| U.S. Nuclear Regulatory Commission
Operations Center Event Reports For
08/11/2010 - 08/12/2010 ** EVENT NUMBERS ** |
 | Power Reactor | Event Number: 46164 | Facility: SUSQUEHANNA
Region: 1 State: PA
Unit: [1] [ ] [ ]
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: MARTIN LICHNTER
HQ OPS Officer: HOWIE CROUCH | Notification Date: 08/10/2010
Notification Time: 10:02 [ET]
Event Date: 08/10/2010
Event Time: 09:11 [EDT]
Last Update Date: 08/11/2010 | Emergency Class: ALERT
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED
| Person (Organization):
MARC FERDAS (R1DO)
MARC DAPAS (R1RA)
BRUCE BOGER (NRR)
JOHN THORP (NRR)
WILLIAM GOTT (IRD)
|
| Unit | SCRAM Code | RX CRIT | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode | | 1 | N | Y | 100 | Power Operation | 100 | Power Operation | Event Text ALERT DECLARED DUE TO FREON-12 LEAK IN REACTOR BUILDING CHILLER
"At 0911 EDT, the Susquehanna LLC Shift Manager was notified that a member of the SSES [Susquehanna Steam Electric Station] work force was feeling ill effects from a Freon-12 leak located in a plant vital area. This met the declaration criteria for an Alert under [EAL] OA-7 of the emergency plan which was declared at 0922 EDT.
"The affected area has been evacuated and recovery actions are in progress to isolate the leak. No personnel were injured or medical attention was required."
The leak is in the 1A Reactor Building chiller unit. At the time of notification, the leak was still active. The licensee is preparing a team to enter the area to investigate. No outside assistance is required.
Notified DHS (Hill), FEMA (Heyman), DOE (Smith), USDA (Mitchell) and HHS (Rolle).
* * * UPDATE FROM DARVIN DUTTRY TO DONALD NORWOOD AT 0044 EDT ON 8/11/2010 * * *
"At 2335 EDT on 8/10/10, the Alert was terminated. The Chiller has been evacuated of Freon-12. Freon detectors show no presence of Freon-12 on U1 Reactor Building Elevation 749 [feet], except in the immediate vicinity from the leak site with temporary ventilation in service.
"All state and local agencies have been advised, the NRC Resident Inspector has been notified and a press release will be made."
Agencies that the licensee notified included the Columbia County Emergency Management Agency, the Luzerne County Emergency Management Agency, the Pennsylvania Emergency Management Agency and the Pennsylvania Department of Environmental Protection.
Notified R1DO (Ferdas), NRR EO (Nelson), IRD Manager (Gott), DHS (Doyle), FEMA (O'Connell), DOE (Morrone), HHS (White), and USDA (Timmons). |
| Power Reactor | Event Number: 46167 | Facility: OCONEE
Region: 2 State: SC
Unit: [ ] [ ] [3]
RX Type: [1] B&W-L-LP,[2] B&W-L-LP,[3] B&W-L-LP
NRC Notified By: MIKE JONES
HQ OPS Officer: VINCE KLCO | Notification Date: 08/11/2010
Notification Time: 13:04 [ET]
Event Date: 08/11/2010
Event Time: 12:07 [EDT]
Last Update Date: 08/11/2010 | Emergency Class: UNUSUAL EVENT
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED
| Person (Organization):
BINOY DESAI (R2DO)
ROBERT NELSON (NRR)
BRUCE BOGER (NRR)
VICTOR McCREE (R2)
WILLIAM GOTT (IRD)
|
| Unit | SCRAM Code | RX CRIT | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode | | 3 | N | Y | 100 | Power Operation | 100 | Power Operation | Event Text UNIT 3 DECLARED AN UNUSUAL EVENT DUE TO LOSS OF ANNUNCIATORS
"While repairing a control room alarm panel, a screw was dropped. This appears to have caused a breaker (3D1B-27) to trip, which caused a loss of greater than 50% of the control room alarm panels.
"A team is being assembled to develop trouble shooting plan to restore alarm panels. Enhanced plant monitoring is being put in place until alarm panels are restored."
Approximately half of the control room annunciators are locked in and/or non-functional.
The licensee notified the NRC Resident Inspector. Notified DHS (Hill), FEMA (Heyman), DOE (Yates), HHS (Baker) and USDA (Shaffer).
* * * UPDATE FROM JOHN SAWYER TO VINCE KLCO ON 8/11/10 AT 2151 EDT* * *
At 2130 EDT, Unit 3 exited from the UNUSUAL EVENT based on returning to service greater than 50% of alarm panels. Compensatory measures are in place for the alarm panels which have no audible signal.
The licensee notified appropriate state and local agencies. The licensee also notified the NRC Resident Inspector.
Agencies that the licensee notified included South Carolina and North Carolina warning points, the South Carolina Emergency Management Agency and the Oconee and Pickens County Emergency Management Agencies.
Notified R2DO (Desai), NRR EO (Nelson), IRD Manager (Gott), DHS ( Gates), FEMA (Blankenship), DOE (Bailey), HHS(Grimes) and USDA (Timmons). |
| Fuel Cycle Facility | Event Number: 46168 | Facility: GLOBAL NUCLEAR FUEL - AMERICAS
RX Type: URANIUM FUEL FABRICATION
Comments: LEU CONVERSION (UF6 TO UO2)
LEU FABRICATION
LWR COMMERICAL FUEL
Region: 2
City: WILMINGTON State: NC
County: NEW HANOVER
License #: SNM-1097
Agreement: Y
Docket: 07001113
NRC Notified By: SCOTT MURRAY
HQ OPS Officer: VINCE KLCO | Notification Date: 08/11/2010
Notification Time: 14:45 [ET]
Event Date: 01/25/2010
Event Time: 09:50 [EDT]
Last Update Date: 08/11/2010 | Emergency Class: NON EMERGENCY
10 CFR Section:
PART 70 APP A (b)(2) - LOSS OR DEGRADED SAFETY ITEMS
| Person (Organization):
BINOY DESAI (R2DO)
LARRY CAMPBELL (NMSS)
| Event Text DEGRADATION OF AN ITEM RELIED ON FOR SAFETY
"On January 25, 2010 during normal operation of a slugger press in the Fuel Manufacturing Building, a tube connecting the feed hood to the press became disconnected. After starting the vibrating feeder, an operator discovered the feed tube was slightly misaligned and some [uranium] powder had spilled into the hood. The operator immediately used the emergency stop button and the equipment was shutdown. A total of 6.9 kg was removed from the hood. An investigation determined that a clamp on the feed tube came loose, allowing the tube to separate from the fit up device.
"The two controlled parameters for criticality safety for this equipment are moderation and geometry and Items Relied on for Safety (IROFS) are established for both. When the tube became misaligned, one geometry related IROFS became unavailable to perform its intended safety function. Additional lROFS on geometry and moderation remained available to perform their intended safety functions and were not challenged. Therefore, this did not result in an unsafe condition.
"GNF-A's [Global Nuclear Fuel-Americas] initial review determined this event was not reportable. However, during an inspection February 22 to 26, 2010, NRC evaluated the event and determined that during the period when the tube was misaligned, one IROFS was not available to perform its intended safety function. Therefore, facility performance requirements were not met and a report to the NRC was required.
"The NRC issued a notice of violation to GNF-A on March 26, 2010 (70-1113/2010-002-01) for failure to report the event pursuant to 10CFR70 Appendix A(b)(2). The event is now being reported retroactively to satisfy this reporting requirement."
The licensee notified the NRC Region 2 Office, the North Carolina Radiation Protection Section and the New Hanover County Emergency Response Organization. | |