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Event Notification Report for March 29, 2025
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
03/28/2025 - 03/29/2025
EVENT NUMBERS
57638
Power Reactor
Event Number: 57638
Facility: Perry
Region: 3 State: OH
Unit: [1] [] []
RX Type: [1] GE-6
NRC Notified By: Robert McClary
HQ OPS Officer: Kerby Scales
Region: 3 State: OH
Unit: [1] [] []
RX Type: [1] GE-6
NRC Notified By: Robert McClary
HQ OPS Officer: Kerby Scales
Notification Date: 03/29/2025
Notification Time: 16:16 [ET]
Event Date: 03/29/2025
Event Time: 09:15 [EDT]
Last Update Date: 03/29/2025
Notification Time: 16:16 [ET]
Event Date: 03/29/2025
Event Time: 09:15 [EDT]
Last Update Date: 03/29/2025
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):
Gilliam, Jasmine (R3DO)
Gilliam, Jasmine (R3DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | N | 0 | Refueling | 0 | Refueling |
AUTOMATIC ACTUATION OF DIVISION 3 DIESEL GENERATOR
The following information was provided by the licensee via phone and email:
"At 0915 EDT, on March 29, 2025, with Unit 1 in mode 5 at zero percent power, an actuation of the emergency diesel generator system occurred during Unit 2 startup transformer testing. The reason for the auto-start was the loss of an electrical bus during testing. The division 3 diesel generator automatically started as designed on low safety bus voltage.
"This event is being reported in accordance with 10 CFR 50.72(b)(3)(iv)(A) as an event that results in a valid actuation of the emergency diesel generator system.
"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:
"At 0915 EDT, on March 29, 2025, with Unit 1 in mode 5 at zero percent power, an actuation of the emergency diesel generator system occurred during Unit 2 startup transformer testing. The reason for the auto-start was the loss of an electrical bus during testing. The division 3 diesel generator automatically started as designed on low safety bus voltage.
"This event is being reported in accordance with 10 CFR 50.72(b)(3)(iv)(A) as an event that results in a valid actuation of the emergency diesel generator system.
"There was no impact on the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified."