Event Notification Report for February 04, 2022
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
02/03/2022 - 02/04/2022
Power Reactor
Event Number: 55732
Facility: Fermi
Region: 3 State: MI
Unit: [2] [] []
RX Type: [2] GE-4
NRC Notified By: Whitney Hemingway
HQ OPS Officer: Brian Lin
Region: 3 State: MI
Unit: [2] [] []
RX Type: [2] GE-4
NRC Notified By: Whitney Hemingway
HQ OPS Officer: Brian Lin
Notification Date: 02/04/2022
Notification Time: 20:30 [ET]
Event Date: 02/04/2022
Event Time: 17:00 [EST]
Last Update Date: 02/04/2022
Notification Time: 20:30 [ET]
Event Date: 02/04/2022
Event Time: 17:00 [EST]
Last Update Date: 02/04/2022
Emergency Class: Non Emergency
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS Actuation - Critical 50.72(b)(3)(iv)(A) - Valid Specif Sys Actuation
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS Actuation - Critical 50.72(b)(3)(iv)(A) - Valid Specif Sys Actuation
Person (Organization):
Orth, Steve (R3)
Orth, Steve (R3)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | A/R | Y | 58 | Power Operation | 0 | Hot Standby |
EN Revision Imported Date: 3/4/2022
EN Revision Text: AUTOMATIC REACTOR SCRAM
The following information was provided by the licensee via email:
"At 1700 EST, on February 4, 2022 with the unit in Mode 1 at 58 percent power, the reactor automatically scrammed due to low Reactor water level due to a transient on the Feedwater System while preparing to shutdown for a refueling outage. The scram was not complex, with systems responding normally post-scram.
"Operations responded and stabilized the plant. Reactor water level has been recovered and maintained at normal level. Decay Heat is being removed by the Main Steam system to the main condenser using the Turbine Bypass Valves. All Control Rods inserted into the core. The transient occurred while in the process of removing the South Reactor Feed Pump from service. While reducing speed on the South, the North Reactor Feed Pump increased in speed and tripped on low suction. The plant was preparing to shut down for a refueling outage when the trip occurred.
"Due to the reactor protection system actuation while critical, this event is being reported as a four-hour, non-emergency notification per 10 CFR 50.72(b)(2)(iv)(B). Additionally, in preparation of plant shutdown, Primary Containment De-Inerting was in progress. The low Reactor water level caused an isolation of Primary Containment (Groups 4/13/15). The Primary Containment Isolation Event is being reported under 10 CFR 50.72(b)(3)(iv)(A). There was no impact to the health and safety of the public or plant personnel. The NRC resident has been notified."
EN Revision Text: AUTOMATIC REACTOR SCRAM
The following information was provided by the licensee via email:
"At 1700 EST, on February 4, 2022 with the unit in Mode 1 at 58 percent power, the reactor automatically scrammed due to low Reactor water level due to a transient on the Feedwater System while preparing to shutdown for a refueling outage. The scram was not complex, with systems responding normally post-scram.
"Operations responded and stabilized the plant. Reactor water level has been recovered and maintained at normal level. Decay Heat is being removed by the Main Steam system to the main condenser using the Turbine Bypass Valves. All Control Rods inserted into the core. The transient occurred while in the process of removing the South Reactor Feed Pump from service. While reducing speed on the South, the North Reactor Feed Pump increased in speed and tripped on low suction. The plant was preparing to shut down for a refueling outage when the trip occurred.
"Due to the reactor protection system actuation while critical, this event is being reported as a four-hour, non-emergency notification per 10 CFR 50.72(b)(2)(iv)(B). Additionally, in preparation of plant shutdown, Primary Containment De-Inerting was in progress. The low Reactor water level caused an isolation of Primary Containment (Groups 4/13/15). The Primary Containment Isolation Event is being reported under 10 CFR 50.72(b)(3)(iv)(A). There was no impact to the health and safety of the public or plant personnel. The NRC resident has been notified."
Agreement State
Event Number: 55730
Rep Org: Arizona Dept of Health Services
Licensee:
Region: 4
City: Flagstaff State: AZ
County:
License #: GL
Agreement: Y
Docket:
NRC Notified By: Brian Goretzki
HQ OPS Officer: Brian Lin
Licensee:
Region: 4
City: Flagstaff State: AZ
County:
License #: GL
Agreement: Y
Docket:
NRC Notified By: Brian Goretzki
HQ OPS Officer: Brian Lin
Notification Date: 02/04/2022
Notification Time: 16:58 [ET]
Event Date: 02/04/2022
Event Time: 00:00 [MST]
Last Update Date: 02/04/2022
Notification Time: 16:58 [ET]
Event Date: 02/04/2022
Event Time: 00:00 [MST]
Last Update Date: 02/04/2022
Emergency Class: Non Emergency
10 CFR Section:
Agreement State
10 CFR Section:
Agreement State
Person (Organization):
Josey, Jeffrey (R4)
NMSS_Events_Notification, (EMAIL)
ILTAB, (EMAIL)
CNSNS (Mexico), - (FAX)
Josey, Jeffrey (R4)
NMSS_Events_Notification, (EMAIL)
ILTAB, (EMAIL)
CNSNS (Mexico), - (FAX)
EN Revision Imported Date: 3/4/2022
EN Revision Text: AGREEMENT STATE REPORT - STOLEN TRITIUM EXIT SIGNS
The following information was received from the state of Arizona via email:
"The Department received a call from a construction project manager who stated that 110-116 tritium exit signs were stolen by a contractor and are being held at his residence in Flagstaff, Arizona. A police report has been filed with the Coconino Police Department.
"Additional information will be provided as it is received in accordance with SA-300."
AZ report no.: 22-001
EN Revision Text: AGREEMENT STATE REPORT - STOLEN TRITIUM EXIT SIGNS
The following information was received from the state of Arizona via email:
"The Department received a call from a construction project manager who stated that 110-116 tritium exit signs were stolen by a contractor and are being held at his residence in Flagstaff, Arizona. A police report has been filed with the Coconino Police Department.
"Additional information will be provided as it is received in accordance with SA-300."
AZ report no.: 22-001