Event Notification Report for April 25, 2024
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
04/24/2024 - 04/25/2024
Agreement State
Event Number: 57108
Rep Org: Arkansas Department of Health
Licensee: Domtar
Region: 4
City: Ashdown Mill State: AR
County:
License #: ARK-0354-03120
Agreement: Y
Docket:
NRC Notified By: David Eichenberger
HQ OPS Officer: Adam Koziol
Licensee: Domtar
Region: 4
City: Ashdown Mill State: AR
County:
License #: ARK-0354-03120
Agreement: Y
Docket:
NRC Notified By: David Eichenberger
HQ OPS Officer: Adam Koziol
Notification Date: 05/06/2024
Notification Time: 12:49 [ET]
Event Date: 04/25/2024
Event Time: 00:00 [CDT]
Last Update Date: 05/06/2024
Notification Time: 12:49 [ET]
Event Date: 04/25/2024
Event Time: 00:00 [CDT]
Last Update Date: 05/06/2024
Emergency Class: Non Emergency
10 CFR Section:
Agreement State
10 CFR Section:
Agreement State
Person (Organization):
O'Keefe, Neil (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
O'Keefe, Neil (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
AGREEMENT STATE REPORT - STUCK SHUTTERS
The following information was provided by the Arkansas Department of Health, Radiation Control Section (ADH) via email:
"On 4/25/2024, [the licensee] notified ADH by phone that, during semi-annual routine inspection, five Berthold process nuclear gauges were either stuck/seized or difficult to operate. All affected gauges were stuck in the open/operate position. A representative from Berthold reported to the site on 4/30/2024 and successfully cleaned/lubricated all shutter/operating mechanisms restoring normal operation to the affected gauges.
"The following gauges were affected:
"Berthold Model LB 7440-D-CR: SN 37624-12090: Cs-137 50 mci: (Unknown License)
"Berthold Model LB 330: SN 2868-11-89: Cs-137 24 mci: (Unknown License)
"Berthold Model LB 300L: SN 6001: Co-60 4.1, 0.7, 0.2 mci: (General License)
"Berthold Model LB 300: SN 7687: Co-60 1.8, 0.5, 0.2 mci: (Specific License)
"Berthold Model LB 300L: SN 17729-1396-10023: Cs-137 24 mci: (General License)
"Licensee corrective actions included flagging the gauges locally, involving management, notifying their safety department, and suspending any activity that would require access to the gauges until they were repaired.
"The licensee is evaluating disposal of the gauges and possible replacement.
"The licensee confirmed at 1020 CDT on 5/06/2024, that one LB 300 gauge shown above is a specific license gauge.
"The investigation is ongoing, and reporting will proceed in accordance with SA-300."
Arkansas Event Number: AR-2024-003
The following information was provided by the Arkansas Department of Health, Radiation Control Section (ADH) via email:
"On 4/25/2024, [the licensee] notified ADH by phone that, during semi-annual routine inspection, five Berthold process nuclear gauges were either stuck/seized or difficult to operate. All affected gauges were stuck in the open/operate position. A representative from Berthold reported to the site on 4/30/2024 and successfully cleaned/lubricated all shutter/operating mechanisms restoring normal operation to the affected gauges.
"The following gauges were affected:
"Berthold Model LB 7440-D-CR: SN 37624-12090: Cs-137 50 mci: (Unknown License)
"Berthold Model LB 330: SN 2868-11-89: Cs-137 24 mci: (Unknown License)
"Berthold Model LB 300L: SN 6001: Co-60 4.1, 0.7, 0.2 mci: (General License)
"Berthold Model LB 300: SN 7687: Co-60 1.8, 0.5, 0.2 mci: (Specific License)
"Berthold Model LB 300L: SN 17729-1396-10023: Cs-137 24 mci: (General License)
"Licensee corrective actions included flagging the gauges locally, involving management, notifying their safety department, and suspending any activity that would require access to the gauges until they were repaired.
"The licensee is evaluating disposal of the gauges and possible replacement.
"The licensee confirmed at 1020 CDT on 5/06/2024, that one LB 300 gauge shown above is a specific license gauge.
"The investigation is ongoing, and reporting will proceed in accordance with SA-300."
Arkansas Event Number: AR-2024-003
Power Reactor
Event Number: 57092
Facility: Perry
Region: 3 State: OH
Unit: [1] [] []
RX Type: [1] GE-6
NRC Notified By: Clifford Jones
HQ OPS Officer: Ernest West
Region: 3 State: OH
Unit: [1] [] []
RX Type: [1] GE-6
NRC Notified By: Clifford Jones
HQ OPS Officer: Ernest West
Notification Date: 04/25/2024
Notification Time: 20:24 [ET]
Event Date: 04/25/2024
Event Time: 17:55 [EDT]
Last Update Date: 04/25/2024
Notification Time: 20:24 [ET]
Event Date: 04/25/2024
Event Time: 17:55 [EDT]
Last Update Date: 04/25/2024
Emergency Class: Non Emergency
10 CFR Section:
50.72(b)(3)(ii)(B) - Unanalyzed Condition
10 CFR Section:
50.72(b)(3)(ii)(B) - Unanalyzed Condition
Person (Organization):
Betancourt-Roldan, Diana (R3DO)
Betancourt-Roldan, Diana (R3DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
CONFIGURATION OF 'B' AND 'C' RESIDUAL HEAT REMOVAL LOOPS IN AN UNANALYZED CONDITION
The following information was provided by the licensee via phone and email:
"On April 25, 2024, it was determined that between March 25, 2024, 2015 [EDT] and March 30, 2024, 2024 [EDT], the condensate transfer and storage system was employed as a method of alternate keepfill in place of the installed residual heat removal (RHR) system's waterleg pump for RHR system loops `B' and `C'. This condition is not bounded by existing design and licensing documents.
"Therefore, this condition is being reported as an eight-hour, non-emergency notification per 10 CFR 50.72(b)(3)(ii)(B).
"There was no impact on the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified."
The following information was provided by the licensee via phone and email:
"On April 25, 2024, it was determined that between March 25, 2024, 2015 [EDT] and March 30, 2024, 2024 [EDT], the condensate transfer and storage system was employed as a method of alternate keepfill in place of the installed residual heat removal (RHR) system's waterleg pump for RHR system loops `B' and `C'. This condition is not bounded by existing design and licensing documents.
"Therefore, this condition is being reported as an eight-hour, non-emergency notification per 10 CFR 50.72(b)(3)(ii)(B).
"There was no impact on the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified."