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Event Notification Report for July 3, 2014

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
07/02/2014 - 07/03/2014

** EVENT NUMBERS **


50247 50250

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Power Reactor Event Number: 50247
Facility: BRAIDWOOD
Region: 3 State: IL
Unit: [1] [2] [ ]
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: KEVIN MORES
HQ OPS Officer: JOHN SHOEMAKER
Notification Date: 07/01/2014
Notification Time: 12:14 [ET]
Event Date: 07/01/2014
Event Time: 07:15 [CDT]
Last Update Date: 07/02/2014
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
Person (Organization):
AARON MCCRAW (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
2 N Y 100 Power Operation 100 Power Operation

Event Text

OFFSITE ALERT AND NOTIFICATION SYSTEM FAILURE

"At approximately 0715 (CDT) on 7/1/2014, during the daily morning test, Braidwood Generating Station experienced Offsite Alert and Notification System (ANS) failure of sirens BD10 and BD13 due to a loss of power to the sirens. Loss of power to the sirens was due to the adverse weather conditions experienced on the evening of 6/30/2014. Siren BD10 provides coverage for 20% of Braidwood's Emergency Planning Zone (EPZ) population and siren BD13 provides coverage for 14.1% of the Braidwood EPZ population.

"This event is being reported in accordance with 10CFR50.72(b)(3)(viii) for 'any event that results in a major loss of emergency assessment capability, offsite response capability, or offsite communications capability (e.g., significant portion of control room indication, Emergency Notification System, or offsite notification system).' The failure of the sirens resulted in the loss of the capability to alert a large segment of the population in the EPZ (~34%) for more than 1 hour. Per NEI 13-01, Rev 0, a large segment of the population in the EPZ should be taken to mean
approximately 25% of the total EPZ population.

"Immediate actions taken included placing a portable generator online to restore siren BD10 at 1015 CDT on 7/1/2014. ComEd is currently in the area attempting to restore normal power. Proposed long term corrective actions including an upgrade to the sirens to contain a battery backup are being evaluated.

"The licensee has notified the NRC Resident Inspector. The county emergency managers (for Will County - [for siren] BD10 and Grundy County - [for siren] BD13) are aware of the siren outage and the requirements to initiate mobile route alerting (FEMA approved backup) if required."

* * * UPDATE FROM MURTAZA ABBAS TO DANIEL MILLS AT 1756 EDT ON 07/02/2014 * * *

"Siren BD10 was restored to functional on 7/1/2014 at 1130 CDT.
"Siren BD13 was restored to functional on 7/2/2014 at 1145 CDT.

"The NRC Resident Inspector has been notified of this ENS update."

Notified R3DO (McCraw)

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Power Reactor Event Number: 50250
Facility: INDIAN POINT
Region: 1 State: NY
Unit: [ ] [3] [ ]
RX Type: [2] W-4-LP,[3] W-4-LP
NRC Notified By: JOHN DIGNAM
HQ OPS Officer: DANIEL MILLS
Notification Date: 07/02/2014
Notification Time: 14:49 [ET]
Event Date: 07/01/2014
Event Time: 15:00 [EDT]
Last Update Date: 07/02/2014
Emergency Class: NON EMERGENCY
10 CFR Section:
70.50(b)(2) - SAFETY EQUIPMENT FAILURE
Person (Organization):
JAMES NOGGLE (R1DO)
JACK GUTTMANN (NMSS)

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

FAILURE OF AIR OPERATED SOURCE CALIBRATOR

"On July 1, 2014, at approximately 1500 EDT, as a result of an investigation into a report that the electronics associated with the air operated source controller of a J. L. Shepherd Model 149 Neutron Calibrator was not working properly, it was concluded that the electronics for the air operated source controller had failed. The failure would have allowed the source to be withdrawn without the electronic circuit being energized. The original source contained 8.5 Ci of Pu-Be. The calibrator is designed to expose a neutron source on a signal from a control circuit using air to withdraw the source. In this event, source withdrawal was initiated when air was aligned without the control circuit being energized; the air was immediately isolated preventing the source from being withdrawn. The calibrator has been removed from service due to the control circuit failure. The source is in the safe position, tagged and locked with the air line disabled. This failure did not result in any personnel exposure.

"This is reportable under 10 CFR 70.50(b)(2) since the circuit is required by design to be operable when the calibrator is used. The cause of the failure has not been determined at this time.

"The affected calibrator is not part of any installed plant equipment and has no impact on plant operation."

The licensee has notified the NRC Resident Inspector.

The licensee will notify the New York Public Service Commission.

Page Last Reviewed/Updated Thursday, July 03, 2014
Thursday, July 03, 2014