Event Notification Report for September 03, 2011
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
09/02/2011 - 09/03/2011
Power Reactor
Event Number: 47238
Facility: VERMONT YANKEE
Region: 1 State: VT
Unit: [1] [] []
RX Type: [1] GE-4
NRC Notified By: MICHAEL PLETCHER
HQ OPS Officer: DONALD NORWOOD
Region: 1 State: VT
Unit: [1] [] []
RX Type: [1] GE-4
NRC Notified By: MICHAEL PLETCHER
HQ OPS Officer: DONALD NORWOOD
Notification Date: 09/03/2011
Notification Time: 03:28 [ET]
Event Date: 09/03/2011
Event Time: 02:35 [EDT]
Last Update Date: 09/03/2011
Notification Time: 03:28 [ET]
Event Date: 09/03/2011
Event Time: 02:35 [EDT]
Last Update Date: 09/03/2011
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(i) - PLANT S/D REQD BY TS
10 CFR Section:
50.72(b)(2)(i) - PLANT S/D REQD BY TS
Person (Organization):
EUGENE DIPAOLO (R1DO)
EUGENE DIPAOLO (R1DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 99 | Power Operation | 96 | Power Operation |
TECHNICAL SPECIFICATION REQUIRED SHUTDOWN DUE TO RHR/CS ROOM COOLER BEING INOPERABLE
"Technical specification required shutdown due to reactor recirculation unit #7 [RHR/CS Room Cooler] inoperable. This cooling unit impacts the operability of 'A' Low Pressure Coolant Injection (LPCI) and 'A' Core Spray (CS).
"Entered TS 3.5.A.6. Commenced reducing power for 24 hour cold shutdown LCO."
The licensee has initiated repairs to the cooling unit.
The licensee notified the NRC Resident Inspector.
* * * UPDATE AT 1432 EDT ON 09/03/11 FROM JAMES KRITZER TO S. SANDIN * * *
The licensee exited TS 3.5.A.6 at 1000 EDT and declared CS operable after implementing compensatory measures. They are currently in a 7-day LCO Action Statement and expect to complete repairs within the time allowed. The Unit is currently holding power at 98%.
The licensee informed the NRC Resident Inspector.
"Technical specification required shutdown due to reactor recirculation unit #7 [RHR/CS Room Cooler] inoperable. This cooling unit impacts the operability of 'A' Low Pressure Coolant Injection (LPCI) and 'A' Core Spray (CS).
"Entered TS 3.5.A.6. Commenced reducing power for 24 hour cold shutdown LCO."
The licensee has initiated repairs to the cooling unit.
The licensee notified the NRC Resident Inspector.
* * * UPDATE AT 1432 EDT ON 09/03/11 FROM JAMES KRITZER TO S. SANDIN * * *
The licensee exited TS 3.5.A.6 at 1000 EDT and declared CS operable after implementing compensatory measures. They are currently in a 7-day LCO Action Statement and expect to complete repairs within the time allowed. The Unit is currently holding power at 98%.
The licensee informed the NRC Resident Inspector.
Power Reactor
Event Number: 47239
Facility: MILLSTONE
Region: 1 State: CT
Unit: [] [2] []
RX Type: [1] GE-3,[2] CE,[3] W-4-LP
NRC Notified By: KEN HAJNAL
HQ OPS Officer: MARK ABRAMOVITZ
Region: 1 State: CT
Unit: [] [2] []
RX Type: [1] GE-3,[2] CE,[3] W-4-LP
NRC Notified By: KEN HAJNAL
HQ OPS Officer: MARK ABRAMOVITZ
Notification Date: 09/03/2011
Notification Time: 15:35 [ET]
Event Date: 09/03/2011
Event Time: 15:30 [EDT]
Last Update Date: 09/03/2011
Notification Time: 15:35 [ET]
Event Date: 09/03/2011
Event Time: 15:30 [EDT]
Last Update Date: 09/03/2011
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(i) - PLANT S/D REQD BY TS
10 CFR Section:
50.72(b)(2)(i) - PLANT S/D REQD BY TS
Person (Organization):
EUGENE DIPAOLO (R1DO)
EUGENE DIPAOLO (R1DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | N | Y | 100 | Power Operation | 100 | Power Operation |
TECHNICAL SPECIFICATION REQUIRED SHUTDOWN DUE TO "A" TRAIN SERVICE WATER LEAK
A leak in the "A" train of the service water system was identified on August 17, 2011. The leak is in the auxiliary building at the minus 5' elevation and the water is being collected in the waste drain tank. At 1530 on September 3, 2011, the leak was quantified as being less than 15 gpm and the service water system was declared inoperable in accordance with Technical Specification (TS) 3.7.4.1 for the Service Water System and the Technical Requirements Manual 3.4.10 for Structural Integrity. The leak is on a 10" flange between two bolt holes in a welded area of the flange. Maintenance has been able to reduce the leakage to approximately 3 gpm.
The plant is in a 72 hour Tech Spec and is making preparations to shutdown to mode 5 for repairs.
The licensee notified the NRC Resident Inspector and will notify state and local authorities.
A leak in the "A" train of the service water system was identified on August 17, 2011. The leak is in the auxiliary building at the minus 5' elevation and the water is being collected in the waste drain tank. At 1530 on September 3, 2011, the leak was quantified as being less than 15 gpm and the service water system was declared inoperable in accordance with Technical Specification (TS) 3.7.4.1 for the Service Water System and the Technical Requirements Manual 3.4.10 for Structural Integrity. The leak is on a 10" flange between two bolt holes in a welded area of the flange. Maintenance has been able to reduce the leakage to approximately 3 gpm.
The plant is in a 72 hour Tech Spec and is making preparations to shutdown to mode 5 for repairs.
The licensee notified the NRC Resident Inspector and will notify state and local authorities.