Event Notification Report for November 11, 2006
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
11/10/2006 - 11/11/2006
Power Reactor
Event Number: 42985
Facility: COOPER
Region: 4 State: NE
Unit: [1] [] []
RX Type: [1] GE-4
NRC Notified By: SCOTT COON
HQ OPS Officer: STEVE SANDIN
Region: 4 State: NE
Unit: [1] [] []
RX Type: [1] GE-4
NRC Notified By: SCOTT COON
HQ OPS Officer: STEVE SANDIN
Notification Date: 11/11/2006
Notification Time: 06:46 [ET]
Event Date: 11/11/2006
Event Time: 05:30 [CST]
Last Update Date: 11/11/2006
Notification Time: 06:46 [ET]
Event Date: 11/11/2006
Event Time: 05:30 [CST]
Last Update Date: 11/11/2006
Emergency Class: UNUSUAL EVENT
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED 50.72(b)(2)(xi) - OFFSITE NOTIFICATION
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED 50.72(b)(2)(xi) - OFFSITE NOTIFICATION
Person (Organization):
JEFFREY CLARK (R4)
BILL BATEMAN (NRR)
PETER WILSON (IRD)
GOMEZ (SWO) (DHS)
KEN SWEETSER (FEMA)
JEFFREY CLARK (R4)
BILL BATEMAN (NRR)
PETER WILSON (IRD)
GOMEZ (SWO) (DHS)
KEN SWEETSER (FEMA)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | N | 0 | Refueling | 0 | Refueling |
UNUSUAL EVENT DECLARED DUE TO AN ELECTRICAL FIRE INVOLVING HEAT TRACE
At 0530 CST, CNS declared an Unusual Event per EAL 5.1.1 "Any fire within the Protected Area which takes longer than 10 minutes to extinguish," due to a fire involving the Standby Liquid Control (SLC) heat tracing. Operators in the control room received a report from the Refueling Floor that heat trace installed on piping of the SLC System in Reactor Building 976 East was "arcing & sparking." Responders on-scene extinguished the fire after de-energizing the heat trace by opening the associated electrical feeder breaker. All personnel are accounted for and there are no reported injuries.
The licensee will conduct a comprehensive review to determine the extent of damage. The SLC System is a TS required safety system but is not required for current plant conditions. No other safety-related equipment was affected. The licensee is not augmenting staff in response to this event and no offsite assistance was requested.
The licensee informed State and local agencies and the NRC Resident Inspector who is enroute to the site.
* * * UPDATE AT 0733 EST ON 11/11/06 FROM STEVEN JOBE TO S. SANDIN * * *
The licensee terminated the Unusual Event at 0558 CST on 11/11/06 based on the judgment of Station Management since the extent of condition is well understood, the affected electrical circuit is isolated and that no reflash watch is necessary. The licensee informed State and local agencies and the NRC Resident Inspector.
Notified R4DO (Clark), EO (Bateman), IRD (Wilson), DHS (Gomez) and FEMA (Sweetser).
* * * UPDATE AT 0942 EST ON 11/11/06 FROM ED McCUTCHEN TO S. SANDIN * * *
The licensee will be issuing a press release regarding this incident and has informed the NRC Resident Inspector. Notified R4DO (Clark).
At 0530 CST, CNS declared an Unusual Event per EAL 5.1.1 "Any fire within the Protected Area which takes longer than 10 minutes to extinguish," due to a fire involving the Standby Liquid Control (SLC) heat tracing. Operators in the control room received a report from the Refueling Floor that heat trace installed on piping of the SLC System in Reactor Building 976 East was "arcing & sparking." Responders on-scene extinguished the fire after de-energizing the heat trace by opening the associated electrical feeder breaker. All personnel are accounted for and there are no reported injuries.
The licensee will conduct a comprehensive review to determine the extent of damage. The SLC System is a TS required safety system but is not required for current plant conditions. No other safety-related equipment was affected. The licensee is not augmenting staff in response to this event and no offsite assistance was requested.
The licensee informed State and local agencies and the NRC Resident Inspector who is enroute to the site.
* * * UPDATE AT 0733 EST ON 11/11/06 FROM STEVEN JOBE TO S. SANDIN * * *
The licensee terminated the Unusual Event at 0558 CST on 11/11/06 based on the judgment of Station Management since the extent of condition is well understood, the affected electrical circuit is isolated and that no reflash watch is necessary. The licensee informed State and local agencies and the NRC Resident Inspector.
Notified R4DO (Clark), EO (Bateman), IRD (Wilson), DHS (Gomez) and FEMA (Sweetser).
* * * UPDATE AT 0942 EST ON 11/11/06 FROM ED McCUTCHEN TO S. SANDIN * * *
The licensee will be issuing a press release regarding this incident and has informed the NRC Resident Inspector. Notified R4DO (Clark).
Power Reactor
Event Number: 42986
Facility: BRUNSWICK
Region: 2 State: NC
Unit: [] [2] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: MARK SCHALL
HQ OPS Officer: JASON KOZAL
Region: 2 State: NC
Unit: [] [2] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: MARK SCHALL
HQ OPS Officer: JASON KOZAL
Notification Date: 11/11/2006
Notification Time: 16:31 [ET]
Event Date: 11/11/2006
Event Time: 12:43 [EST]
Last Update Date: 11/11/2006
Notification Time: 16:31 [ET]
Event Date: 11/11/2006
Event Time: 12:43 [EST]
Last Update Date: 11/11/2006
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):
PAUL FREDRICKSON (R2)
PAUL FREDRICKSON (R2)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | M/R | Y | 1 | Startup | 0 | Hot Shutdown |
REACTOR SCRAM DUE TO CONDUCTIVITY EXCURSION
"At 1243 EST, during startup activities, a manual reactor scram was inserted as a result of high conductivity in the condenser. It is believed that the high conductivity was the result of a condenser tube leak. Upon receipt of the conductivity excursion alarm, abnormal operating procedures were consulted and the manual scram was inserted. Unit 2 was at approximately 1 percent of rated thermal power and reactor pressure was approximately 100 psi. At the time of the conductivity excursion, the condensate system was not in service and, as such, reactor water chemistry was not adversely affected. All safety systems operated per design. No emergency core cooling systems (ECCS) actuated.
"Unit 2 will be taken to mode 4 and the necessary repairs will be completed."
All control rods inserted as expected. The licensee believes there is no spread of high conductivity to adjacent systems (e.g. CRD and the CST). Confirmatory samples are in progress. Decay heat is being removed by RCIC in the pressure control mode with the intention of placing shutdown cooling in-service. The electrical system is in a normal shutdown lineup.
The licensee notified the NRC Resident Inspector.
"At 1243 EST, during startup activities, a manual reactor scram was inserted as a result of high conductivity in the condenser. It is believed that the high conductivity was the result of a condenser tube leak. Upon receipt of the conductivity excursion alarm, abnormal operating procedures were consulted and the manual scram was inserted. Unit 2 was at approximately 1 percent of rated thermal power and reactor pressure was approximately 100 psi. At the time of the conductivity excursion, the condensate system was not in service and, as such, reactor water chemistry was not adversely affected. All safety systems operated per design. No emergency core cooling systems (ECCS) actuated.
"Unit 2 will be taken to mode 4 and the necessary repairs will be completed."
All control rods inserted as expected. The licensee believes there is no spread of high conductivity to adjacent systems (e.g. CRD and the CST). Confirmatory samples are in progress. Decay heat is being removed by RCIC in the pressure control mode with the intention of placing shutdown cooling in-service. The electrical system is in a normal shutdown lineup.
The licensee notified the NRC Resident Inspector.