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Event Notification Report for April 25, 2021

U.S. Nuclear Regulatory Commission
Operations Center

EVENT REPORTS FOR
04/24/2021 - 04/25/2021

EVENT NUMBERS
55213
Power Reactor
Event Number: 55213
Facility: Harris
Region: 2     State: NC
Unit: [1] [] []
RX Type: [1] W-3-LP
NRC Notified By: Kevin O'Brien
HQ OPS Officer: Thomas Kendzia
Notification Date: 04/25/2021
Notification Time: 11:50 [ET]
Event Date: 04/25/2021
Event Time: 12:00 [EDT]
Last Update Date: 04/25/2021
Emergency Class: Non Emergency
10 CFR Section:
50.72(b)(3)(xiii) - Loss Comm/Asmt/Response
Person (Organization):
MILLER, MARK (R2)
Power Reactor Unit Info
Unit SCRAM Code RX Crit Initial PWR Initial RX Mode Current PWR Current RX Mode
1 N N 0 Cold Shutdown 0 Cold Shutdown
Event Text
EN Revision Imported Date: 5/25/2021

EN Revision Text: SEISMIC MONITORING SYSTEM OUT OF SERVICE FOR PLANNED MAINTENANCE

"At 1200 EDT on April 25, 2021, planned maintenance activities on the Harris Nuclear Plant Seismic Monitoring System will be performed. The work includes performance of preventive maintenance and system upgrades. The work duration is approximately 10 days and compensatory measures will be in place for seismic monitoring.

"This is an eight-hour, non-emergency notification for a planned loss of emergency assessment capability. This event is reportable in accordance with 10 CFR 50.72(b)(3)(xiii). There is no impact on the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified."