# EXPLODING VESSELS UNDER PRESSURE
> MSHA accident `220220670001` · 02/18/2022 · UNACEM North America
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** EXPLODING VESSELS UNDER PRESSURE
- **Accident type:** Struck by flying object
- **Occupation:** Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech
- **Activity:** Machine maintenance
- **Injury source:** METAL,NEC(PIPE,WIRE,NAIL)
- **Nature of injury:** MULTIPLE INJURIES
- **Body part:** TRUNK, MULTIPLE PARTS
- **Days lost:** 339
- **Mine experience:** 8 years
## Operator
- **Controller:** UNACEM Corp S A A
- **Operator:** UNACEM North America
- **Mine:** [0203243](https://api.ai-analytics.org/mine/0203243)
## Narrative

After turning off the loaded bucket elevator the back stop failed and the bucket elevator overspeed backwards which overspeed the fluid coupling causing it to explode. Pieces from the fluid coupling struck EE in the back. The pieces broke EE's ribs and ruptured EE's spleen and bruises.

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