Event Notification Report for October 16, 2021
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
10/15/2021 - 10/16/2021
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
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
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
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)
PELKE, PATRICIA (R3)
Giessner, John (R3 RA)
Veil, Andrea (NRR)
KENNEDY, SILAS (IR)
| 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 |
EN Revision Imported Date: 11/16/2021
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).
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
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
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
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS Actuation - Critical
Person (Organization):
PELKE, PATRICIA (R3)
PELKE, PATRICIA (R3)
| 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 |
EN Revision Imported Date: 11/16/2021
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.
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.