Skip to main content

Event Notification Report for November 24, 2010

U.S. Nuclear Regulatory Commission
Operations Center

EVENT REPORTS FOR
11/23/2010 - 11/24/2010

EVENT NUMBERS
4643646437

Power Reactor
Event Number: 46436
Facility: FERMI
Region: 3     State: MI
Unit: [2] [] []
RX Type: [2] GE-4
NRC Notified By: JIM KONRAD
HQ OPS Officer: DONALD NORWOOD
Notification Date: 11/24/2010
Notification Time: 16:00 [ET]
Event Date: 11/24/2010
Event Time: 15:15 [EST]
Last Update Date: 11/26/2010
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
Person (Organization):
BILLY DICKSON (R3DO)
Power Reactor Unit Info
Unit SCRAM Code RX Crit Initial PWR Initial RX Mode Current PWR Current RX Mode
2 N N 0 Cold Shutdown 0 Cold Shutdown
Event Text
SAFETY PARAMETER DISPLAY SYSTEM AND EMERGENCY RESPONSE DATA SYSTEM OUT OF SERVICE FOR PLANNED MAINTENANCE

"On 11/24/10 at 1515 EST, the Safety Parameter Display System (SPDS) and Emergency Response Data System (ERDS) were removed from service to support activities for a planned maintenance outage on the UPS vital bus power supply. The duration of work is expected to be approximately 48 hours. During this time, the majority of the Control Room indications remain available to the plant staff, and will be used for emergency response, if needed. Information will be communicated to the NRC using other available communication systems, if needed. The plant is currently in Mode 4, and will remain in Mode 4, for the duration of the SPDS and ERDS unavailability. Since the unavailability will last greater than 8 hours, this is considered a Loss of Emergency Assessment Capability, and reportable under 10CFR50.72(b)(3)(xiii).

"Followup notification will be made when SPDS and ERDS have been restored."

The licensee notified the NRC Resident Inspector.

* * * UPDATE AT 1850 EST ON 11/26/10 FROM JIM KONRAD TO S. SANDIN * * *

"Update to Event #46436: On 11/26/10 at 1733 EST, regarding Safety Parameter Display System (SPDS) and Emergency Response Data System (ERDS) systems removed from service to support planned maintenance on the UPS vital bus power supply.

"Planned work which resulted in the loss of SPDS and ERDS is complete. All Emergency Assessment Capabilities have been restored."

The licensee informed the NRC Resident Inspector. Notified R3DO (Dickson).


Power Reactor
Event Number: 46437
Facility: CRYSTAL RIVER
Region: 2     State: FL
Unit: [3] [] []
RX Type: [3] B&W-L-LP
NRC Notified By: EDDIE RIFFLE
HQ OPS Officer: HOWIE CROUCH
Notification Date: 11/24/2010
Notification Time: 17:43 [ET]
Event Date: 11/24/2010
Event Time: 15:50 [EST]
Last Update Date: 11/24/2010
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(xi) - OFFSITE NOTIFICATION
Person (Organization):
DANIEL RICH (R2DO)
Power Reactor Unit Info
Unit SCRAM Code RX Crit Initial PWR Initial RX Mode Current PWR Current RX Mode
3 N N 0 Refueling 0 Refueling
Event Text
OFFSITE NOTIFICATION DUE TO RELEASE OF AN OILY MIXTURE TO DISCHARGE CANAL

"During maintenance activities at Crystal River Unit 3, approximately 25 to 30 gallons of an oily water mixture was pumped from a manway/vault. A small amount of this mixture was inadvertently discharged to a storm drain that leads to the Crystal River Unit 3 outfall (discharge canal). There was a slight sheen observed at the outfall as approximately 1/2 cup of the mixture entered the outfall area. This is reportable under 40CFR110 due to a light sheen observed on the site discharge canal. Crystal River Environmental Specialists responded to the spill with a combination of sand bags, floating sorbent boom, as well as sorbent pads. After deployment of the sand bags, floating sorbent booms, and securing the pumping activities, the spill status was confirmed as ceased and contained. Notifications will be made to the Florida Department of Environmental Protection State Warning Point and the National Response Center. This is 4-hour reportable per 10 CFR 50.72(b)(2)(xi) as a situation related to protection of environment, for which government agencies will be notified."

The substance discharged appears to be some sort of motor oil. Prior to pumping, a sample of the liquid was analyzed and did not contain any radioactive nuclides. The licensee has notified the NRC Resident Inspector.