Event Notification Report for December 30, 2008
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
12/29/2008 - 12/30/2008
EVENT NUMBERS
44746
Power Reactor
Event Number: 44746
Facility: KEWAUNEE
Region: 3 State: WI
Unit: [1] [] []
RX Type: [1] W-2-LP
NRC Notified By: TIM BUNKELMAN
HQ OPS Officer: BILL HUFFMAN
Region: 3 State: WI
Unit: [1] [] []
RX Type: [1] W-2-LP
NRC Notified By: TIM BUNKELMAN
HQ OPS Officer: BILL HUFFMAN
Notification Date: 12/30/2008
Notification Time: 16:36 [ET]
Event Date: 12/30/2008
Event Time: 11:13 [CST]
Last Update Date: 12/30/2008
Notification Time: 16:36 [ET]
Event Date: 12/30/2008
Event Time: 11:13 [CST]
Last Update Date: 12/30/2008
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(ii)(B) - UNANALYZED CONDITION 50.72(b)(3)(v)(A) - POT UNABLE TO SAFE SD 50.72(b)(3)(v)(B) - POT RHR INOP 50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
10 CFR Section:
50.72(b)(3)(ii)(B) - UNANALYZED CONDITION 50.72(b)(3)(v)(A) - POT UNABLE TO SAFE SD 50.72(b)(3)(v)(B) - POT RHR INOP 50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
Person (Organization):
JAMNES CAMERON (R3)
JAMNES CAMERON (R3)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
NON-FUNCTIONAL STEAM EXCLUSION / CONTROL ROOM EXCLUSION ZONE (CREZ) BARRIER
"On 12/30/08 at 1113 an Operator transiting though a steam exclusion / CREZ door found the door sweep separated from the door. This prevented the door from performing its Steam Exclusion and CREZ boundary functions as the opening, due to the missing sweep, exceeded the allowable opening size for the respective functions.
"Repairs were completed on the door at 1157 on 12/30/08. While the door sweep was not intact, the barrier was non-functional. In accordance with TRM 3.0.9 Section A.1 all equipment supported by that steam exclusion barrier was immediately declared inoperable. This zone includes both trains of Control Room Post Accident Recirculation and the Control Room itself. TS 3.0.c was entered when the sweep was identified degraded and exited following repairs.
"Therefore, this is reportable under 10CFR50.72(b)(3)(v), 'Any event or condition that at the time of discovery could have prevented the fulfillment of a safety function', and under 10CFR50.72(b)(3)(ii)(B), 'any event or condition that results in the nuclear plant being in an unanalyzed condition that significantly degrades plant safety'.
"The licensee notified the NRC Resident Inspector."
"On 12/30/08 at 1113 an Operator transiting though a steam exclusion / CREZ door found the door sweep separated from the door. This prevented the door from performing its Steam Exclusion and CREZ boundary functions as the opening, due to the missing sweep, exceeded the allowable opening size for the respective functions.
"Repairs were completed on the door at 1157 on 12/30/08. While the door sweep was not intact, the barrier was non-functional. In accordance with TRM 3.0.9 Section A.1 all equipment supported by that steam exclusion barrier was immediately declared inoperable. This zone includes both trains of Control Room Post Accident Recirculation and the Control Room itself. TS 3.0.c was entered when the sweep was identified degraded and exited following repairs.
"Therefore, this is reportable under 10CFR50.72(b)(3)(v), 'Any event or condition that at the time of discovery could have prevented the fulfillment of a safety function', and under 10CFR50.72(b)(3)(ii)(B), 'any event or condition that results in the nuclear plant being in an unanalyzed condition that significantly degrades plant safety'.
"The licensee notified the NRC Resident Inspector."