503672)
## Narrative

Upon daily hoist inspection, the hoist computer system was malfunctioning which prevented the operation of the hoist.  It was determined that the battery backup caused the problem.  The battery backup was disconnected and hoist functions returned.  The hoist was not repaired within 30 minutes. 

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