Event Notification Report for April 27, 2017
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
04/26/2017 - 04/27/2017
Power Reactor
Event Number: 52818
Facility: HATCH
Region: 2 State: GA
Unit: [1] [2] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: KENNETH HUNTER
HQ OPS Officer: DONG HWA PARK
Region: 2 State: GA
Unit: [1] [2] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: KENNETH HUNTER
HQ OPS Officer: DONG HWA PARK
Notification Date: 06/22/2017
Notification Time: 09:32 [ET]
Event Date: 04/27/2017
Event Time: 00:29 [EDT]
Last Update Date: 06/22/2017
Notification Time: 09:32 [ET]
Event Date: 04/27/2017
Event Time: 00:29 [EDT]
Last Update Date: 06/22/2017
Emergency Class: NON EMERGENCY
10 CFR Section:
50.73(a)(1) - INVALID SPECIF SYSTEM ACTUATION
10 CFR Section:
50.73(a)(1) - INVALID SPECIF SYSTEM ACTUATION
Person (Organization):
REINALDO RODRIGUEZ (R2DO)
REINALDO RODRIGUEZ (R2DO)
| 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 |
INVALID SPECIFIED SYSTEM ACTUATION DUE TO FAILED RELAY
"On April 27, 2017 at 0029 EDT, Unit 2 received an invalid partial Group 2 isolation due to a failed relay (2D11-K80) on the auxiliary trip unit. Both of the U1 and U2 Standby Gas Treatment (SGT) trains started and the U2 Group II primary containment and all secondary containment inboard isolation valves closed. Also, the refuel floor isolation dampers closed, the reactor building supply and exhaust fans tripped, and the refueling floor supply and exhaust fans tripped.
"This event is reportable per 10 CFR 50.73(a)(2)(iv)(A) since the containment isolation and auto-start of SGT on both units was not part of a pre-planned sequence and the event resulted in the invalid actuation of general containment isolation valves in more than one system.
"All primary and secondary containment inboard isolation valves and SGT systems functioned successfully. The failed relay was replaced and the systems were restored to normal alignment.
"The licensee will notify the NRC Resident Inspector."
"On April 27, 2017 at 0029 EDT, Unit 2 received an invalid partial Group 2 isolation due to a failed relay (2D11-K80) on the auxiliary trip unit. Both of the U1 and U2 Standby Gas Treatment (SGT) trains started and the U2 Group II primary containment and all secondary containment inboard isolation valves closed. Also, the refuel floor isolation dampers closed, the reactor building supply and exhaust fans tripped, and the refueling floor supply and exhaust fans tripped.
"This event is reportable per 10 CFR 50.73(a)(2)(iv)(A) since the containment isolation and auto-start of SGT on both units was not part of a pre-planned sequence and the event resulted in the invalid actuation of general containment isolation valves in more than one system.
"All primary and secondary containment inboard isolation valves and SGT systems functioned successfully. The failed relay was replaced and the systems were restored to normal alignment.
"The licensee will notify the NRC Resident Inspector."
Agreement State
Event Number: 52712
Rep Org: TEXAS DEPT OF STATE HEALTH SERVICES
Licensee: BLANCHARD REFINING COMPANY LLC
Region: 4
City: TEXAS CITY State: TX
County:
License #: 06526
Agreement: Y
Docket:
NRC Notified By: IRENE CASARES
HQ OPS Officer: HOWIE CROUCH
Licensee: BLANCHARD REFINING COMPANY LLC
Region: 4
City: TEXAS CITY State: TX
County:
License #: 06526
Agreement: Y
Docket:
NRC Notified By: IRENE CASARES
HQ OPS Officer: HOWIE CROUCH
Notification Date: 04/27/2017
Notification Time: 12:58 [ET]
Event Date: 04/27/2017
Event Time: 00:00 [CDT]
Last Update Date: 04/27/2017
Notification Time: 12:58 [ET]
Event Date: 04/27/2017
Event Time: 00:00 [CDT]
Last Update Date: 04/27/2017
Emergency Class: NON EMERGENCY
10 CFR Section:
10 CFR Section:
Person (Organization):
MICHAEL HAY (R4DO)
NMSS_EVENTS_NOTIFIC (EMAI)
MICHAEL HAY (R4DO)
NMSS_EVENTS_NOTIFIC (EMAI)
AGREEMENT STATE REPORT - STUCK SHUTTER ON FIXED NUCLEAR GAUGE
The following information was received from the state of Texas via email:
"On April 27, 2017, the Agency [Texas Department of State Health Services] was notified by the radiation safety officer of a licensee that a fixed gauge was discovered with a stuck shutter. The gauge is a line level indicator on a hydrogen fluoride tank and was stuck in the normal operating position. The gauge is a Vega SHLG containing cesium-137, 300 milliCuries, serial number 321300. The gauge is scheduled for repair and an amendment to the license is in process to operate the gauge in the open position until repaired. There is no risk of exposure to an individual. Updates will be provided as acquired."
Texas Incident No.: I-9481
The following information was received from the state of Texas via email:
"On April 27, 2017, the Agency [Texas Department of State Health Services] was notified by the radiation safety officer of a licensee that a fixed gauge was discovered with a stuck shutter. The gauge is a line level indicator on a hydrogen fluoride tank and was stuck in the normal operating position. The gauge is a Vega SHLG containing cesium-137, 300 milliCuries, serial number 321300. The gauge is scheduled for repair and an amendment to the license is in process to operate the gauge in the open position until repaired. There is no risk of exposure to an individual. Updates will be provided as acquired."
Texas Incident No.: I-9481
Agreement State
Event Number: 52720
Rep Org: KENTUCKY DEPT OF RADIATION CONTROL
Licensee: LEXMARK INTERNATIONAL INC.
Region: 1
City: LEXINGTON State: KY
County:
License #: 201-072-56
Agreement: Y
Docket:
NRC Notified By: CHRISTOPHER KEFFER
HQ OPS Officer: VINCE KLCO
Licensee: LEXMARK INTERNATIONAL INC.
Region: 1
City: LEXINGTON State: KY
County:
License #: 201-072-56
Agreement: Y
Docket:
NRC Notified By: CHRISTOPHER KEFFER
HQ OPS Officer: VINCE KLCO
Notification Date: 05/01/2017
Notification Time: 11:30 [ET]
Event Date: 04/27/2017
Event Time: 15:00 [CDT]
Last Update Date: 05/01/2017
Notification Time: 11:30 [ET]
Event Date: 04/27/2017
Event Time: 15:00 [CDT]
Last Update Date: 05/01/2017
Emergency Class: NON EMERGENCY
10 CFR Section:
10 CFR Section:
Person (Organization):
JAMES DWYER (R1DO)
NMSS_EVENTS_NOTIFIC (EMAI)
ILTAB (EMAI)
JAMES DWYER (R1DO)
NMSS_EVENTS_NOTIFIC (EMAI)
ILTAB (EMAI)
AGREEMENT STATE REPORT - MISSING SOURCE
The following information was received from the Commonwealth of Kentucky via facsimile:
"KY RHB [Kentucky Radiation Health Branch] Inspector, Christopher Keffer, was performing a routine health and safety inspection of the licensee when the RSO [Radiation Safety Officer] discovered that a stored device was missing. According to the RSO, the laboratory where the device was stored was cleaned out the week before; it is currently believed that the device has been thrown away and is now in a landfill."
The sealed source identification number is NR-536-D-808-B associated with a Perkins Elmer Clarus Model 500. The source is a Ni-63, 15 microCurie source.
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
The following information was received from the Commonwealth of Kentucky via facsimile:
"KY RHB [Kentucky Radiation Health Branch] Inspector, Christopher Keffer, was performing a routine health and safety inspection of the licensee when the RSO [Radiation Safety Officer] discovered that a stored device was missing. According to the RSO, the laboratory where the device was stored was cleaned out the week before; it is currently believed that the device has been thrown away and is now in a landfill."
The sealed source identification number is NR-536-D-808-B associated with a Perkins Elmer Clarus Model 500. The source is a Ni-63, 15 microCurie source.
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