| Work Detail |
The Nuclear Regulatory Commission issued the following event notification (No. 55796) involving Palo Verde Nuclear Plant, Arizona:
LOSS OF TECHNICAL SUPPORT CENTER (TSC)
The following information was provided by the licensee via email:
"The following event description is based on information currently available. If through subsequent reviews of this event additional information is identified that is pertinent to this event or alters the information being provided at this time a follow-up notification will be made via the ENS or under the reporting requirements of 10CFR50.73.
"At 1306 [MST] on March 19, 2022, the Technical Support Center (TSC) lost normal and alternate electrical power, resulting in the inability to perform emergency assessments at the TSC. At the time of the event, the normal power source to the TSC (offsite power) was under a clearance for maintenance activities and the alternate power source (backup generator) was running to provide electrical power to the TSC. At 1306, the alternate power source to the TSC was lost when the backup generator tripped. Power was restored to the TSC via the normal power source at 1723. The cause of the TSC backup generator trip is unknown at this time.
"All three units are stable and in Mode 1.
"No emergency classification was required per the Emergency Plan.
"The NRC Senior Resident Inspector has been informed."
Power Reactor
Event Number: 55796
Facility: Palo Verde
Region: 4
State: AZ
Unit: [1] [] []
RX Type: [1] CE,[2] CE,[3] CE
NRC Notified By: Ivory Byers
HQ OPS Officer: Thomas Herrity
Notification Date: 03/19/2022
Notification Time: 23:43 [ET]
Event Date: 03/19/2022
Event Time: 13:06 [MST]
Last Update Date: 03/20/2022
Emergency Class: Non Emergency
10 CFR Section:
50.72(b)(3)(xiii) - Loss Comm/Asmt/Response
Person (Organization):
Drake, James (R4DO) |
