Event Notification Report for December 21, 2008
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
12/20/2008 - 12/21/2008
EVENT NUMBERS
44738
Power Reactor
Event Number: 44738
Facility: LASALLE
Region: 3 State: IL
Unit: [1] [2] []
RX Type: [1] GE-5,[2] GE-5
NRC Notified By: MICHAEL FITZPATRICK
HQ OPS Officer: MARK ABRAMOVITZ
Region: 3 State: IL
Unit: [1] [2] []
RX Type: [1] GE-5,[2] GE-5
NRC Notified By: MICHAEL FITZPATRICK
HQ OPS Officer: MARK ABRAMOVITZ
Notification Date: 12/21/2008
Notification Time: 11:42 [ET]
Event Date: 12/21/2008
Event Time: 08:22 [CST]
Last Update Date: 12/21/2008
Notification Time: 11:42 [ET]
Event Date: 12/21/2008
Event Time: 08:22 [CST]
Last Update Date: 12/21/2008
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
Person (Organization):
RICHARD SKOKOWSKI (R3)
RICHARD SKOKOWSKI (R3)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 80 | Power Operation | 80 | Power Operation |
| 2 | N | Y | 98 | Power Operation | 98 | Power Operation |
WEATHER RELATED LOSS OF EMERGENCY SIRENS
"This telephone notification is provided in accordance with 10 CFR 50.72(b)(3)(xiii) to report complications from an ice storm, including a loss of power, which has disabled seventeen (17) of the fifty EP sirens (34%). The sirens were lost at 07:22 CST and have not been restored.
"This meets the threshold of Reportability based on the loss of a public notification system.
"Restoration efforts are underway and are expected to occur as soon as reasonably possible with the current winter weather conditions.
"At the time of the event, Unit 1 is at 80% power for scheduled surveillances and Unit 2 is at 98% power due to end of cycle conditions, and neither Unit power level is related to this event.
"Unit 1 will return to full power as scheduled and Unit 2 will remain at 98% power and both units are unaffected by the loss of power."
Twelve of the lost sirens were due to a loss of power. Five were lost due to a loss of communications with the data center.
The licensee notified the NRC Resident Inspector.
"This telephone notification is provided in accordance with 10 CFR 50.72(b)(3)(xiii) to report complications from an ice storm, including a loss of power, which has disabled seventeen (17) of the fifty EP sirens (34%). The sirens were lost at 07:22 CST and have not been restored.
"This meets the threshold of Reportability based on the loss of a public notification system.
"Restoration efforts are underway and are expected to occur as soon as reasonably possible with the current winter weather conditions.
"At the time of the event, Unit 1 is at 80% power for scheduled surveillances and Unit 2 is at 98% power due to end of cycle conditions, and neither Unit power level is related to this event.
"Unit 1 will return to full power as scheduled and Unit 2 will remain at 98% power and both units are unaffected by the loss of power."
Twelve of the lost sirens were due to a loss of power. Five were lost due to a loss of communications with the data center.
The licensee notified the NRC Resident Inspector.