Earlier this week, I told you about some open doors and the resulting loss of containment at a couple of nuclear power plants. This morning’s Event Notification Report page contained another.
The Davis Besse nuclear power plant in Ohio reported that a boundary door to the Shield Building Negative Pressure Area failed to latch when an employee left the area, “thereby preventing fulfillment of the Station Emergency Ventilation System safety function.”
The incident occurred on Monday, but was not reported until today. According to the Event Report: “This event was previously considered not reportable. Subsequent review determined the event reportable.”