Event Notification Report for October 18, 2021
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
10/15/2021 - 10/18/2021
Power Reactor
Event Number: 55521
Facility: Palo Verde
Region: 4 State: AZ
Unit: [1] [2] [3]
RX Type: [1] CE,[2] CE,[3] CE
NRC Notified By: Sean Dornseif
HQ OPS Officer: Bethany Cecere
Notification Date: 10/14/2021
Notification Time: 14:30 [ET]
Event Date: 10/13/2021
Event Time: 14:20 [MST]
Last Update Date: 10/14/2021
Emergency Class: Non Emergency
10 CFR Section:
26.719 - Fitness For Duty
Person (Organization):
ALEXANDER, RYAN (R4)
FFD GROUP, (EMAIL)
Power Reactor Unit Info
| 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 |
| 3 |
N |
Y |
100 |
Power Operation |
100 |
Power Operation |
Event Text
EN Revision Imported Date: 10/18/2021
EN Revision Text: FITNESS FOR DUTY - NON-LICENSED SUPERVISOR VIOLATED THE FFD POLICY
"On October 13, 2021, at 1420 MST, a Non-Licensed Supervisor's test results were confirmed positive for use of a controlled substance following a random Fitness For Duty test which resulted in determination that the individual violated the station's FFD Policy. The Non-Licensed Supervisor's unescorted access has been terminated in accordance with station procedures.
"The NRC Senior Resident Inspector has been notified."
Power Reactor
Event Number: 55522
Facility: Fermi
Region: 3 State: MI
Unit: [2] [] []
RX Type: [2] GE-4
NRC Notified By: Nikolas Schafer
HQ OPS Officer: Bethany Cecere
Notification Date: 10/14/2021
Notification Time: 19:27 [ET]
Event Date: 10/14/2021
Event Time: 13:20 [EDT]
Last Update Date: 10/14/2021
Emergency Class: Non Emergency
10 CFR Section:
50.72(b)(3)(v)(C) - Pot Uncntrl Rad Rel
Person (Organization):
PELKE, PATRICIA (R3)
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
EN Revision Imported Date: 10/18/2021
EN Revision Text: TRAVERSING IN-CORE PROBE A BALL VALVE INOPERABLE
"At 1320 EDT, during a Traversing In-Core Probe (TIP) run for a scheduled Local Power Range Monitors (LPRM) calibration, it was reported to the Main Control Room that TIP A would not fully retract to the In-Shield position. With TIP A unable to fully retract to the In-Shield position the TIP A Ball Valve was declared Inoperable due to not being able to close and meet its safety function in that configuration.
Furthermore the TIP A Shear Valve was previously declared Inoperable due to the Firing Fuses being removed. With the two valves Inoperable the penetration could not be isolated and Primary Containment boundary isolation could not be established.
"TIP A was subsequently manually hand cranked and placed back into its In-Shield position at 1333 EDT restoring TIP A Ball Valve Operable.
"This report is being made pursuant to 10CFR50.72(b)(3)(v)(C) based on control the release of radioactive material.
"The Senior NRC Resident Inspector has been notified."
Power Reactor
Event Number: 55523
Facility: Oconee
Region: 2 State: SC
Unit: [1] [2] [3]
RX Type: [1] B&W-L-LP,[2] B&W-L-LP,[3] B&W-L-LP
NRC Notified By: Keith Robinson
HQ OPS Officer: Brian P. Smith
Notification Date: 10/15/2021
Notification Time: 08:52 [ET]
Event Date: 10/14/2021
Event Time: 17:27 [EDT]
Last Update Date: 10/15/2021
Emergency Class: Non Emergency
10 CFR Section:
26.719 - Fitness For Duty
Person (Organization):
MILLER, MARK (R2)
FFD GROUP, (EMAIL)
Power Reactor Unit Info
| 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 |
Y |
100 |
Power Operation |
100 |
Power Operation |
| 3 |
N |
Y |
100 |
Power Operation |
100 |
Power Operation |
Event Text
EN Revision Imported Date: 10/18/2021
EN Revision Text: FITNESS FOR DUTY - FAILED TEST
"At 1727 [EDT] on October 14, 2021, it was determined that a licensed operator failed a test specified by the Fitness-For-Duty (FFD) testing program. The individual's authorization for site access has been terminated.
"The NRC Resident Inspector has been notified."
Power Reactor
Event Number: 55526
Facility: Diablo Canyon
Region: 4 State: CA
Unit: [2] [] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: Meagan Nolan
HQ OPS Officer: Kerby Scales
Notification Date: 10/15/2021
Notification Time: 23:28 [ET]
Event Date: 10/15/2021
Event Time: 17:49 [PDT]
Last Update Date: 10/15/2021
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
Person (Organization):
ALEXANDER, RYAN (R4)
Power Reactor Unit Info
| Unit |
SCRAM Code |
RX Crit |
Initial PWR |
Initial RX Mode |
Current PWR |
Current RX Mode |
| 2 |
M/R |
Y |
90 |
Power Operation |
0 |
Hot Standby |
Event Text
EN Revision Imported Date: 10/18/2021
EN Revision Text: MANUAL REACTOR TRIP AND AUTOMATIC AUXILIARY FEEDWATER ACTUATION
"On October 15, 2021, at 1749 PDT with Diablo Canyon Power Plant Unit 2 operating at approximately 90 percent power, the reactor was manually tripped in accordance with plant procedures due to increasing water level in feedwater heater 2-5B. The reactor trip was uncomplicated and the Auxiliary Feedwater system started as expected. The plant is stable in Mode 3.
"This notification is being made in accordance the requirements of 10 CFR 50.72(b)(2)(iv)(B) as a manual actuation of the reactor protection system and 10 CFR 50.72(b)(3)(iv)(A) as an automatic actuation of a specified safety system.
"The cause of the increased feedwater level is under investigation. There was no impact to the health and safety of the public or plant personnel.
"The Resident Inspector has been notified."
Power Reactor
Event Number: 55527
Facility: Dresden
Region: 3 State: IL
Unit: [3] [] []
RX Type: [2] GE-3,[3] GE-3
NRC Notified By: Jory Hansen
HQ OPS Officer: Bethany Cecere
Notification Date: 10/16/2021
Notification Time: 07:22 [ET]
Event Date: 10/16/2021
Event Time: 05:28 [CDT]
Last Update Date: 10/16/2021
Emergency Class: Unusual Event
10 CFR Section:
50.72(a) (1) (i) - Emergency Declared
Person (Organization):
PELKE, PATRICIA (R3)
Giessner, John (R3 RA)
Veil, Andrea (NRR)
KENNEDY, SILAS (IR)
Power Reactor Unit Info
| Unit |
SCRAM Code |
RX Crit |
Initial PWR |
Initial RX Mode |
Current PWR |
Current RX Mode |
| 3 |
A/R |
Y |
100 |
Power Operation |
0 |
Hot Standby |
Event Text
EN Revision Imported Date: 10/18/2021
EN Revision Text: UNUSUAL EVENT DECLARED DUE TO A FIRE IN THE PROTECTED AREA
"[An] Unusual Event [was declared] due to a fire in the protected area not extinguished in less than 60 minutes.
"Main power transformer 3 faulted, the unit auto scrammed, all rods are in. The fire went out at 0622 CDT. [The licensee] is monitoring for re-flash."
The unit automatically scrammed and all rods fully inserted. Decay heat removal is through the condenser. Unit 2 is unaffected and remains at 100 percent power.
The licensee notified the NRC Resident Inspector and R3 Branch Chief (Riemer).
Notified DHS SWO, FEMA Operations Center, CISA Central, FEMA NWC (email), and DHS Nuclear SSA (email).
* * * UPDATE ON 10/16/21 AT 0848 EDT FROM DAVID KIJOWSKI TO BETHANY CECERE * * *
The Unusual Event was terminated at 0709 CDT.
Notified R3DO (Pelke), NRR EO (Felts), IR MOC (Kennedy), DHS SWO, FEMA Operations Center, CISA Central, FEMA NWC (email), and DHS Nuclear SSA (email).
Power Reactor
Event Number: 55528
Facility: Dresden
Region: 3 State: IL
Unit: [3] [] []
RX Type: [2] GE-3,[3] GE-3
NRC Notified By: David Kijowski
HQ OPS Officer: Bethany Cecere
Notification Date: 10/16/2021
Notification Time: 09:10 [ET]
Event Date: 10/16/2021
Event Time: 04:28 [CDT]
Last Update Date: 10/16/2021
Emergency Class: Non Emergency
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS Actuation - Critical
Person (Organization):
PELKE, PATRICIA (R3)
Power Reactor Unit Info
| Unit |
SCRAM Code |
RX Crit |
Initial PWR |
Initial RX Mode |
Current PWR |
Current RX Mode |
| 3 |
A/R |
Y |
100 |
Power Operation |
0 |
Hot Standby |
Event Text
EN Revision Imported Date: 10/18/2021
EN Revision Text: AUTOMATIC SCRAM FOLLOWING TURBINE TRIP
"On October 16, 2021 at 0428 CDT, an automatic scram was received on Unit 3 following a turbine trip. All Rods inserted to their full in position. All systems actuated and operated as expected. Unit 3 is being maintained in Mode 3, hot standby.
"This event is being reported pursuant to 10CFR 50.72(b)(2)(iv)(B), any event or condition that results in actuation of the reactor protection system (RPS) when the reactor is critical.
"The NRC Resident Inspector has been notified."
The event is related to Event Number 55527.