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 May 22, 2012

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
05/21/2012 - 05/22/2012

** EVENT NUMBERS **

47918

47939

47940

Agreement State	Event Number: 47918
Rep Org: NE DIV OF RADIOACTIVE MATERIALS Licensee: ADAMS LAND AND CATTLE Region: 4 City: BROKEN BOW State: NE County: License #: GL0698 Agreement: Y Docket: NRC Notified By: TRUDY HILL HQ OPS Officer: DONG HWA PARK	Notification Date: 05/11/2012 Notification Time: 12:34 [ET] Event Date: 05/09/2012 Event Time: [CDT] Last Update Date: 05/11/2012
Emergency Class: NON EMERGENCY 10 CFR Section: AGREEMENT STATE	Person (Organization): JACK WHITTEN (R4DO) ANGELA MCINTOSH (FSME)

This material event contains a "Less than Cat 3" level of radioactive material.

Event Text

MISSING TRITIUM EXIT SIGN

The following report was received via email from the State of Nebraska Division of Radioactive Materials:

"Adams Land and Cattle reported that they have a missing [tritium] exit sign. The sign was purchased in January of 2007 from SRB Technologies. We do not have the serial number at this time.

"They discovered that it was missing when doing the annual inventory. The sign may have been broken several months ago and was likely disposed of in the regular trash. The trash is taken to the Custer County landfill. The general licensee is checking with the employee who disposed the sign and trying to find out additional details.

"We will report additional information once the general licensee has additional information.

"Source/Radioactive Material: SEALED SOURCE LUMINOUS
"Manufacturer: SRB TECHNOLOGIES INC
"Model Number: BX-10-WH
"Radionuclide: H-3
"[Activity]: 9.21 Ci, 340.77 GBq"

Incident Number: NE120001

THIS MATERIAL EVENT CONTAINS A "LESS THAN CAT 3" LEVEL OF RADIOACTIVE MATERIAL

Sources that are "Less than IAEA Category 3 sources," are either sources that are very unlikely to cause permanent injury to individuals or contain a very small amount of radioactive material that would not cause any permanent injury. Some of these sources, such as moisture density gauges or thickness gauges that are Category 4, the amount of unshielded radioactive material, if not safely managed or securely protected, could possibly - although it is unlikely - temporarily injure someone who handled it or were otherwise in contact with it, or who were close to it for a period of many weeks. For additional information go to http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf

This source is not amongst those sources or devices identified by the IAEA Code of Conduct for the Safety & Security of Radioactive Sources to be of concern from a radiological standpoint. Therefore is it being categorized as a less than Category 3 source

Power Reactor	Event Number: 47939
Facility: INDIAN POINT Region: 1 State: NY Unit: [2] [ ] [ ] RX Type: [2] W-4-LP,[3] W-4-LP NRC Notified By: JAVIER HERRERA HQ OPS Officer: DONG HWA PARK	Notification Date: 05/21/2012 Notification Time: 16:44 [ET] Event Date: 05/21/2012 Event Time: 15:30 [EDT] Last Update Date: 05/21/2012
Emergency Class: NON EMERGENCY 10 CFR Section: 50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE	Person (Organization): JAMES TRAPP (R1DO)

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

Event Text

TSC TEMPORARILY OUT OF SERVICE FOR PLANNED MAINTENANCE

"The Technical Support Center (TSC) fire protection sprinkler system was isolated and tagged out to perform planned maintenance. In conjunction with the sprinkler system being isolated, the charcoal filtered fan unit for the TSC ventilation was isolated. This prevents placing the TSC ventilation system in 'incident' mode; that is, the air cannot be re-directed through the charcoal filter in an event requiring the TSC atmosphere to be filtered due to an on-site release. The TSC ventilation system remains in service providing proper temperature control to maintain the facility habitable during normal operation; however with the 'incident' mode being unavailable, it may not remain habitable during all postulated scenarios and is, therefore, considered non-functional."

The licensee notified the NRC Resident Inspector and will notify the Public Service Commission.

Power Reactor	Event Number: 47940
Facility: RIVER BEND Region: 4 State: LA Unit: [1] [ ] [ ] RX Type: [1] GE-6 NRC Notified By: GARY HUSTON HQ OPS Officer: DONG HWA PARK	Notification Date: 05/21/2012 Notification Time: 18:35 [ET] Event Date: 05/21/2012 Event Time: 14:52 [CDT] Last Update Date: 05/21/2012
Emergency Class: NON EMERGENCY 10 CFR Section: 50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL	Person (Organization): BLAIR SPITZBERG (R4DO) PATRICK HILAND (NRR) JEFFERY GRANT (IRD)

Unit	SCRAM Code	RX CRIT	Initial PWR	Initial RX Mode	Current PWR	Current RX Mode
1	A/R	Y	100	Power Operation	0	Hot Shutdown

Event Text

AUTOMATIC REACTOR SCRAM RESULTING FROM A LOW CONDENSER VACUUM-TURBINE TRIP

"At 1452 CDT on 5/21/2012 with the reactor at 100% power, River Bend Station experienced a reactor scram resulting from an RPS actuation. Following the scram, reactor water level briefly lowered below level 3. The reactor is stable with pressure and temperature being controlled by the feed water system and main steam bypass valves, respectfully. The cause of the scram was due to a turbine trip/low condenser vacuum. The low vacuum condition resulted from a loss of non-safety related 4160V switchgear that powers two of four circulating water pumps.

"A suspected spurious Division II isolation of Reactor Core Isolation Cooling (RCIC) was observed. Restoration of RCIC to standby is in progress.

"A report of a fire in a manhole was received shortly after the scram . Fire Brigade was dispatched and noted a small active fire in a cable tray. The fire was extinguished with fire extinguishers. Power cables are routed through this manhole.

"The plant is conducting causal investigations to fully understand the cause of the turbine trip. As information becomes available, River Bend Station will provide additional information."

All rods are inserted, and the plant is in a normal shutdown electrical lineup with the exception of NNS-Switchgear 2A being deenergized. Offsite assistance was not required to extinguish the fire.

The licensee notified the NRC Resident Inspector.

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