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Event Notification Report for January 14, 2019

U.S. Nuclear Regulatory Commission
Operations Center

EVENT REPORTS FOR
01/13/2019 - 01/14/2019

EVENT NUMBERS
53825

Power Reactor
Event Number: 53825
Facility: FERMI
Region: 3     State: MI
Unit: [2] [] []
RX Type: [2] GE-4
NRC Notified By: JEFF MYERS
HQ OPS Officer: THOMAS KENDZIA
Notification Date: 01/14/2019
Notification Time: 13:12 [ET]
Event Date: 01/14/2019
Event Time: 09:58 [EST]
Last Update Date: 01/14/2019
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
Person (Organization):
PATRICIA PELKE (R3DO)
Power Reactor Unit Info
Unit SCRAM Code RX Crit Initial PWR Initial RX Mode Current PWR Current RX Mode
2 N Y 100 Power Operation 100 Power Operation
Event Text
ACTIVE SEISMIC MONITORING SYSTEM INOPERABLE

"On 01/11/2019 at 0958 EST, the Fermi 2 Active Seismic Monitoring system was taken out of service for planned maintenance. During the maintenance activity, the Active Seismic Monitoring System failed a planned surveillance test and was not restored to operability within 72 hours. Compensatory measures to provide alternative methods for event classification of a seismic event were implemented in accordance with the Fermi 2 Emergency Plan procedures prior to the start of the planned maintenance outage. The planned outage time to restore operability exceeded 72 hours on January 14th, 2019, at 0958 EST. Repairs have been completed, the Active Seismic Monitoring System has been declared Functional at 1037 EST, January 14th, 2019, and declared Operable at 1109 EST, January 14th, 2019.

"The loss of the Active Seismic Monitoring System is reportable to the NRC within 8 hours of discovery in accordance with 10 CFR 50.72(b)(3)(xiii).

"No seismic activity has been felt onsite and the United States Geological Survey (USGS) recorded no seismic activity in the area.

"The NRC Resident Inspector has been notified."

Femi 2 has two seismic monitors, one on the Reactor Pressure Vessel Pedestal and one in the High Pressure Core Injection (HPCI) room. Only the HPCI room monitor was inoperable.