# EXPLODING VESSELS UNDER PRESSURE
> MSHA accident `220251260014` · 04/25/2025 · Freeport-McMoRan Sierrita Ops.
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** EXPLODING VESSELS UNDER PRESSURE
- **Accident type:** Struck by flying object
- **Occupation:** Water circuit operator, Slurry operator, Mix operator, Pump operator worker
- **Activity:** Machine maintenance
- **Injury source:** BROKEN ROCK,COAL,ORE,WSTE
- **Nature of injury:** CONTUSN,BRUISE,INTAC SKIN
- **Body part:** MULTIPLE PARTS (MORE THAN ONE MAJOR)
- **Days lost:** 5
- **Mine experience:** 15.62 years
## Operator
- **Controller:** Freeport-McMoRan Inc
- **Operator:** Freeport-McMoRan Sierrita Ops.
- **Mine:** [0200144](https://api.morvs.ai/mine/0200144)
## Narrative

EE was removing a valve stem cover plate. After removing the first 4 bolts, they proceeded to remove 2 more. As EE was removing the second, the knife valve split apart, causing slurry to shoot out the side. Slurry came into contact with the EE. EE sustained abrasions and multiple contusions. EE was issued restrictions.

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