Event Notification Report for September 04, 2022
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
09/03/2022 - 09/04/2022
Power Reactor
Event Number: 56088
Facility: North Anna
Region: 2 State: VA
Unit: [1] [2] []
RX Type: [1] W-3-LP,[2] W-3-LP,[3] M-4-LP
NRC Notified By: Matt Morgan
HQ OPS Officer: Brian P. Smith
Region: 2 State: VA
Unit: [1] [2] []
RX Type: [1] W-3-LP,[2] W-3-LP,[3] M-4-LP
NRC Notified By: Matt Morgan
HQ OPS Officer: Brian P. Smith
Notification Date: 09/04/2022
Notification Time: 20:30 [ET]
Event Date: 09/04/2022
Event Time: 19:39 [EDT]
Last Update Date: 09/04/2022
Notification Time: 20:30 [ET]
Event Date: 09/04/2022
Event Time: 19:39 [EDT]
Last Update Date: 09/04/2022
Emergency Class: Unusual Event
10 CFR Section:
50.72(a) (1) (i) - Emergency Declared
10 CFR Section:
50.72(a) (1) (i) - Emergency Declared
Person (Organization):
Miller, Mark (R2DO)
ILTAB, (EMAIL)
Crouch, Howard (IR)
MacDonald, Mark (ILTAB)
Gavrilas, Mirela (NSIR)
Miller, Mark (R2DO)
ILTAB, (EMAIL)
Crouch, Howard (IR)
MacDonald, Mark (ILTAB)
Gavrilas, Mirela (NSIR)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
| 2 | N | N | 0 | Refueling | 0 | Refueling |
SECURITY EVENT - UNAUTHORIZED INDIVIDUAL IN OWNER CONTROLLED AREA
At 1939 EDT, the North Anna Power Station Units 1/2 declared a Notice of Unusual Event (NOUE) under emergency declaration HU1.1 confirmed security event. Both units were unaffected by the event. The licensee exited the NOUE at 2036 EDT.
At 1939 EDT, the North Anna Power Station Units 1/2 declared a Notice of Unusual Event (NOUE) under emergency declaration HU1.1 confirmed security event. Both units were unaffected by the event. The licensee exited the NOUE at 2036 EDT.
Power Reactor
Event Number: 56089
Facility: Nine Mile Point
Region: 1 State: NY
Unit: [2] [] []
RX Type: [1] GE-2,[2] GE-5
NRC Notified By: Patrick Walsh
HQ OPS Officer: Brian P. Smith
Region: 1 State: NY
Unit: [2] [] []
RX Type: [1] GE-2,[2] GE-5
NRC Notified By: Patrick Walsh
HQ OPS Officer: Brian P. Smith
Notification Date: 09/04/2022
Notification Time: 21:31 [ET]
Event Date: 09/04/2022
Event Time: 16:39 [EDT]
Last Update Date: 09/04/2022
Notification Time: 21:31 [ET]
Event Date: 09/04/2022
Event Time: 16:39 [EDT]
Last Update Date: 09/04/2022
Emergency Class: Non Emergency
10 CFR Section:
50.72(b)(3)(iv)(A) - Valid Specif Sys Actuation
10 CFR Section:
50.72(b)(3)(iv)(A) - Valid Specif Sys Actuation
Person (Organization):
Gray, Mel (R1DO)
Gray, Mel (R1DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | N | N | 0 | Hot Standby | 0 | Hot Standby |
EN Revision Imported Date: 9/7/2022
EN Revision Text: REACTOR SCRAM SIGNAL WHEN SHUTDOWN
The following information was provided by the licensee via fax:
"On September 4, 2022 with Unit 2 in Mode 3, an [Reactor Protection System] RPS actuation and Containment Isolation occurred on [Reactor Pressure Vessel] RPV Low Level (Level 3) of 159.3 inches due to issues with the normal feedwater level control system during plant cooldown.
"The RPS actuation occurred with control rods already inserted and a containment isolation on Level 3. The containment isolation signal impacted [Residual Heat Removal] RHR Shutdown Cooling, RHR letdown to radwaste, and RHR sampling. All impacted valves were closed at the time the isolation occurred. Operators took manual control of RPV level and restored level to the normal operating band shortly after the low level was received.
"This is being reported under 10CFR50.72(b)(3)(iv)(A) and 10CFR50.72(b)(3)(iv)(B)."
The NRC Resident Inspector was notified.
EN Revision Text: REACTOR SCRAM SIGNAL WHEN SHUTDOWN
The following information was provided by the licensee via fax:
"On September 4, 2022 with Unit 2 in Mode 3, an [Reactor Protection System] RPS actuation and Containment Isolation occurred on [Reactor Pressure Vessel] RPV Low Level (Level 3) of 159.3 inches due to issues with the normal feedwater level control system during plant cooldown.
"The RPS actuation occurred with control rods already inserted and a containment isolation on Level 3. The containment isolation signal impacted [Residual Heat Removal] RHR Shutdown Cooling, RHR letdown to radwaste, and RHR sampling. All impacted valves were closed at the time the isolation occurred. Operators took manual control of RPV level and restored level to the normal operating band shortly after the low level was received.
"This is being reported under 10CFR50.72(b)(3)(iv)(A) and 10CFR50.72(b)(3)(iv)(B)."
The NRC Resident Inspector was notified.