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Event Notification Report for October 3, 2006

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
10/02/2006 - 10/03/2006

** EVENT NUMBERS **


42786 42871

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General Information or Other Event Number: 42786
Rep Org: DEFENSE DISTRIBUTION CENTER
Licensee: DEFENSE DISTRIBUTION CENTER
Region: 1
City: NEW CANTERBURY State: PA
County:
License #: 37-30062-01
Agreement: N
Docket:
NRC Notified By: DAVID COLLINS
HQ OPS Officer: MARK ABRAMOVITZ
Notification Date: 08/18/2006
Notification Time: 15:25 [ET]
Event Date: 08/18/2006
Event Time: 14:00 [EDT]
Last Update Date: 10/02/2006
Emergency Class: NON EMERGENCY
10 CFR Section:
20.2201(a)(1)(i) - LOST/STOLEN LNM>1000X
Person (Organization):
RAYMOND LORSON (R1)
GREG MORELL (NMSS)

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

Event Text

TRITIUM SOURCES MISSING DURING ANNUAL INVENTORY BUT SUBSEQUENTLY FOUND

An inventory of the tritium sources at the Defense Logistics Agency in Aniston, AL was performed.

"Initial results of Annual Inventory indicates a loss of the following items:
4 ea NSN 1240001508886 Telescopic panoramic at 3.8 Curies each
5 ea NSN 1240001508890 Mount Telescope at 0.15 Curies each
2 ea NSN 1240003321780 Collimator at 10 Curies each
Causative research is currently being conducted and results will be reported in follow up letter to NRC. Total loss would equal 35.95 Curies of H3."

The last annual inventory was completed 10/11/2005.

* * * UPDATE RECEIVED FROM DAVID COLLINS TO JOE O'HARA AT 0955 ON 10/02/06 * * *

The Defense Distribution Center Depot has accounted for all items previously reported as being missing. The items were located in a proper radiological storage area. However, they were not located in the same area as the licensee had documented in their computer system. After performing a full inspection of the radiological storage area, the items were accounted for and properly documented in a report issued 9/28/06.

Notified R1DO(Krohn) and NMSS(Burgess)


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.

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Power Reactor Event Number: 42871
Facility: SURRY
Region: 2 State: VA
Unit: [1] [2] [ ]
RX Type: [1] W-3-LP,[2] W-3-LP
NRC Notified By: JAMES HOLLOWAY
HQ OPS Officer: JASON KOZAL
Notification Date: 10/02/2006
Notification Time: 17:29 [ET]
Event Date: 10/02/2006
Event Time: [EDT]
Last Update Date: 10/02/2006
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
Person (Organization):
DAVID AYRES (R2)

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 SIRENS INOPERABLE FOR PLANNED MAINTENANCE

"Surry Early Warning System (EWS) siren activation system was briefly inoperable from 14:26 hours to 16:28 hours on October 2, 2006, for antenna replacement preventive maintenance due to a degrading connector.

"This event is reportable in accordance with 10CFR50.72(b)(3)(xiii), any event that results in a major loss of offsite communications capability, (e.g., offsite notification system).

"This preventive maintenance was coordinated in advance with offsite agencies for compensatory measure purposes (backup route alerting within 45 minutes).

"Return to service testing has verified 68 of 68 sirens are operable (100 %). The current availability of the EWS no longer constitutes a major loss of off site communication capability pursuant to 10CFR50.72(b)(3)(xiii).

"Information related to the return to service of these sirens has been transmitted to the offsite agencies. This is the final report that will be issued relative to siren system restoration efforts following this preventive maintenance. Normal siren system status monitoring practices will remain in effect going forward."

The licensee notified the NRC Resident Inspector.

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