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Alert

Due to a lapse in appropriations, the NRC has ceased normal operations. However, excepted and exempted activities necessary to maintain critical health and safety functions—as well as essential progress on designated critical activities, including those specified in Executive Order 14300—will continue, consistent with the OMB-Approved NRC Lapse Plan.

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Preliminary Notification (PN) Reports for 2021

| January | June | July | August | October

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October
PNO-III-22-001 10/19/2021 Dresden Nuclear Power Station, Unit 3: Unplanned Shutdown Greater Than 72 Hours and Notice of Unusual Event for a Fire Affecting the Dresden Unit 3 Main Power Transformer
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August
PNO-IV-21-001A 08/19/2021 Union Electric Company/Callaway Plant: Update: Callaway Restart Following Plant Automatic Reactor Trip Due to Main Generator Fault and Shutdown Greater Than 72 Hours
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July
PNO-lll-21-001A 07/09/2021 Donald C. Cook Nuclear Plant, Unit 2, Update: Unplanned Shutdown Greater Than 7 Days Due To Main Steam Leakage
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June
PNO-lll-21-001 06/30/2021 Donald C. Cook Nuclear Plant, Unit 2: Unplanned Shutdown Greater Than 7 Days Due To Main Steam Leakage
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January
PNO-IV-21-001 01/19/2021 Union Electric Company/Callaway Plant: Update: Callawy Plant Automatic Reactor Trip due to Main Generator Fault, and Shutdown Greater than 72 Hours
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Page Last Reviewed/Updated Tuesday, October 19, 2021

Page Last Reviewed/Updated Tuesday, October 19, 2021