# EXPLODING VESSELS UNDER PRESSURE
> MSHA accident `220241920021` · 07/02/2024 · Heidelberg Materials US Cement LLC
## Details
- **Degree of injury:** DYS AWY FRM WRK & RESTRCTD ACT
- **Classification:** EXPLODING VESSELS UNDER PRESSURE
- **Accident type:** Struck by flying object
- **Occupation:** Plumber, Pipefitter, Millwright
- **Activity:** Machine maintenance
- **Injury source:** METAL,NEC(PIPE,WIRE,NAIL)
- **Nature of injury:** FRACTURE,CHIP
- **Body part:** LOWER LEG/TIBIA/FIBULA
- **Days lost:** 5
- **Mine experience:** 1.5 years
## Operator
- **Controller:** Heidelberg Materials AG
- **Operator:** Heidelberg Materials US Cement LLC
- **Mine:** [1200063](https://api.morvs.ai/mine/1200063)
## Narrative

As the EE was getting set up to try to tighten a leaking hydraulic fitting and the fitting suddenly came apart. EE's lower left leg (shin) was struck by a piece of pipe that came off the system when the fitting came apart. The strike caused a laceration, impact bone fracture, and a hairline fracture to the EE's left shin.

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