Event Notification Report for June 25, 2013
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
06/24/2013 - 06/25/2013
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
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
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 50.72(b)(2)(xi) - OFFSITE NOTIFICATION
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 50.72(b)(2)(xi) - OFFSITE NOTIFICATION
Person (Organization):
GREG PICK (R4DO)
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 |
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.
* * * UPDATE AT 1303 EDT ON 6/26/13 FROM WESLEY FIANT TO PETE SNYDER * * *
"Pacific Gas and Electric Company is submitting an update based on a press release issued at 0915 PDT detailing the above information to local television, newspaper, and radio media outlets. San Luis Obispo County and State of California Offices of Emergency Services have already been notified."
The licensee notified the NRC Resident Inspector. Notified R4DO (Pick).
"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.
* * * UPDATE AT 1303 EDT ON 6/26/13 FROM WESLEY FIANT TO PETE SNYDER * * *
"Pacific Gas and Electric Company is submitting an update based on a press release issued at 0915 PDT detailing the above information to local television, newspaper, and radio media outlets. San Luis Obispo County and State of California Offices of Emergency Services have already been notified."
The licensee notified the NRC Resident Inspector. Notified R4DO (Pick).
Agreement State
Event Number: 49360
Rep Org: NE DIV OF RADIOACTIVE MATERIALS
Licensee: B & J PARTNERSHIP
Region: 4
City: LINCOLN State: NE
County:
License #: GL0747
Agreement: Y
Docket:
NRC Notified By: TRUDY HILL
HQ OPS Officer: CHARLES TEAL
Licensee: B & J PARTNERSHIP
Region: 4
City: LINCOLN State: NE
County:
License #: GL0747
Agreement: Y
Docket:
NRC Notified By: TRUDY HILL
HQ OPS Officer: CHARLES TEAL
Notification Date: 09/19/2013
Notification Time: 14:56 [ET]
Event Date: 06/25/2013
Event Time: 00:00 [CDT]
Last Update Date: 09/19/2013
Notification Time: 14:56 [ET]
Event Date: 06/25/2013
Event Time: 00:00 [CDT]
Last Update Date: 09/19/2013
Emergency Class: NON EMERGENCY
10 CFR Section:
10 CFR Section:
Person (Organization):
RICK DEESE (R4DO)
FSME EVENT RESOURCE (EMAI)
DENNIS ALLSTON (ILTA)
RICK DEESE (R4DO)
FSME EVENT RESOURCE (EMAI)
DENNIS ALLSTON (ILTA)
AGREEMENT STATE REPORT - LOST TRITIUM EXIT SIGNS
The following was received from the State of Nebraska via facsimile:
"B & J Partnership purchased two Isolite model SLX60 exit signs with 6.2 curies of H3 in each sign on December 8, 2011. On September 19, 2013 the Department [Nebraska Department of Health and Human Services] was notified that the General Licensee did not know where the exit signs were after an extensive search."
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 MATERIAL EVENT CONTAINS A "NOT RECORDED" LEVEL OF RADIOACTIVE MATERIAL
The following was received from the State of Nebraska via facsimile:
"B & J Partnership purchased two Isolite model SLX60 exit signs with 6.2 curies of H3 in each sign on December 8, 2011. On September 19, 2013 the Department [Nebraska Department of Health and Human Services] was notified that the General Licensee did not know where the exit signs were after an extensive search."
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 MATERIAL EVENT CONTAINS A "NOT RECORDED" LEVEL OF RADIOACTIVE MATERIAL