Event Notification Report for June 10, 2008
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
06/09/2008 - 06/10/2008
Power Reactor
Event Number: 44282
Facility: COMANCHE PEAK
Region: 4 State: TX
Unit: [1] [] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: ED LESSMANN
HQ OPS Officer: HOWIE CROUCH
Region: 4 State: TX
Unit: [1] [] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: ED LESSMANN
HQ OPS Officer: HOWIE CROUCH
Notification Date: 06/10/2008
Notification Time: 18:04 [ET]
Event Date: 06/10/2008
Event Time: 10:11 [CDT]
Last Update Date: 06/10/2008
Notification Time: 18:04 [ET]
Event Date: 06/10/2008
Event Time: 10:11 [CDT]
Last Update Date: 06/10/2008
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):
GEOFFREY MILLER (R4)
GEOFFREY MILLER (R4)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
LOSS OF THE SAFETY PARAMETER DISPLAY SYSTEM
"At 10:11 today, 10 June 08, CPNPP [Comanche Peak Nuclear Power Plant] Unit 1 plant computer suffered a power supply failure. The failure of this power supply resulted in a loss of the SPDS (Safety Parameter Display System). Loss of the SPDS meets the 8-hr. reporting requirements of 10CFR50.72(b)(3)(xiii)."
Troubleshooting and repair of the plant computer power supply is in progress. Repairs are estimated to be complete at 2100 CDT.
The licensee has notified the NRC Resident Inspector.
"At 10:11 today, 10 June 08, CPNPP [Comanche Peak Nuclear Power Plant] Unit 1 plant computer suffered a power supply failure. The failure of this power supply resulted in a loss of the SPDS (Safety Parameter Display System). Loss of the SPDS meets the 8-hr. reporting requirements of 10CFR50.72(b)(3)(xiii)."
Troubleshooting and repair of the plant computer power supply is in progress. Repairs are estimated to be complete at 2100 CDT.
The licensee has notified the NRC Resident Inspector.
Power Reactor
Event Number: 44283
Facility: LIMERICK
Region: 1 State: PA
Unit: [1] [2] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: JEAN BROILLET
HQ OPS Officer: PETE SNYDER
Region: 1 State: PA
Unit: [1] [2] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: JEAN BROILLET
HQ OPS Officer: PETE SNYDER
Notification Date: 06/11/2008
Notification Time: 00:59 [ET]
Event Date: 06/10/2008
Event Time: 22:55 [EDT]
Last Update Date: 06/11/2008
Notification Time: 00:59 [ET]
Event Date: 06/10/2008
Event Time: 22:55 [EDT]
Last Update Date: 06/11/2008
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):
ROBERT SUMMERS (R1)
ROBERT SUMMERS (R1)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
| 2 | N | Y | 100 | Power Operation | 100 | Power Operation |
54 OF 165 EMERGENCY SIRENS INOPERABLE DUE TO POWER OUTAGE
"On June 10, 2008, at 2255 hours it was determined that 54 of the 165 Limerick Generating Station's Emergency Offsite Sirens were inoperable due to a loss of power. The loss was a result of heavy storms which passed through the area resulting in power outages throughout the region. Efforts are underway to restore power to the affected sirens."
The licensee notified the NRC Resident Inspector
* * * UPDATE FROM BRANDON SHULTZ TO HOWIE CROUCH AT 1709 EDT ON 6/11/08 * * *
"On June 11, 2008 at 1645 restoration efforts have recovered 44 of the 54 sirens rendered inoperable by the storm. The remaining 10 inoperable sirens no longer represents a major loss of emergency preparedness capabilities. Restoration of power to the remaining inoperable sirens continues under normal prioritization and using routine siren operating and maintenance procedures."
No completion time was provided concerning repair of the remaining sirens.
The licensee will be notifying the NRC Resident Inspector. Notified R1DO (Summers).
"On June 10, 2008, at 2255 hours it was determined that 54 of the 165 Limerick Generating Station's Emergency Offsite Sirens were inoperable due to a loss of power. The loss was a result of heavy storms which passed through the area resulting in power outages throughout the region. Efforts are underway to restore power to the affected sirens."
The licensee notified the NRC Resident Inspector
* * * UPDATE FROM BRANDON SHULTZ TO HOWIE CROUCH AT 1709 EDT ON 6/11/08 * * *
"On June 11, 2008 at 1645 restoration efforts have recovered 44 of the 54 sirens rendered inoperable by the storm. The remaining 10 inoperable sirens no longer represents a major loss of emergency preparedness capabilities. Restoration of power to the remaining inoperable sirens continues under normal prioritization and using routine siren operating and maintenance procedures."
No completion time was provided concerning repair of the remaining sirens.
The licensee will be notifying the NRC Resident Inspector. Notified R1DO (Summers).
Power Reactor
Event Number: 44279
Facility: PERRY
Region: 3 State: OH
Unit: [1] [] []
RX Type: [1] GE-6
NRC Notified By: ROBERT KIDDER
HQ OPS Officer: MARK ABRAMOVITZ
Region: 3 State: OH
Unit: [1] [] []
RX Type: [1] GE-6
NRC Notified By: ROBERT KIDDER
HQ OPS Officer: MARK ABRAMOVITZ
Notification Date: 06/10/2008
Notification Time: 01:29 [ET]
Event Date: 06/10/2008
Event Time: 02:00 [EDT]
Last Update Date: 06/11/2008
Notification Time: 01:29 [ET]
Event Date: 06/10/2008
Event Time: 02:00 [EDT]
Last Update Date: 06/11/2008
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):
PATTY PELKE (R3)
PATTY PELKE (R3)
| 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 WILL BE TAKEN OUT OF SERVICE
"The Perry Nuclear Power Plant will be taking the ERDS out of service for scheduled maintenance. From approximately 0200 hours EDT, on June 10, 2008, until 2000 hours EDT, on June 10, 2008, personnel will be performing cleaning and inspection activities on the 120 VAC Emergency Response Information System (ERIS) Computer Power Center. During this planned preventive maintenance, the Integrated Computer System, the Safety Parameter Display System (SPDS), and the automatic mode calculation of the Computer Aided Dose assessment program (CADAP) will incur approximately two periods of unavailability of approximately two hours each. The unavailability periods are necessary to align a temporary power supply and reconnect the 120 VAC ERIS Computer Power Center upon completion of the activities.
"The dose assessment function will be maintained during the brief out of service time periods by manual input of data into CADAP and, if required, by manual calculation. In the event of an emergency, plant parameter data will be orally transmitted to the facilities through the Status Board Ring Down circuit with back-up by the Plant Branch Exchange, the Off Premise Exchange, and various redundant intra-facility circuits throughout the emergency facilities. The ability to open and maintain on 'open line' using the Emergency Notification System will not be affected and will be the primary means of transferring plant data to the NRC as a contingency until the ERDS can be returned to service during the two periods of unavailability. 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 offsite communications capability. A follow-up notification will be made when the activities are completed and the equipment is restored. The Resident Inspector has been notified."
* * * UPDATE FROM DAVE O'DONNELL TO JOE O'HARA AT 1514 ON 6/10/08 * * *
ERDS is still in service and will not be restored to normal until tomorrow 6/11/08. The scheduled maintenance on the normal power supply today was delayed.
Notified R3DO(Lipa)
* * * UPDATE FROM DAVE O'DONNELL TO KARL DIEDERICH AT 1710 ON 6/11/08 * * *
ERDS was on a temporary power supply. ERDS restored to normal power supply at 1650.
Notified R3DO (Louden).
"The Perry Nuclear Power Plant will be taking the ERDS out of service for scheduled maintenance. From approximately 0200 hours EDT, on June 10, 2008, until 2000 hours EDT, on June 10, 2008, personnel will be performing cleaning and inspection activities on the 120 VAC Emergency Response Information System (ERIS) Computer Power Center. During this planned preventive maintenance, the Integrated Computer System, the Safety Parameter Display System (SPDS), and the automatic mode calculation of the Computer Aided Dose assessment program (CADAP) will incur approximately two periods of unavailability of approximately two hours each. The unavailability periods are necessary to align a temporary power supply and reconnect the 120 VAC ERIS Computer Power Center upon completion of the activities.
"The dose assessment function will be maintained during the brief out of service time periods by manual input of data into CADAP and, if required, by manual calculation. In the event of an emergency, plant parameter data will be orally transmitted to the facilities through the Status Board Ring Down circuit with back-up by the Plant Branch Exchange, the Off Premise Exchange, and various redundant intra-facility circuits throughout the emergency facilities. The ability to open and maintain on 'open line' using the Emergency Notification System will not be affected and will be the primary means of transferring plant data to the NRC as a contingency until the ERDS can be returned to service during the two periods of unavailability. 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 offsite communications capability. A follow-up notification will be made when the activities are completed and the equipment is restored. The Resident Inspector has been notified."
* * * UPDATE FROM DAVE O'DONNELL TO JOE O'HARA AT 1514 ON 6/10/08 * * *
ERDS is still in service and will not be restored to normal until tomorrow 6/11/08. The scheduled maintenance on the normal power supply today was delayed.
Notified R3DO(Lipa)
* * * UPDATE FROM DAVE O'DONNELL TO KARL DIEDERICH AT 1710 ON 6/11/08 * * *
ERDS was on a temporary power supply. ERDS restored to normal power supply at 1650.
Notified R3DO (Louden).