Nuclear reactor unexpectedly shuts down in Callaway County

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.

FULTON, MO (KTVI) – Ameren’s Callaway 1 nuclear reactor unexpectedly shut down Wednesday.  A release from the Missouri Coalition for the Environment says it was operating at 100% when it shut down just after midnight.

An unexpected main turbine trip caused the shutdown.  A report posted to the US Nuclear Regulatory Commission states this, “Caused a reactor trip occurred on 12/03/2014 with the plant operating in Mode 1 at 100 percent power. As part of the plant design, an expected, valid actuation of the Auxiliary Feedwater System occurred in response to the reactor trip. As part of the Auxiliary Feedwater actuation, the ‘B’ Motor Driven Auxiliary Feedwater Pump to ‘D’ Steam Generator throttle valve did not throttle as expected and was manually isolated. All other systems functioned normally in response to the plant conditions. The plant is currently stable in Mode 3 at 0 percent power. Safety related buses are receiving normal off-site power and the grid is currently stable.

All control rods fully inserted on the reactor trip. Steam generator levels are being maintained by the AFW system and decay heat is being removed by the main condenser. No primary or secondary safety relief valves lifted during the transient.”


About FOX 2 News

FOX 2 and KPLR 11 in St. Louis cover the news in Missouri and Illinois. There are over 68 hours of live news and local programming on-air each week. Our website and live video streams operate 24/7. Download our apps for alerts and follow us on social media for updates in your feed.

President Harry Truman said: “It is amazing what you can accomplish if you do not care who gets the credit.” That spirit is alive and well at Fox 2. Our teamwork is on display each and every day.

Our news slogan is: “Coverage You Can Count On.” We quite frankly are too busy to worry about who gets the credit. Our main concern is serving the viewer.

We go where the stories take us. Whether it be Washington, D.C when a Belleville man opened fire during a congressional baseball game practice or to Puerto Rico where local Ameren crews restored power after more than 5 months in the dark.

Coverage You Can Count On means “Waking up your Day” with our top-rated morning show. From 4:00 am-10:00 am we are leading the way with breaking news. But our early morning crew also knows how to have some fun! Our strong commitment to the communities we serve is highlighted with our Friday neighborhood shows.

Our investigative unit consists of three reporters. Elliott Davis focuses on government waste, Chris Hayes is our investigative reporter, and Mike Colombo is our consumer reporter. They work in unison with the news department by sharing resources and ideas.

We continue to cover breaking news aggressively and relied on our seasoned journalists to make a difference with the stories we covered. The shooting of Arnold Police Officer Ryan O’Connor is just one example of that. Jasmine Huda was the only reporter who had exclusive access to the O’Connor family during his amazing rehabilitation in Colorado.

Last, but certainly not least, FOX 2 and KPLR 11 are committed to covering local politics. We host debates among candidates and have the most extensive presidential election coverage. Our commitment to politics isn’t just during an election year. We produce two political shows that air every weekend.


Latest News

More News