Event Notification Report for June 10, 2007

STOLEN NITON METAL ANALYZER

The licensee possessed a Niton Metal Analyzer (believed to be a Model XRF but not certain). The analyzer is used for scrap metal alloy analysis. The analyzer was inadvertently left in the company truck which was being used for personal business. The truck was broken into while parked at a hotel in Humble, Texas (Country Heart Inn and Suites) and the Niton Analyzer was stolen. The licensee did not know the source in the analyzer. Based on information found on the internet it is believed to be a 40millicurie Cadmium-109 source. The licensee plans to file a police report.

R4DO (Shannon) will ensure that the State of Texas is notified.

* * * UPDATE FROM DARREL WIEDEMAN TO JOE O'HARA AT 1308 ON 6/12/07 * * *

Mr. Wiedeman reports that the metal analyzer has been found abandoned in an empty field near Humble, Texas. The individuals who found the device notified the owner via the contact information on the device. The owner's representative is on the way from Indiana to Texas to take custody of the analyzer. Additionally, the device has a 30 millicurie Am-241source, not Cadmium -109, as previously reported.

Mr. Wiedeman notified Randy Erickson (R4 State Liaison) and State of Texas.

Notified R3DO(Phillips), R4DO(Hay), FSME(Morell), ILTAB(via email), and Mexico(via fax).

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.

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

HIGH PRESSURE CORE SPRAY DECLARED INOPERABLE DUE TO FAILED INVERTER

"At 2003 on 6/10/07, the division 3 Nuclear System Protection System (NSPS) inverter power supply failed for unknown reasons. As a result of this failure, the High Pressure Core Spray (HPCS) system has been declared inoperable. This is a failure of a single train safety system and is reportable under 10 CFR 50.72(b)(3)(v)(D). Troubleshooting has been initiated to determine the cause of this failure."

The licensee notified the NRC Resident Inspector.

* * * RETRACTION ON 07/6/07 AT 1639 EDT FROM TOM CHALMERS TO MARK ABRAMOVITZ * * *

"This event is being retracted. An evaluation was performed and it was determined that no loss of safety function occurred following the failure of the Division 3 NSPS Inverter. The investigation determined that a circuit board failed on the inverter causing a blown fuse. The inverter was found in the reverse transfer position and AC power was automatically transferred to its alternate source, supplying its Division 3 loads. The High Pressure Core Spray system remained fully capable of performing its safety function to start and inject under both LOOP and LOCA conditions."

The licensee will notify the NRC Resident Inspector.

Notified the R3DO (Lanksbury).