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Event Notification Report for June 26, 2013

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
06/25/2013 - 06/26/2013

** EVENT NUMBERS **


49124 49133 49148

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Agreement State Event Number: 49124
Rep Org: TEXAS DEPARTMENT OF HEALTH
Licensee: NDE SOLUTIONS LLC
Region: 4
City: KENEDY State: TX
County:
License #: 05879
Agreement: Y
Docket:
NRC Notified By: KAREN BLANCHARD
HQ OPS Officer: DONALD NORWOOD
Notification Date: 06/17/2013
Notification Time: 12:35 [ET]
Event Date: 06/15/2013
Event Time: [CDT]
Last Update Date: 06/17/2013
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
Person (Organization):
WAYNE WALKER (R4DO)
FSME EVENTS RESOURCE (EMAI)

Event Text

AGREEMENT STATE REPORT - SOURCE DISCONNECT

The following information was received via E-mail:

"On June 16, 2013, the licensee reported to the Agency [Texas Department of State Health Services] they had experienced a source disconnect on June 15, 2013. The radiography team cranked the Iridium-192 source out of the Delta 880 camera for the first shot of the day and then they were unable to retrieve the source back into the camera. The source retrieval was performed by authorized persons. From initial reports, using pocket dosimeters readings, the largest whole body dose received was 195 mrem. Dosimetry badges have been sent for processing. The licensee is investigating the cause of the disconnect and will send the equipment to the manufacturer/service company for evaluation. No member of the general public received any dose from this event. More information will be provided as it becomes available, per SA 300."

Texas Incident #: I 9092

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Agreement State Event Number: 49133
Rep Org: COLORADO DEPT OF HEALTH
Licensee: LIBERTYTOWN USA 2
Region: 4
City: MEADE State: CO
County:
License #: COLO. 1191-01
Agreement: Y
Docket:
NRC Notified By: MARK DATER
HQ OPS Officer: DONALD NORWOOD
Notification Date: 06/18/2013
Notification Time: 18:18 [ET]
Event Date: 06/18/2013
Event Time: [MDT]
Last Update Date: 06/18/2013
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
Person (Organization):
WAYNE WALKER (R4DO)
FSME EVENTS RESOURCE (EMAI)

Event Text

AGREEMENT STATE REPORT - SOURCE DISCONNECT EVENT

The following information was received via E-mail:

"On June 18, 2013, the Department [Colorado Department of Public Health and Environment] was notified by the Corporate RSO of Libertytown USA 2 (Colo. 1191-01), a radiography company, that they had experienced a source disconnect event earlier that day. The Corporate RSO reported that a crew had been performing radiographic operations in Meade, Colorado and the onsite radiographer was unable to retract the source following a shot. The radiographer secured the area and contacted the local Colorado RSO who responded to the site and took command of the situation. After consultation and assessment by phone with the Corporate RSO, the Colorado RSO was able to retract the source back into the exposure device. The camera was secured and taken out-of-service pending inspection, maintenance, or repair. The initial cause of the event is under investigation. The licensee is in the process of obtaining reports from personnel involved and will submit a final report to the Department within 30 days. The Corporate RSO reported an exposure of 3 mrem to the Colorado RSO and 10 mrem to the radiographer during the recovery operations. The site of the event was a remote location and no members of the public were exposed as a result of the source disconnect. The Department will investigate further, pending additional information from the licensee.

"Camera: Industrial Nuclear Company, Model: IR-100, Serial Number: 4138.

"Source: Industrial Nuclear Company, Model: 32, Serial Number: T994, Isotope: Iridium-192."

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Power Reactor Event Number: 49148
Facility: DIABLO CANYON
Region: 4 State: CA
Unit: [1] [ ] [ ]
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: DARRELL JOHNSON
HQ OPS Officer: DONALD NORWOOD
Notification Date: 06/26/2013
Notification Time: 01:59 [ET]
Event Date: 06/25/2013
Event Time: 21:58 [PDT]
Last Update Date: 06/26/2013
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(i) - PLANT S/D REQD BY TS
50.72(b)(3)(ii)(B) - UNANALYZED CONDITION
50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
Person (Organization):
GREG PICK (R4DO)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
1 N Y 100 Power Operation 95 Power Operation

Event Text

PLANT SHUTDOWN REQUIRED DUE TO RHR SYSTEM SOCKET WELD LEAK

"At 2158 PDT, plant personnel identified a through-wall leak in a Diablo Canyon Power Plant Unit 1 socket weld inside containment that provides a flow path to a relief valve that protects a common portion of both trains of the Residual heat Removal (RHR) system. The as-found condition did not comply with the requirements of equipment control guideline 7.6 and the ASME acceptance criteria. PG&E accordingly declared both Unit 1 trains of RHR inoperable and initiated plant shutdown at 2237 PDT in accordance with requirements of Technical Specification 3.0.3.

"PG&E will complete shutdown to Mode 4 and will perform repairs to restore compliance with ASME code requirements."

The licensee notified the NRC Resident Inspector.

Page Last Reviewed/Updated Wednesday, June 26, 2013
Wednesday, June 26, 2013