Event Notification Report for December 31, 2015
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
12/30/2015 - 12/31/2015
EVENT NUMBERS
51630
Power Reactor
Event Number: 51630
Facility: PEACH BOTTOM
Region: 1 State: PA
Unit: [] [3] []
RX Type: [2] GE-4,[3] GE-4
NRC Notified By: CJ CAMPBELL
HQ OPS Officer: DANIEL MILLS
Region: 1 State: PA
Unit: [] [3] []
RX Type: [2] GE-4,[3] GE-4
NRC Notified By: CJ CAMPBELL
HQ OPS Officer: DANIEL MILLS
Notification Date: 12/31/2015
Notification Time: 13:15 [ET]
Event Date: 12/31/2015
Event Time: 06:30 [EST]
Last Update Date: 12/31/2015
Notification Time: 13:15 [ET]
Event Date: 12/31/2015
Event Time: 06:30 [EST]
Last Update Date: 12/31/2015
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):
RAY MCKINLEY (R1DO)
RAY MCKINLEY (R1DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 3 | N | Y | 100 | Power Operation | 100 | Power Operation |
HIGH PRESSURE COOLANT INJECTION INOPERABLE
"On 12/31/15, at approximately 0630 hours [EST], during shift turnover panel walk-downs, a licensed Unit 3 reactor operator identified that the High Pressure Coolant Injection (HPCI) flow controller output indicated a downscale condition. The controller was in automatic with the set point at 5000 gpm, which would typically indicate a controller output value of 100%. HPCI was not in operation and is a standby system. Operations promptly declared the HPCI system inoperable and entered Technical Specification Condition C for HPCI being inoperable. Other standby systems (Reactor Core Isolation Cooling and low pressure emergency core cooling systems) are OPERABLE.
"HPCI is a single train system. Therefore, per NUREG-1022, this condition is being reported pursuant to 10 CFR 50.72(b)(3)(v)(D) as a condition that could have prevented the fulfillment of the safety function of a system required to mitigate the consequences of a design event.
"This condition has been entered into the Corrective Action program (IR 2606215). Maintenance troubleshooting of the flow controller loop has identified a failed component and repair activities are in progress.
"The NRC Resident Inspector has been informed of this notification."
"On 12/31/15, at approximately 0630 hours [EST], during shift turnover panel walk-downs, a licensed Unit 3 reactor operator identified that the High Pressure Coolant Injection (HPCI) flow controller output indicated a downscale condition. The controller was in automatic with the set point at 5000 gpm, which would typically indicate a controller output value of 100%. HPCI was not in operation and is a standby system. Operations promptly declared the HPCI system inoperable and entered Technical Specification Condition C for HPCI being inoperable. Other standby systems (Reactor Core Isolation Cooling and low pressure emergency core cooling systems) are OPERABLE.
"HPCI is a single train system. Therefore, per NUREG-1022, this condition is being reported pursuant to 10 CFR 50.72(b)(3)(v)(D) as a condition that could have prevented the fulfillment of the safety function of a system required to mitigate the consequences of a design event.
"This condition has been entered into the Corrective Action program (IR 2606215). Maintenance troubleshooting of the flow controller loop has identified a failed component and repair activities are in progress.
"The NRC Resident Inspector has been informed of this notification."