Event Notification Report for January 05, 2024
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
01/04/2024 - 01/05/2024
Power Reactor
Event Number: 56914
Facility: Perry
Region: 3 State: OH
Unit: [1] [] []
RX Type: [1] GE-6
NRC Notified By: Luke Vriezen
HQ OPS Officer: Ernest West
Region: 3 State: OH
Unit: [1] [] []
RX Type: [1] GE-6
NRC Notified By: Luke Vriezen
HQ OPS Officer: Ernest West
Notification Date: 01/05/2024
Notification Time: 15:56 [ET]
Event Date: 01/05/2024
Event Time: 15:52 [EST]
Last Update Date: 01/08/2024
Notification Time: 15:56 [ET]
Event Date: 01/05/2024
Event Time: 15:52 [EST]
Last Update Date: 01/08/2024
Emergency Class: Non Emergency
10 CFR Section:
50.72(b)(2)(xi) - Offsite Notification
10 CFR Section:
50.72(b)(2)(xi) - Offsite Notification
Person (Organization):
Stoedter, Karla (R3DO)
Stoedter, Karla (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 |
EN Revision Imported Date: 1/9/2024
EN Revision Text: OFFSITE NOTIFICATION
The following information was provided by the licensee via phone and email:
"At 1552 [EST] on 01/05/2024, Perry Nuclear Power Plant reported elevated levels of tritium in the underdrain system to the state of Ohio as a non-voluntary reporting of tritium. An investigation is currently ongoing to identify the cause of the elevated tritium levels. The tritium levels in this location do not exceed any NRC regulations or reporting criteria.
"This notification is being made solely as a four-hour, non-emergency notification for a notification of other government agency. This event is reportable in accordance with 10 CFR 50.72(b)(2)(xi).
"There was no impact on the health and safety of the public or plant personnel.
"The NRC Resident Inspector has been notified."
EN Revision Text: OFFSITE NOTIFICATION
The following information was provided by the licensee via phone and email:
"At 1552 [EST] on 01/05/2024, Perry Nuclear Power Plant reported elevated levels of tritium in the underdrain system to the state of Ohio as a non-voluntary reporting of tritium. An investigation is currently ongoing to identify the cause of the elevated tritium levels. The tritium levels in this location do not exceed any NRC regulations or reporting criteria.
"This notification is being made solely as a four-hour, non-emergency notification for a notification of other government agency. This event is reportable in accordance with 10 CFR 50.72(b)(2)(xi).
"There was no impact on the health and safety of the public or plant personnel.
"The NRC Resident Inspector has been notified."
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
Power Reactor
Event Number: 56915
Facility: Davis Besse
Region: 3 State: OH
Unit: [1] [] []
RX Type: [1] B&W-R-LP
NRC Notified By: Ben Skilliter
HQ OPS Officer: Ernest West
Region: 3 State: OH
Unit: [1] [] []
RX Type: [1] B&W-R-LP
NRC Notified By: Ben Skilliter
HQ OPS Officer: Ernest West
Notification Date: 01/05/2024
Notification Time: 18:18 [ET]
Event Date: 01/05/2024
Event Time: 10:40 [EST]
Last Update Date: 01/17/2024
Notification Time: 18:18 [ET]
Event Date: 01/05/2024
Event Time: 10:40 [EST]
Last Update Date: 01/17/2024
Emergency Class: Non Emergency
10 CFR Section:
50.72(b)(3)(v)(C) - Pot Uncntrl Rad Rel 50.72(b)(3)(v)(D) - Accident Mitigation
10 CFR Section:
50.72(b)(3)(v)(C) - Pot Uncntrl Rad Rel 50.72(b)(3)(v)(D) - Accident Mitigation
Person (Organization):
Stoedter, Karla (R3DO)
Stoedter, Karla (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 |
EN Revision Imported Date: 1/18/2024
EN Revision Text: EMERGENCY VENTILATION SYSTEMS INOPERABLE
The following information was provided by the licensee via phone and email:
"At approximately 1111 EST on 01/05/2024, a mechanical penetration room door was discovered unlatched. Based on security badge history, the door was last opened at 1040 EST. The unlatched door resulted in both trains of the station emergency ventilation system being inoperable due to being unable to maintain the shield building negative pressure area. With both trains simultaneously inoperable, this condition is being reported as an eight-hour, non-emergency notification per 10 CFR 50.72(b)(3)(v). The door was closed and verified latched upon discovery to restore the systems to an operable status.
"There was no impact on the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified."
* * * RETRACTION ON 1/17/24 AT 1400 EST FROM CHRIS HOTZ TO ADAM KOZIOL * * *
"The station emergency ventilation system (EVS) was tested with the mechanical penetration room door unlatched. The test results showed that the station EVS attained the required negative pressure in the shield building within the time required by the Technical Specifications. Therefore, the station EVS remained operable with the door unlatched, and this issue did not prevent the system from fulfilling its safety function to control the release of radioactive material and mitigate the consequences of an accident.
"The NRC Resident Inspector has been notified."
Notified R3DO (Orlikowski)
EN Revision Text: EMERGENCY VENTILATION SYSTEMS INOPERABLE
The following information was provided by the licensee via phone and email:
"At approximately 1111 EST on 01/05/2024, a mechanical penetration room door was discovered unlatched. Based on security badge history, the door was last opened at 1040 EST. The unlatched door resulted in both trains of the station emergency ventilation system being inoperable due to being unable to maintain the shield building negative pressure area. With both trains simultaneously inoperable, this condition is being reported as an eight-hour, non-emergency notification per 10 CFR 50.72(b)(3)(v). The door was closed and verified latched upon discovery to restore the systems to an operable status.
"There was no impact on the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified."
* * * RETRACTION ON 1/17/24 AT 1400 EST FROM CHRIS HOTZ TO ADAM KOZIOL * * *
"The station emergency ventilation system (EVS) was tested with the mechanical penetration room door unlatched. The test results showed that the station EVS attained the required negative pressure in the shield building within the time required by the Technical Specifications. Therefore, the station EVS remained operable with the door unlatched, and this issue did not prevent the system from fulfilling its safety function to control the release of radioactive material and mitigate the consequences of an accident.
"The NRC Resident Inspector has been notified."
Notified R3DO (Orlikowski)