# EXPLODING VESSELS UNDER PRESSURE
> MSHA accident `220053110017` · 11/03/2005 · CalMat Co
## Details
- **Degree of injury:** NO DYS AWY FRM WRK,NO RSTR ACT
- **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:** Hand tools (not powered)
- **Injury source:** WRENCH
- **Nature of injury:** CUT,LACER,PUNCT-OPN WOUND
- **Body part:** FACE, MULTIPLE PARTS
- **Days lost:** 0
- **Mine experience:** 0.56 years
## Operator
- **Controller:** Legacy Vulcan Corp (Form:Vulcan Materials Co)
- **Operator:** CalMat Co
- **Mine:** [0202933](https://api.ai-analytics.org/mine/0202933)
## Narrative

Employee was attempting to remove the hydraulic lines from the hydraulic pump setup.  When he loosened a threaded line that was under pressure, the line blew and the force caused the employee to be struck with the wrench he was using to loosen the line.

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