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Event Notification Report for August 22, 2017

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
08/21/2017 - 08/22/2017

** EVENT NUMBERS **


52900 52902 52919

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!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!
Non-Agreement State Event Number: 52900
Rep Org: NIST
Licensee: NIST
Region: 1
City: GAITHERSBURG State: MD
County:
License #: SNM-362
Agreement: Y
Docket:
NRC Notified By: MANUEL MEJIAS
HQ OPS Officer: JEFF HERRERA
Notification Date: 08/14/2017
Notification Time: 14:54 [ET]
Event Date: 08/14/2017
Event Time: 14:54 [EDT]
Last Update Date: 08/16/2017
Emergency Class: NON EMERGENCY
10 CFR Section:
20.2201(a)(1)(i) - LOST/STOLEN LNM>1000X
Person (Organization):
HAROLD GRAY (R1DO)
NMSS_EVENTS_NOTIFICA (EMAI)
ILTAB (EMAI)

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

Event Text

MATERIAL IDENTIFIED LOST AFTER INVENTORY

The NIST (National Institute of Standards and Technology) determined that 24.9 microCuries of Cf-252 is being considered lost after performing an examination of inventory records. The missing material was identified during a leak test conducted on Wednesday August, 9, 2017. After identification of the missing material, NIST performed a physical inspection of all laboratories and examined physical inventory records. NIST has identified that there is a potential for this material to have been shipped to the Department of Energy and is still awaiting a response to verify that information.

NIST has performed a courtesy notification to the NRC R1 (Ullrich) and PM (Naquin) regarding this incident.

* * * RETRACTION AT 1631 EDT ON 8/16/2017 FROM MANUEL MEJIAS TO MARK ABRAMOVITZ * * *

"The purpose of this communication is to provide additional details surrounding the circumstances that have led to location of the Cf-252 source reported as missing under 10CFR20.2201(a)(i) at 14:54EDT on 8/14/2017. A call to the Ops Center was made today at 16:31EDT. The purpose of the call was to retract Event #52900 after successfully locating the source with NIST unique identifier number RS75-0086 (known by the Department of Energy as NS-86). The source was located inside a restricted area, the same room where the empty storage container was located.

"After reporting event #52900, at my direction as Radiation Safety Officer and with the support of NIST Senior Management, multiple efforts were started to investigate the probable disposition of the source (also as directed by 10CFR20.2201(b)(iii)). During those efforts, all records for shipments of Cf-252 were reviewed and colleagues at the DOE were contacted to exhaust the possibility that the material had been transferred out of NIST. Having no record of the source departing the facility, a new round of radiological surveys was started of the restricted facilities where the source had been previously authorized. After removal of all other neutron-emitting shielding containers from the immediate area, a residual field of neutron radiation was detected. This seemed indicative of the presence of a source. At this time it was observed that a radioactive source was outside of the storage containers. This source is/was of very small dimensions [approximately one inch in diameter]. The source matched the description and nearby was found the hazards information tag that corresponded to RS#75-0086.

"Given that the source was always in a restricted area with low-occupancy, we have determined that no hazards to individuals have resulted from this source misplacement."

Notified ILTAB (Ahern), R1DO (Gray), and NMSS Events Resource (via e-mail).


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

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!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!
Non-Agreement State Event Number: 52902
Rep Org: MICRON TECHNOLOGY, INC.
Licensee: MICRON TECHNOLOGY, INC
Region: 4
City: BOISE State: ID
County:
License #: GL
Agreement: N
Docket:
NRC Notified By: MARK FADEL
HQ OPS Officer: JEFF HERRERA
Notification Date: 08/14/2017
Notification Time: 15:30 [ET]
Event Date: 08/14/2017
Event Time: [MDT]
Last Update Date: 08/15/2017
Emergency Class: NON EMERGENCY
10 CFR Section:
20.2201(a)(1)(i) - LOST/STOLEN LNM>1000X
Person (Organization):
THOMAS FARNHOLTZ (R4DO)
ILTAB (EMAI)
NMSS_EVENTS_NOTIFICA (EMAI)
CNSC (CANADA) (FAX)

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

Event Text

TWO NUCLEOSTAT IONIZER BARS IDENTIFIED MISSING

Two NRD Nucleostat Ionizer Bars were determined to be missing after a search of metal recycling, potential other locations, and an inventory. The two NRD Nucleostat Ionizer Bars were identified to be missing from a shipment that was received on July 31, 2017. This shipment contained one of the three expected NRD Nucleostat Ionizer Bars. The licensee stated that the area where the cardboard boxes are broken down and stored still remains to be searched. The licensee stated that the local metal waste disposal facility was contacted regarding the event and will be contacting the local landfill regarding the issue.

Device Information:
NRG Nucleostat Ionizer Bars
Part Number: P-2001-006
Serial Numbers: A2LA345 and A2LA347
Activity: 14.06 milliCuries of Po-210

* * * RETRACTION AT 1247 EDT ON 08/15/17 FROM ASHLEY KUNZ TO JEFF HERRERA * * *

At 0900 MST on 8/15/2017 the two devices were found intact. A team of Emergency response technicians and site services janitorial members searched the remaining area containing broken down cardboard boxes. The two devices were placed into a locked area pending review by the manufacturer prior to being placed into use. Because the devices were found intact, this event is being retracted.

Notified the R4DO(Farnholtz), NMSS Events, ILTAB and CNSC (via email).

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

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Power Reactor Event Number: 52919
Facility: BYRON
Region: 3 State: IL
Unit: [1] [2] [ ]
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: ED SMITH
HQ OPS Officer: BETHANY CECERE
Notification Date: 08/21/2017
Notification Time: 05:30 [ET]
Event Date: 08/20/2017
Event Time: 21:08 [CDT]
Last Update Date: 08/21/2017
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

LOSS OF EMERGENCY ASSESSMENT CAPABILITY DUE TO NON-FUNCTIONAL TSC VENTILATION

"On August 20, 2017 at 2108 hours CDT, Byron Station Technical Support Center (TSC) ventilation system supply fan (0VV23C) was identified as non-functional. This failure affects the ability of the TSC ventilation system to maintain adequate radiological habitability in the event of an emergency with an airborne radiological release. All other capabilities of the TSC are unaffected by this emergent condition. Currently troubleshooting/investigation is being performed. This condition is considered a major loss of emergency assessment capability and is reportable under 10CFR50.72(b)(3)(xiii). If an emergency is declared requiring TSC activation during this period, the TSC will be staffed and activated using existing emergency planning procedures. If the TSC becomes uninhabitable, the Station Emergency Director will relocate the TSC staff to an alternate TSC location in accordance with applicable procedures.

"This notification is being made in accordance with 10CFR50.72(b)(3)(xiii) due to the potential loss of an emergency response facility because of the unavailability of the ventilation system. An update will be provided once the TSC ventilation has been restored to normal operation.

"The NRC Resident Inspector has been notified."

Page Last Reviewed/Updated Tuesday, August 22, 2017
Tuesday, August 22, 2017