Tag Archives: Minnesota

Event Reports: Loss of offsite power, seismic vulnerability, a dropped control element assembly and another and another Fitness for Duty violation

This week in nuclear power kicked on Hallloween: 1. Friday afternoon, the Diablo Canyon nuclear power facility in California experienced an unplanned activation of all six of the plant’s emergency diesel generators when a thunderstorm knocked out offsite power to the station. … Continue reading

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Event Report: Problem at Monticello plant shows why nuke licenses should not be extended

This morning, Minnesota’s Monticello nuclear power plant informed the Nuclear Regulatory Commission (NRC) that it had determined that a number of relays in the facility’s sole reactor had exceeded their analyzed shelf life and as a result had been declared … Continue reading

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Event Report: Loss of Control Room boundary at Minnesota nuke

Yesterday morning, the Prairie Island nuclear power plant in Minnesota lost both unit’s Control Room Special Vent Boundary when a door handle in the Control Room fell off. Air could be felt flowing through the hole, causing an opening in … Continue reading

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Event Reports: False earthquake report in Minnesota and a false start on maintenance in Connecticut

Two items from today’s Event Notification Report page on the NRC website: 1. Friday afternoon, the Seismic Monitor at Minnesota’s Prairie Island nuclear power plant indicated an earthquake had occurred. Prairie Island operators determined that the alarm was invalid, based … Continue reading

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Event Reports: A reactor shuts itself down in Mississippi, a Fitness for Duty report from Connecticut and another day, another open door

From today’s Nuclear Regulatory Commission’s Event Notification Report page: 1. On Sunday, the sole reactor at the Grand Gulf nuclear power plant in Mississippi shut itself down following a turbine trip. Grand Gulf’s report stressed that all the shutdown systems … Continue reading

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Event Reports: Leftover parts in Minnesota and a false alarm in Pennsylvania

A couple of items from today’s the Nuclear Regulatory Commission’s Event Notification Report page: 1. On New Year’s Eve, the Prairie Island nuclear power plant informed the NRC that it had “discovered that multiple upper lateral support shims and bumpers … Continue reading

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Event Reports: Reactor scrams in Pennsylvania, New York, Texas and New Jersey; excess radiation in Minnesota, a fire in New York, a toxic gas release in Ohio and a drunken supervisor in Florida

This post is kind of lengthy, as I haven’t been able to get around to looking at Event Reports for a couple of weeks. Here’s the news: 1. Early in the morning of Friday, November 9, operators at the Susquehanna … Continue reading

Posted in Comanche Peak, Event Reports, Fire, Fitness for Duty, FitzPatrick, Monticello, Nuclear Regulatory Commission, Perry, Plant shutdowns, Reactor problems, Salem, Susquehanna, Turkey Point, Vogtle | Tagged , , , , , , , , , , , , , , , , , , , | Leave a comment