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Event Notification Report for August 20, 2014

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
08/19/2014 - 08/20/2014

** EVENT NUMBERS **


50380 50381

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Power Reactor Event Number: 50380
Facility: COLUMBIA GENERATING STATION
Region: 4 State: WA
Unit: [2] [ ] [ ]
RX Type: [2] GE-5
NRC Notified By: NICHOLAS RULLMAN
HQ OPS Officer: DANIEL MILLS
Notification Date: 08/19/2014
Notification Time: 14:14 [ET]
Event Date: 08/19/2014
Event Time: 07:33 [PDT]
Last Update Date: 08/19/2014
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
Person (Organization):
JAMES DRAKE (R4DO)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
2 N Y 47 Power Operation 47 Power Operation

Event Text

LOSS OF ASSESSMENT CAPABILITY

"This notification is being made due to a loss of emergency assessment capability in accordance with 10 CFR 50.72(b)(3)(xiii). At 0733 (PDT), on 08/19/2014, PRM-RE-18, Reactor Building Stack Monitor - Intermediate Range Detector, failed downscale. PRM-RE-1A and PRM-RE-1C, the Reactor Building Stack Monitor - low and high range detectors, both remain operable and fully functional. Compensatory measures are being implemented per plant procedures at this time."

The NRC Resident Inspector has been notified.

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Power Reactor Event Number: 50381
Facility: DAVIS BESSE
Region: 3 State: OH
Unit: [1] [ ] [ ]
RX Type: [1] B&W-R-LP
NRC Notified By: THOMAS COBBLEDICK
HQ OPS Officer: CHARLES TEAL
Notification Date: 08/19/2014
Notification Time: 14:29 [ET]
Event Date: 08/18/2014
Event Time: 19:25 [EDT]
Last Update Date: 08/19/2014
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(v)(C) - POT UNCNTRL RAD REL
50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
Person (Organization):
DAVE PASSEHL (R3DO)

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

SHIELD BUILDING BOUNDARY DOOR FAILED TO LATCH

"At 1925 EDT on 08/18/2014 an equipment failure prevented a boundary door to the Shield Building Negative Pressure Area to latch closed upon egress, thereby preventing fulfillment of the Station Emergency Ventilation System safety function. Necessary door repairs per normal station practices were completed at 1935 EDT to establish full safety system function.

"This event was previously considered not reportable. Subsequent review determined the event reportable. The NRC Resident has been notified of the event. The failure to meet the 8-hour reporting requirement has been entered into the Corrective Action Program."

The licensee will notify the State, Ottawa, and Lucas counties

Page Last Reviewed/Updated Wednesday, August 20, 2014
Wednesday, August 20, 2014