Event Notification Report for March 25, 2019
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
03/24/2019 - 03/25/2019
Agreement State
Event Number: 53960
Rep Org: NE DIV OF RADIOACTIVE MATERIALS
Licensee: FLINT HILLS RESOURCES
Region: 4
City: FAIRMONT State: NE
County:
License #: GL0693
Agreement: Y
Docket:
NRC Notified By: HOWARD SHUMAN
HQ OPS Officer: JOANNA BRIDGE
Licensee: FLINT HILLS RESOURCES
Region: 4
City: FAIRMONT State: NE
County:
License #: GL0693
Agreement: Y
Docket:
NRC Notified By: HOWARD SHUMAN
HQ OPS Officer: JOANNA BRIDGE
Notification Date: 03/26/2019
Notification Time: 16:28 [ET]
Event Date: 03/25/2019
Event Time: 00:00 [CDT]
Last Update Date: 03/26/2019
Notification Time: 16:28 [ET]
Event Date: 03/25/2019
Event Time: 00:00 [CDT]
Last Update Date: 03/26/2019
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
10 CFR Section:
AGREEMENT STATE
Person (Organization):
JASON KOZAL (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
ILTAB (EMAIL)
JASON KOZAL (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
ILTAB (EMAIL)
AGREEMENT STATE - LOST TRITIUM EXIT SIGNS
The following is a summary of information received from the State of Nebraska:
On March 26, 2019, the Nebraska Department of Radioactive Materials received a letter dated March 25, 2019, from the licensee (Flint Hills Resources) concerning the loss of two tritium exit signs, each with an activity of 17.51 Curies. Two H-3 exit signs were lost during recent construction of additional warehouse space on an existing building. One sign was over a personnel door on the wall demolished for the new space and one was on a personnel door proximal to the construction area.
NE Item Number: NE190002
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 is a summary of information received from the State of Nebraska:
On March 26, 2019, the Nebraska Department of Radioactive Materials received a letter dated March 25, 2019, from the licensee (Flint Hills Resources) concerning the loss of two tritium exit signs, each with an activity of 17.51 Curies. Two H-3 exit signs were lost during recent construction of additional warehouse space on an existing building. One sign was over a personnel door on the wall demolished for the new space and one was on a personnel door proximal to the construction area.
NE Item Number: NE190002
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
Power Reactor
Event Number: 53955
Facility: BRUNSWICK
Region: 2 State: NC
Unit: [1] [2] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: MIKE FIORINO
HQ OPS Officer: MARK ABRAMOVITZ
Region: 2 State: NC
Unit: [1] [2] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: MIKE FIORINO
HQ OPS Officer: MARK ABRAMOVITZ
Notification Date: 03/25/2019
Notification Time: 11:14 [ET]
Event Date: 03/25/2019
Event Time: 04:02 [EDT]
Last Update Date: 03/25/2019
Notification Time: 11:14 [ET]
Event Date: 03/25/2019
Event Time: 04:02 [EDT]
Last Update Date: 03/25/2019
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
10 CFR Section:
50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
Person (Organization):
JONATHAN MONTGOMERY (R2DO)
JONATHAN MONTGOMERY (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 | N | 0 | Cold Shutdown | 0 | Cold Shutdown |
AUTOMATIC START OF FOUR EMERGENCY DIESEL GENERATORS
"At 0402 Eastern Daylight Time (EDT) on March 25, 2019, an actuation of the four Emergency Diesel Generators (EDGs) occurred. At the time of the event, Unit 1 was in Mode 1 at approximately 100% power and Unit 2 was in Mode 4 at 0% power. Unit 2 was in the process of aligning the electrical distribution system to power the emergency buses via the Unit Auxiliary Transformer (UAT) in accordance with plant procedures. It was determined that a fault occurred on the power path between the 230 KV switchyard and the UAT. This caused a main generator differential lockout relay to actuate; thereby starting the EDGs. All emergency buses remained energized from offsite power via the Startup Auxiliary Transformer and, therefore, the EDGs did not tie to their respective buses. The EDGs responded per design to this event. This event is being reported in accordance with 10 CFR 50.72(b)(3)(iv)(A) as an event that results in valid actuation of the EDGs. Due to the shared configuration of the Brunswick electrical system, both Unit 1 and Unit 2 are affected.
"The Unit 2 main generator lockout was reset and the EDGs have been restored to standby condition. Troubleshooting activities to determine the cause of the fault are in progress.
"There was no impact on the health and safety of the public or plant personnel.
"The NRC Resident Inspector has been notified."
"At 0402 Eastern Daylight Time (EDT) on March 25, 2019, an actuation of the four Emergency Diesel Generators (EDGs) occurred. At the time of the event, Unit 1 was in Mode 1 at approximately 100% power and Unit 2 was in Mode 4 at 0% power. Unit 2 was in the process of aligning the electrical distribution system to power the emergency buses via the Unit Auxiliary Transformer (UAT) in accordance with plant procedures. It was determined that a fault occurred on the power path between the 230 KV switchyard and the UAT. This caused a main generator differential lockout relay to actuate; thereby starting the EDGs. All emergency buses remained energized from offsite power via the Startup Auxiliary Transformer and, therefore, the EDGs did not tie to their respective buses. The EDGs responded per design to this event. This event is being reported in accordance with 10 CFR 50.72(b)(3)(iv)(A) as an event that results in valid actuation of the EDGs. Due to the shared configuration of the Brunswick electrical system, both Unit 1 and Unit 2 are affected.
"The Unit 2 main generator lockout was reset and the EDGs have been restored to standby condition. Troubleshooting activities to determine the cause of the fault are in progress.
"There was no impact on the health and safety of the public or plant personnel.
"The NRC Resident Inspector has been notified."