Event Notification Report for December 20, 2022
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
12/19/2022 - 12/20/2022
EVENT NUMBERS56270 56280 56281
Agreement State
Event Number: 56270
Rep Org: Texas Dept of State Health Services
Licensee: Methodist Hospital
Region: 4
City: Houston State: TX
County:
License #: L 00457
Agreement: Y
Docket:
NRC Notified By: Karen Blanchard
HQ OPS Officer: Adam Koziol
Notification Date: 12/13/2022
Notification Time: 13:10 [ET]
Event Date: 12/12/2022
Event Time: 00:00 [CST]
Last Update Date: 12/13/2022
Emergency Class: Non Emergency
10 CFR Section:
Agreement State
Person (Organization):
Drake, James (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
Event Text
AGREEMENT STATE REPORT - EQUIPMENT FAILURE TO HOUSE SOURCE
The following information was provided by the Texas Department of State Health Services via email:
"On December 12, 2022, the licensee reported that following a cardiac brachytherapy procedure the source train containing strontium-90 sources could not be fully retracted into the safe position. The device was placed into the emergency shielding box by a staff member. There was no exposure to the patient and there was no overexposure, based on calculations, to the individual who handled the device. The individual's ring and whole body dosimeters will be sent for processing to confirm. A manufacturer's representative responded later in the day and secured the sources into the fully shielded position and assessed the cause. He believed the hemostasis valve had been tightened a little too tight which caused a kink in the catheter that prevented the retraction.
"Device: Novoste Brachytherapy device manufactured by Best Vascular, model A-1000 series, SN: 87690
"Sources: 40 millimeter source train containing 16 Strontium-90 sealed sources with original activity of 34.88 millicuries (June 2002), source manufacturer AEA, model SICW.2, train SN: ZA-706.
"An investigation into this event is ongoing. More information will be provided as it is obtained in accordance with SA-300."
Texas Incident No.: 9971
Texas NMED No.: TX220040
Power Reactor
Event Number: 56280
Facility: Peach Bottom
Region: 1 State: PA
Unit: [3] [] []
RX Type: [2] GE-4,[3] GE-4
NRC Notified By: Tim Grimme
HQ OPS Officer: Brian Lin
Notification Date: 12/19/2022
Notification Time: 12:50 [ET]
Event Date: 11/11/2022
Event Time: 23:33 [EST]
Last Update Date: 12/19/2022
Emergency Class: Non Emergency
10 CFR Section:
50.73(a)(1) - Invalid Specif System Actuation
Person (Organization):
Eve, Elise (R1DO)
Power Reactor Unit Info
Unit |
SCRAM Code |
RX Crit |
Initial PWR |
Initial RX Mode |
Current PWR |
Current RX Mode |
3 |
N |
Y |
100 |
Power Operation |
100 |
Power Operation |
Event Text
60-DAY TELEPHONIC NOTIFICATION
The following information was provided by the licensee via email:
"This 60-day telephone notification is being made per the reporting requirements specified by 10 CFR 50.73(a)(1) and 50.73(a)(2)(iv)(A) for an invalid actuation of a primary containment isolation signal affecting more than one system.
"On November 11, 2022, at 2333 hours EST, Peach Bottom experienced an unplanned loss of the #343 Off-Site Startup Source. Due to the temporary loss of power during automatic bus transfers, several systems experienced Primary Containment Isolation System (PCIS) Group II and Group III (GP II/III) isolation signals. Plant Systems impacted by isolation valve closure included: Reactor Water Clean Up (RWCU), Containment Atmospheric Control (CAC), Traversing In-Core Probe (TIP) Purge, Primary Containment Floor and Equipment Drains, and the Instrument Nitrogen system. All equipment responded as designed.
"Plant conditions which initiate PCIS GP II isolation signals are Reactor Vessel Low Water Level, High Drywell Pressure, RWCU system High Flow or RWCU Non-Regenerative Heat Exchanger High Outlet Temperature. The PCIS GP III actuations are initiated by the Reactor Vessel Low Water Level, Primary Containment High Pressure, Reactor Building Ventilation High Radiation or Refuel Floor Ventilation High Radiation. At the time of the event, none of these actual plant conditions existed; therefore, the actuation of the PCIS was invalid.
"The loss of the #343 Off-Site Startup Source was caused by a failed printed circuit card in the programable logic controller (PLC) for the 3435 breaker. There is no time-based maintenance strategy for PLC replacement. The PLC circuit card was replaced, and the breaker restored to full qualification and service. Preventive maintenance strategy will be enhanced to address the identified vulnerability.
"The licensee has notified the NRC Resident Inspector."
Power Reactor
Event Number: 56281
Facility: Brunswick
Region: 2 State: NC
Unit: [1] [2] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: Joseph Strnad
HQ OPS Officer: Brian Lin
Notification Date: 12/19/2022
Notification Time: 13:12 [ET]
Event Date: 12/19/2022
Event Time: 07:35 [EST]
Last Update Date: 12/19/2022
Emergency Class: Non Emergency
10 CFR Section:
26.719 - Fitness For Duty
Person (Organization):
Miller, Mark (R2DO)
FFD Group, (EMAIL)
Power Reactor Unit Info
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 |
98 |
Power Operation |
95 |
Power Operation |
Event Text
FAILED FITNESS FOR DUTY TEST
The following information was provided by the licensee via email:
"At 0735 EST on December 19, 2022, it was determined that a non-licensed employee supervisor failed a test specified by the Fitness-for-Duty (FFD) testing program. The individual's authorization for site access has been terminated.
"The NRC Resident Inspector has been notified."