Event Notification Report for January 13, 2019
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
01/12/2019 - 01/13/2019
EVENT NUMBERS
53824
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
Power Reactor
Event Number: 53824
Facility: CLINTON
Region: 3 State: IL
Unit: [1] [] []
RX Type: [1] GE-6
NRC Notified By: TIM LANIER
HQ OPS Officer: MARK ABRAMOVITZ
Region: 3 State: IL
Unit: [1] [] []
RX Type: [1] GE-6
NRC Notified By: TIM LANIER
HQ OPS Officer: MARK ABRAMOVITZ
Notification Date: 01/13/2019
Notification Time: 17:49 [ET]
Event Date: 01/13/2019
Event Time: 08:30 [CST]
Last Update Date: 03/07/2019
Notification Time: 17:49 [ET]
Event Date: 01/13/2019
Event Time: 08:30 [CST]
Last Update Date: 03/07/2019
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
10 CFR Section:
50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
Person (Organization):
DAVID HILLS (R3DO)
DAVID HILLS (R3DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 99 | Power Operation | 99 | Power Operation |
HIGH PRESSURE CORE SPRAY SELF TEST FAILURE
"On January 13, 2019, the Self Test System reported a fault associated with the logic system for the High Pressure Core Spray (HPCS) high reactor water level closure function that could prevent the system from performing its safety function. The HPCS system was subsequently declared inoperable with actions taken per LCO [Limiting Condition for Operation] 3.6.1.3 to close and deactivate the 1E12-F004 valve, a primary containment isolation valve.
"Since HPCS is an emergency core cooling system and is a single train safety system, this condition is reportable under 10 CFR 50.72(b)(3)(v)(D) 'Any event or condition that could have prevented the fulfillment of the safety function of structures or systems that are needed to mitigate the consequences of an accident.'
"The NRC Resident Inspector has been notified."
HPCS is in a 14-day technical specification LCO action statement.
* * * RETRACTION AT 1908 EST ON 3/7/19 FROM JAMES FORMAN TO JEFF HERRERA * * *
"Testing of the logic system load driver card for the High Pressure Core Spray (HPCS) high reactor water level closure function was completed both on site and at General Electric Hitachi (GEH). This testing determined the cause of the self-test system fault report was limited to the self-test portion of the load driver card and did not impact the ability of HPCS system to perform its specified safety function.
"Based on the testing results, this event is not reportable under 10 CFR 50.72(b)(3)(v)(D), 'Any event or condition that could have prevented the fulfillment of the safety function of structures or systems that are needed to mitigate the consequences of an accident.' Therefore, EN 53824 is being retracted.
"The NRC Resident Inspector has been notified."
Notified the R3DO (Hills).
"On January 13, 2019, the Self Test System reported a fault associated with the logic system for the High Pressure Core Spray (HPCS) high reactor water level closure function that could prevent the system from performing its safety function. The HPCS system was subsequently declared inoperable with actions taken per LCO [Limiting Condition for Operation] 3.6.1.3 to close and deactivate the 1E12-F004 valve, a primary containment isolation valve.
"Since HPCS is an emergency core cooling system and is a single train safety system, this condition is reportable under 10 CFR 50.72(b)(3)(v)(D) 'Any event or condition that could have prevented the fulfillment of the safety function of structures or systems that are needed to mitigate the consequences of an accident.'
"The NRC Resident Inspector has been notified."
HPCS is in a 14-day technical specification LCO action statement.
* * * RETRACTION AT 1908 EST ON 3/7/19 FROM JAMES FORMAN TO JEFF HERRERA * * *
"Testing of the logic system load driver card for the High Pressure Core Spray (HPCS) high reactor water level closure function was completed both on site and at General Electric Hitachi (GEH). This testing determined the cause of the self-test system fault report was limited to the self-test portion of the load driver card and did not impact the ability of HPCS system to perform its specified safety function.
"Based on the testing results, this event is not reportable under 10 CFR 50.72(b)(3)(v)(D), 'Any event or condition that could have prevented the fulfillment of the safety function of structures or systems that are needed to mitigate the consequences of an accident.' Therefore, EN 53824 is being retracted.
"The NRC Resident Inspector has been notified."
Notified the R3DO (Hills).