Alert

Due to a lapse in appropriations, the NRC has ceased normal operations. However, excepted and exempted activities necessary to maintain critical health and safety functions—as well as essential progress on designated critical activities, including those specified in Executive Order 14300—will continue, consistent with the OMB-Approved NRC Lapse Plan.

Event Notification Report for November 20, 2012

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
11/19/2012 - 11/20/2012

** EVENT NUMBERS **

48367

48498

48518

!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!
Power Reactor	Event Number: 48367
Facility: CALVERT CLIFFS Region: 1 State: MD Unit: [1] [ ] [ ] RX Type: [1] CE,[2] CE NRC Notified By: JOSEPH GIOFFRE HQ OPS Officer: DONG HWA PARK	Notification Date: 10/03/2012 Notification Time: 07:25 [ET] Event Date: 10/03/2012 Event Time: 00:10 [EDT] Last Update Date: 11/19/2012
Emergency Class: NON EMERGENCY 10 CFR Section: 50.72(b)(3)(ii)(B) - UNANALYZED CONDITION	Person (Organization): WAYNE SCHMIDT (R1DO)

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

UNANALYZED CONDITION DUE TO HIGH ENERGY LINE BREAK BARRIER BEING PARTIALLY OPEN

"At 0010 [EDT] on 10/3/12, it was determined that an unanalyzed condition existed for the switchgear rooms on Unit 1. A degraded condition of a high energy line break (HELB) barrier was created during security surveillance. A HELB barrier door for the 27' elevation switchgear room was partially opened for a 14 minute period and could have allowed steam from a HELB on the 27' elevation of the Turbine Building to potentially impact equipment in both the 27' and 45' elevation switchgear rooms because these rooms are connected by a common ventilation system. The switchgear rooms are not analyzed for a steam environment. The degree of the impact could not be readily determined, but could likely affect the safety related equipment in the switchgear rooms. At 0024 [EDT] on 10/3/12, the HELB barrier door for the 27' elevation switchgear room was closed and the barrier restored which eliminated the potential unanalyzed condition. An 8 hour report to the NRC is required under 10 CFR 50.72(b)(3)(ii)(B), 'Any event or condition that results in the nuclear power plant being in an unanalyzed condition that significantly degrades plant safety' since there was not a reasonable expectation that the switchgear room environment could support operation of safety related equipment with the 27' elevation switchgear room door partially open. Further analysis is underway."

The licensee has notified the NRC Resident Inspector.

* * * RETRACTION FROM CHARLES MORGAN TO HOWIE CROUCH AT 1241 EST ON 11/19/12 * * *

"Subsequent engineering analysis conducted for this condition demonstrated that having the roll-up door stuck open six inches would not, should a HELB occur in the vicinity of the 27' switchgear room roll-up door, result in conditions within both switchgear rooms that would challenge the design limits and which would render the Class 1E electrical busses inoperable. Therefore the unit was not in a degraded or unanalyzed condition.

"As a result this condition is not reportable under 50.72(b)(3)(ii)(B). Based on this information, Calvert Cliffs is retracting notification message EN #48367."

The licensee has notified the NRC Resident Inspector. Notified R1DO (Dwyer).

Agreement State	Event Number: 48498
Rep Org: MA RADIATION CONTROL PROGRAM Licensee: DANA-FARBER CANCER INSTITUTE Region: 1 City: BOSTON State: MA County: License #: 60-0037 Agreement: Y Docket: NRC Notified By: BRUCE PACKARD HQ OPS Officer: HOWIE CROUCH	Notification Date: 11/09/2012 Notification Time: 17:02 [ET] Event Date: 11/07/2012 Event Time: [EST] Last Update Date: 11/09/2012
Emergency Class: NON EMERGENCY 10 CFR Section: AGREEMENT STATE	Person (Organization): GLENN DENTEL (R1DO) FSME RESOURCE (EMAI)

Event Text

AGREEMENT STATE REPORT - DOSE TO EMBRYO/FETUS

The following information was obtained from the Commonwealth of Massachusetts via facsimile:

"A lung cancer patient [underwent] PET and CT [scans and received] a calculated dose of 2 Rem to [her] embryo. The patient was asked if she was pregnant and she replied no. The dose was calculated to be 8.8 mGy from CT and 11.5 mGy from PET."

The patient was notified.

Power Reactor	Event Number: 48518
Facility: SUMMER Region: 2 State: SC Unit: [1] [ ] [ ] RX Type: [1] W-3-LP,[2] W-AP1000,[3] W-AP1000 NRC Notified By: MICHAEL MOORE HQ OPS Officer: VINCE KLCO	Notification Date: 11/18/2012 Notification Time: 11:10 [ET] Event Date: 11/18/2012 Event Time: 11:30 [EST] Last Update Date: 11/19/2012
Emergency Class: NON EMERGENCY 10 CFR Section: 50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE	Person (Organization): MALCOLM WIDMANN (R2DO)

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

Event Text

LOSS OF ASSESSMENT CAPABILITY DUE TO INTEGRATED PLANT COMPUTER PLANNED MAINTENANCE

"On 11/18/2012 at approximately 1130 EST, the Summer Safety Parameter Display System (SPDS) and the Emergency Response Data System (ERDS) will be taken out of service for approximately 12 hours to support a planned maintenance on an inverter that feeds the station's Integrated Plant Computer System (lPCS). During this time frame. ERDS and SPDS will be unavailable. Should the need arise, plant status information will be communicated to the NRC using other available communication systems. SPDS and ERDS are expected to be restored on 11/18/2012 at 1800 EST. This event is reportable under 10 CFR 50.72(b)(3)(xiii).

"The NRC Resident Inspector has been notified."

* * * UPDATE FROM MICHAEL MOORE TO DONALD NORWOOD AT 1003 EST ON 11/19/2012 * * *

"On November 18, 2012, at approximately 1730, IPCS was returned to service. Completing this planned maintenance activity restored the VCSNS Safety Parameter Display System and the Emergency Response Data System (ERDS). ERDS was tested this morning, November 19, 2012, by VCSNS and the NRC ERDS Help Desk to verify system operability.

"The NRC Resident Inspector has been notified."

Notified R2DO (Widmann).

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