Event Notification Report for December 25, 2009
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
12/24/2009 - 12/25/2009
EVENT NUMBERS
45591
Power Reactor
Event Number: 45591
Facility: PERRY
Region: 3 State: OH
Unit: [1] [] []
RX Type: [1] GE-6
NRC Notified By: TOM MORSE
HQ OPS Officer: MARK ABRAMOVITZ
Region: 3 State: OH
Unit: [1] [] []
RX Type: [1] GE-6
NRC Notified By: TOM MORSE
HQ OPS Officer: MARK ABRAMOVITZ
Notification Date: 12/25/2009
Notification Time: 19:18 [ET]
Event Date: 12/25/2009
Event Time: 15:40 [EST]
Last Update Date: 12/25/2009
Notification Time: 19:18 [ET]
Event Date: 12/25/2009
Event Time: 15:40 [EST]
Last Update Date: 12/25/2009
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
Person (Organization):
MICHAEL KUNOWSKI (R3DO)
MICHAEL KUNOWSKI (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 |
EMERGENCY RESPONSE DATA SYSTEM OUT OF SERVICE
"On December 25, 2009, at approximately 1540 hours EST, the plant computer system (ICS) experienced a lockup due to a loss of electrical power to the meteorological tower. This resulted in a loss of most Emergency Response Data System (ERDS) information points, the Safety Parameter Display System (SPDS), and the automatic mode calculation of the Computer Aided Dose Assessment Program (CADAP). The Computer Aided Dose Assessment Program remained available in manual data entry mode.
"At 1758 hours, the ICS computer system operation was restored to normal. All SPDS and ERDS information points are now functioning properly. Power restoration activities to the meteorological tower are in progress. This event is being reported in accordance with 10 CFR 50.72(b)(3)(xiii) as a condition that results in a major loss of emergency offsite communications capability. The NRC Resident Inspector has been notified."
"On December 25, 2009, at approximately 1540 hours EST, the plant computer system (ICS) experienced a lockup due to a loss of electrical power to the meteorological tower. This resulted in a loss of most Emergency Response Data System (ERDS) information points, the Safety Parameter Display System (SPDS), and the automatic mode calculation of the Computer Aided Dose Assessment Program (CADAP). The Computer Aided Dose Assessment Program remained available in manual data entry mode.
"At 1758 hours, the ICS computer system operation was restored to normal. All SPDS and ERDS information points are now functioning properly. Power restoration activities to the meteorological tower are in progress. This event is being reported in accordance with 10 CFR 50.72(b)(3)(xiii) as a condition that results in a major loss of emergency offsite communications capability. The NRC Resident Inspector has been notified."