United States Nuclear Regulatory Commission - Protecting People and the Environment

Event Notification Report for February 13, 2012

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
02/10/2012 - 02/13/2012

** EVENT NUMBERS **


47647 47657 47658 47660

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Agreement State Event Number: 47647
Rep Org: CALIFORNIA RADIATION CONTROL PRGM
Licensee: NATIONAL ANALYTICAL INSTRUMENTS
Region: 4
City: SAN RAFAEL State: CA
County:
License #:
Agreement: Y
Docket:
NRC Notified By: KENT PRENDERGAST
HQ OPS Officer: CHARLES TEAL
Notification Date: 02/08/2012
Notification Time: 13:45 [ET]
Event Date: 01/24/2012
Event Time: [PST]
Last Update Date: 02/08/2012
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
Person (Organization):
VIVIAN CAMPBELL (R4DO)
PAUL MICHALAK (FSME)

Event Text

AGREEMENT STATE REPORT - CONTAMINATED VARIAN DETECTOR

The following was received from the State of California via email:

"On January 24, 2012, RHB was informed by the owner of National Analytical Instruments [...] that he had purchased a Varian UV-VIS detector from Golndustry Dovebid back in 06/11/2008 and he subsequently learned this device was contaminated with C-14.

"The purchase invoice ID is # 2169450, and the following equipment was indicated on the invoice: Varian ProStar 320, s/n 1550, Lot # 143568. The equipment has a Pfizer's asset number 16468. According to [the owner], the equipment came from Pfizer in Ann Arbor, Michigan, and that this laboratory has been owned by the University of Michigan since 2007.

"On January 24, 2012, the RHB inspector confirmed contamination of the Varian UV-VIS detector. A Thermo Scientific, RadEye B20-ER, s/n 0242 GM, survey meter was used to check for contamination, and contamination was observed with the maximum reading of 25 CPS. On January 26, 2012, in the presence of RHB inspector, the Pfizer San Francisco RSO took surveys, and also confirmed contamination of the Varian UV-VIS detector. The Pfizer RSO also took possession of the contaminated equipment."

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Power Reactor Event Number: 47657
Facility: SAINT LUCIE
Region: 2 State: FL
Unit: [1] [ ] [ ]
RX Type: [1] CE,[2] CE
NRC Notified By: REESE KILIAN
HQ OPS Officer: VINCE KLCO
Notification Date: 02/10/2012
Notification Time: 07:31 [ET]
Event Date: 02/10/2012
Event Time: 01:34 [EST]
Last Update Date: 02/10/2012
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
Person (Organization):
STEVEN VIAS (R2DO)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
1 N N 0 Cold Shutdown 0 Cold Shutdown

Event Text

MAINTENANCE ACTIVITIES CAUSE AN INADVERTENT EMERGENCY DIESEL GENERATOR START

"On February 10, 2012, with Unit 1 in Mode 5, while performing scheduled maintenance, a technician inadvertently made contact with a component that caused an undervoltage condition on an essential bus, resulting in the automatic start and loading of the 1B Emergency Diesel Generator (EDG). Prior to the event the 1B EDG was inoperable and not required by Technical Specifications; however, the 1B EDG was available. All equipment responded as expected. Currently maintaining the plant in Mode 5. Decay heat removal is being supplied by the 1A Shutdown Cooling train and was never interrupted. There was no impact on the Shutdown Safety Assessment.

"Unit 2 was unaffected and remains in Mode 1 at 100% power.

"This event is reportable pursuant to 10CFR 50.72(b)(3)(iv(A)."

The licensee notified the NRC Resident Inspector.

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Power Reactor Event Number: 47658
Facility: FORT CALHOUN
Region: 4 State: NE
Unit: [1] [ ] [ ]
RX Type: (1) CE
NRC Notified By: ERICK MATZKE
HQ OPS Officer: JOE O'HARA
Notification Date: 02/10/2012
Notification Time: 18:54 [ET]
Event Date: 02/10/2012
Event Time: [CST]
Last Update Date: 02/10/2012
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(ii)(B) - UNANALYZED CONDITION
Person (Organization):
VIVIAN CAMPBELL (R4DO)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
1 N N 0 Cold Shutdown 0 Cold Shutdown

Event Text

UNANALYZED CONDITION - GUIDANCE NOT ADEQUATE TO MITIGATE A DESIGN BASIS FLOOD

"During a review of the station's procedures for responding to external flooding conditions, it was determined that the guidance is not adequate to mitigate a design basis flood event (1014 feet mean sea level [msl]).

"Compensatory actions have been identified and are being implemented. Additional corrective actions are being evaluated.

"The plant is currently in Mode 5, Cold Shutdown, with a river level of 986 feet 2 inches msl with no predictions for river level to pose a threat to safety related components."

NRC inspectors identified procedural inadequacies relating to the mitigation of flooding. The licensee is addressing the procedural inadequacies.

The NRC Resident Inspector has been notified.

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Power Reactor Event Number: 47660
Facility: SEQUOYAH
Region: 2 State: TN
Unit: [1] [2] [ ]
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: TIM REED
HQ OPS Officer: HOWIE CROUCH
Notification Date: 02/12/2012
Notification Time: 09:26 [ET]
Event Date: 02/12/2012
Event Time: 08:34 [EST]
Last Update Date: 02/12/2012
Emergency Class: UNUSUAL EVENT
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED
Person (Organization):
JOSELITO CALLE (R2DO)
VICTOR MCREE (R2RA)
BOB BOGER (NRR)
JASON KOZAL (IRD)
TAB BEACH (DHS)
DWIGHT FULLER (FEMA)
JEANNE BERGER (NICC)
MICHELE EVANS (NRR)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
1 N Y 100 Power Operation 100 Power Operation
2 N Y 100 Power Operation 100 Power Operation

Event Text

UNUSUAL EVENT DUE TO ELECTRICAL FAULT IN 161 KV SWITCHYARD

"At 0756 [EST] on 2/12/12, an electrical event occurred in the 161 kV switchyard that resulted in bus differential relay operating, and opening all PCBs [Protective Circuit Breakers] within 161 kV bus 2-2. Shortly after, a call was received from site security regarding an explosion in the switchyard.

"At 0820, a report was received that visible damage was present on an insulator between a PCB and a Motor Operated Disconnect (MOD) in the 161 kV switchyard, which is where the fault occurred. Follow up reports indicated an oil leak from a current transformer. Two other PCBs were identified to have visible damage. After the event, while opening MODS for PCBs that tripped open, the 'A' phase for one MOD did not open.

"No safety related equipment required to establish or maintain safe shutdown was affected. All the Diesel Generators remain in operable standby conditions.

"Unit 1 remained steady at 100% with no transients.

"Unit 2 had a 2B Condenser Circ Water pump trip off. Crew responded to the pump trip and Unit 2 remains at 100%.

"One offsite power source is inoperable and second offsite power source has been verified operable. Grid status is Yellow."

There were no personnel injuries reported due to the fault and resulting explosion. The loss of the offsite power source resulted in the licensee entering a 72-hr. LCO. The licensee is investigating both the cause of loss of offsite power and the circulating water pump trip.

The licensee has notified the State of Tennessee and the NRC Resident Inspector.

* * * UPDATE FROM KEVIN WILKES TO HOWIE CROUCH AT 1056 EST ON 2/12/12 * * *

At 1019 EST, the licensee terminated their Notification of Unusual Event. The basis for termination was that the fault was cleared and the conditions for EAL entry no longer exists.

The licensee has made state and local notifications and has notified the NRC Resident Inspector.

Notified R2DO (Calle), IRD (Kozal), NRR (Evans), DHS (Beach), FEMA (Fuller), and NICC (Berger)

Page Last Reviewed/Updated Thursday, March 29, 2012
Thursday, March 29, 2012