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Event Notification Report for December 1, 2008

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
11/28/2008 - 12/01/2008

** EVENT NUMBERS **


44683 44688 44689

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General Information or Other Event Number: 44683
Rep Org: CALIFORNIA RADIATION CONTROL PRGM
Licensee: UNIVERSITY OF CALIFORNIA AT BERKELEY
Region: 4
City: BERKELEY State: CA
County:
License #: 1333-01
Agreement: Y
Docket:
NRC Notified By: MARK GOTTLIEB
HQ OPS Officer: PETE SNYDER
Notification Date: 11/25/2008
Notification Time: 14:08 [ET]
Event Date: 11/21/2008
Event Time: [PST]
Last Update Date: 11/25/2008
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
Person (Organization):
CLAUDE JOHNSON (R4)
MICHELE BURGESS (FSME)

Event Text

AGREEMENT STATE REPORT - LEAKING ELECTRON CAPTURE SOURCE

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

"A leak test of a generally licensed 9.78 mCi Nickel-63 Electron Capture Source, Serial Number NH285 28.17, manufactured by QSA Global , Inc., indicated 0.0053 uCi of Nickel-63 contamination. The source was stored in room 20D of the Space Sciences Laboratory at the University of California at Berkeley (UCB). The source was taken out of service and repackaged until the investigation by UCB has been completed. A second wipe of the source was taken and was negative."

California 5010 Number (Date Notified): 112108

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Power Reactor Event Number: 44688
Facility: OYSTER CREEK
Region: 1 State: NJ
Unit: [1] [ ] [ ]
RX Type: [1] GE-2
NRC Notified By: CARL SUCHTING
HQ OPS Officer: HOWIE CROUCH
Notification Date: 11/28/2008
Notification Time: 23:04 [ET]
Event Date: 11/28/2008
Event Time: 21:01 [EST]
Last Update Date: 11/29/2008
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL
50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
50.72(b)(2)(xi) - OFFSITE NOTIFICATION
Person (Organization):
LAWRENCE DOERFLEIN (R1)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
1 A/R Y 98 Power Operation 0 Hot Shutdown

Event Text

AUTOMATIC REACTOR SCRAM DUE TO MAIN TRANSFORMER FAULT

"At 98% power, a reactor scram occurred due to a Main Transformer fault. The plant is currently stable in the Hot Shutdown Mode. Isolation Condensers initiated as part of this event are currently in Standby Mode. This event is reportable in accordance with 10CFR50.72(b)(2) and (b)(3) and the Station Reportability Manual section SAF 1.6 and SAF 1.7."

The cause of the transformer fault is unknown and under investigation. There was no fire or explosion associated with the fault. All rods inserted during the scram. As a result of the transient, one electromatic relief valve lifted and subsequently reseated. There were no other isolations or safety equipment actuations during the transient.

The station electrical system is in its normal shutdown lineup with offsite power available. Decay heat is being removed via the turbine bypass valves to the main condenser. Pressure is currently at 700 psi with water level being maintained at 160" via the main feed system.

The licensee has notified the NRC Resident Inspector and will be notifying the State of New Jersey.

* * * * UPDATE FROM CARL SUCHTING TO JOHN KNOKE AT 0017 EDT ON 11/29/08 * * * *

" Notification performed to NJDEP of fish mortality following a reactor scram. As of this report, one dead bluefish spotted and three distressed bluefish spotted."

Licensee has notified the NRC Resident Inspector. Notified R1DO (Doerflein).

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Power Reactor Event Number: 44689
Facility: COOPER
Region: 4 State: NE
Unit: [1] [ ] [ ]
RX Type: [1] GE-4
NRC Notified By: ROY GILES
HQ OPS Officer: JOHN KNOKE
Notification Date: 11/30/2008
Notification Time: 08:22 [ET]
Event Date: 11/30/2008
Event Time: 01:58 [CST]
Last Update Date: 11/30/2008
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
Person (Organization):
CLAUDE JOHNSON (R4)

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

ACCIDENT MITIGATION - CREFS INOPERABLE

"On 30 November 08 at 0158, the Control Room Emergency Filtration System (CREFS) was declared inoperable due to a degraded Control Room Envelope (CRE). A CRE boundary door was found to be stuck partially open. With this door not fully closed and latched, reasonable assurance that CREFS would fulfill its safety function could not be established.

"The CRE door is a support features for CREFS at CNS. This is a single train system and per 10CFR50.72(b)(3)(v)(D) an 8 hour report is required due to the fact that at the time of discovery this condition could have prevented the fulfillment of the safety function of an SSC [Structure, System & Components] that is required to mitigate the consequences of an accident.

"The door was returned to a fully closed and latched position at the time of discovery, and CREFS was returned to operable status. Administrative controls are in place to ensure the door closes and latches until repairs can be performed."

The licensee notified the NRC Resident Inspector.

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Thursday, March 29, 2012