Event Notification Report for November 22, 2024
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
11/21/2024 - 11/22/2024
Power Reactor
Event Number: 57438
Facility: Watts Bar
Region: 2 State: TN
Unit: [2] [] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: Tony Pate
HQ OPS Officer: Jordan Wingate
Region: 2 State: TN
Unit: [2] [] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: Tony Pate
HQ OPS Officer: Jordan Wingate
Notification Date: 11/23/2024
Notification Time: 02:42 [ET]
Event Date: 11/22/2024
Event Time: 19:37 [EST]
Last Update Date: 11/23/2024
Notification Time: 02:42 [ET]
Event Date: 11/22/2024
Event Time: 19:37 [EST]
Last Update Date: 11/23/2024
Emergency Class: Non Emergency
10 CFR Section:
50.72(b)(3)(v)(D) - Accident Mitigation
10 CFR Section:
50.72(b)(3)(v)(D) - Accident Mitigation
Person (Organization):
Suber, Gregory (R2DO)
Suber, Gregory (R2DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | N | Y | 100 | Power Operation | 100 | Power Operation |
CONTROL ROOM EMERGENCY AIR TEMPERATURE CONTROL SYSTEM INOPERABLE
The following information was provided by the licensee via phone or email:
"At 1937 EST on 11/22/2024, it was discovered that both trains of the control room emergency air temperature control system (CREATCS) were simultaneously inoperable; therefore, this condition is being reported as an eight-hour, non-emergency notification per 10 CFR 50.72(b)(3)(v).
"There was no impact on the health and safety of the public or plant personnel. The NRC resident inspector has been notified."
The following additional information was obtained from the licensee in accordance with headquarters operations officers report guidance:
Technical specification 3.7.11 conditions A and C were entered as a result of this event. The 'B' train of CREATCS was restored at 0130 EST on 11/23/24 and the plant exited condition C. The 'A' train remained out of service at the time of notification.
Although CREATCS is a common system for both Units 1 and 2, Unit 1 was defueled and outside the mode of applicability during the timeframe of this event.
The following information was provided by the licensee via phone or email:
"At 1937 EST on 11/22/2024, it was discovered that both trains of the control room emergency air temperature control system (CREATCS) were simultaneously inoperable; therefore, this condition is being reported as an eight-hour, non-emergency notification per 10 CFR 50.72(b)(3)(v).
"There was no impact on the health and safety of the public or plant personnel. The NRC resident inspector has been notified."
The following additional information was obtained from the licensee in accordance with headquarters operations officers report guidance:
Technical specification 3.7.11 conditions A and C were entered as a result of this event. The 'B' train of CREATCS was restored at 0130 EST on 11/23/24 and the plant exited condition C. The 'A' train remained out of service at the time of notification.
Although CREATCS is a common system for both Units 1 and 2, Unit 1 was defueled and outside the mode of applicability during the timeframe of this event.
Agreement State
Event Number: 57443
Rep Org: California Radiation Control Prgm
Licensee: Ikea
Region: 4
City: San Diego State: CA
County:
License #:
Agreement: Y
Docket:
NRC Notified By: Robert Greger
HQ OPS Officer: Ian Howard
Licensee: Ikea
Region: 4
City: San Diego State: CA
County:
License #:
Agreement: Y
Docket:
NRC Notified By: Robert Greger
HQ OPS Officer: Ian Howard
Notification Date: 11/25/2024
Notification Time: 20:00 [ET]
Event Date: 11/22/2024
Event Time: 00:00 [PST]
Last Update Date: 11/25/2024
Notification Time: 20:00 [ET]
Event Date: 11/22/2024
Event Time: 00:00 [PST]
Last Update Date: 11/25/2024
Emergency Class: Non Emergency
10 CFR Section:
Agreement State
10 CFR Section:
Agreement State
Person (Organization):
O'Keefe, Neil (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
ILTAB, (EMAIL) (EMAIL)
CNSNS (Mexico), - (EMAIL)
O'Keefe, Neil (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
ILTAB, (EMAIL) (EMAIL)
CNSNS (Mexico), - (EMAIL)
AGREEMENT STATE REPORT - LOST EXIT SIGNS
The following information was provided by the California Radiologic Health Branch via email:
"On 11/22/24, an exit sign containing tritium was discovered missing from an Ikea warehouse located in San Diego. Site personnel were not sure when it went missing. A search of the facility and questioning of warehouse employees did not locate the missing sign."
Information on the exit sign:
Make and Model: SRB Technologies, Betalux-E Series, Model 171.
NC License No.: 034-0534-2.
Maximum Tritium activity: 21.6 Ci, 799.2 GBq.
California 5010 Number: 112524
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 provided by the California Radiologic Health Branch via email:
"On 11/22/24, an exit sign containing tritium was discovered missing from an Ikea warehouse located in San Diego. Site personnel were not sure when it went missing. A search of the facility and questioning of warehouse employees did not locate the missing sign."
Information on the exit sign:
Make and Model: SRB Technologies, Betalux-E Series, Model 171.
NC License No.: 034-0534-2.
Maximum Tritium activity: 21.6 Ci, 799.2 GBq.
California 5010 Number: 112524
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