Peach Bottom Atomic Power Station: Major Loss of Emergency Preparedness Capabilities

Peach Bottom - LOSS OF TECHNICAL SUPPORT CENTER VENTILATION SYSTEM
 
U.S. Nuclear Regulatory Commission
Operations Center
 
Event Reports For
8/11/2020 - 8/12/2020
 
** EVENT NUMBERS **
Power Reactor
Event Number: 54829
Facility: Peach Bottom
Region: 1     State: PA
Unit: [2] [3] []
RX Type: [2] GE-4,[3] GE-4
NRC Notified By: John Whelan
HQ OPS Officer: Brian P. Smith
Notification Date: 08/11/2020
Notification Time: 20:22 [ET]
Event Date: 08/11/2020
Event Time: 13:34 [EDT]
Last Update Date: 08/11/2020
Emergency Class: Non Emergency
10 CFR Section:
50.72(b)(3)(xiii) - Loss Comm/Asmt/Response
Person (Organization):
MEL GRAY (R1DO)
 

 

Unit
SCRAM Code
RX Crit
Initial PWR
Initial RX Mode
Current PWR
Current RX Mode
2
N
Y
97
Power Operation
97
Power Operation
3
N
Y
100
Power Operation
100
Power Operation

 

Event Text
 
LOSS OF TECHNICAL SUPPORT CENTER VENTILATION SYSTEM

"At 1334 EDT on Tuesday August 11th, the Peach Bottom Atomic Power Station (PBAPS) Technical Support Center (TSC) Ventilation System lost power due to a trip of the Station Blackout (SBO) electric power supply breaker. The trip was due to a fault at the Conowingo Dam and Conowingo was not able to realign electric power to the SBO within an hour. Power restoration is complete and TSC Ventilation was restored at 1725 EDT.

"This report is being submitted pursuant to 10CFR 50.72(b)(3)(xiii) as a Major Loss of Emergency Preparedness Capabilities due to a reduction in the effectiveness of the Onsite Technical Support Center (TSC).

"The NRC Resident Inspector has been notified."
Submitted by admin on Thu, 08/13/2020 - 02:52