Event Notification Report for April 03, 2012
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
04/02/2012 - 04/03/2012
Power Reactor
Event Number: 47800
Facility: FERMI
Region: 3 State: MI
Unit: [2] [] []
RX Type: [2] GE-4
NRC Notified By: JEFF GROFF
HQ OPS Officer: JOHN KNOKE
Region: 3 State: MI
Unit: [2] [] []
RX Type: [2] GE-4
NRC Notified By: JEFF GROFF
HQ OPS Officer: JOHN KNOKE
Notification Date: 04/03/2012
Notification Time: 05:57 [ET]
Event Date: 04/03/2012
Event Time: 05:24 [EDT]
Last Update Date: 04/06/2012
Notification Time: 05:57 [ET]
Event Date: 04/03/2012
Event Time: 05:24 [EDT]
Last Update Date: 04/06/2012
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):
BILLY DICKSON (R3DO)
BILLY DICKSON (R3DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | N | N | 0 | Refueling | 0 | Refueling |
SPDS AND ERDS REMOVED FROM SERVICE FOR PLANNED MAINTENANCE
"On 4/03/12 at 0524 EDT, the Safety Parameter Display System (SPDS) and Emergency Response Data System (ERDS) were removed from service to support activities for a planned maintenance outage on the UPS vital bus power supply. The duration of work is expected to be approximately 80 hours. During this time, the majority of the control room indications remain available to the plant staff, and will be used for emergency response, if needed. Information will be communicated to the NRC using other available communication systems, if needed. The plant is currently in Mode 5, and will remain in Mode 5, for the duration of the SPDS and ERDS unavailability. Since the unavailability will last greater than 8 hours, this is considered a Loss of Emergency Assessment Capability, and reportable under 10 CFR 50.72(b)(3)(xiii).
"Follow up notification will be made when SPDS and ERDS have been restored."
The licensee has notified the NRC Resident Inspector.
* * * UPDATE FROM GEORGE PICCARD TO VINCE KLCO ON 4/6/2012 AT 1227 EDT * * *
"At 0702 EDT on April 6, 2012, Safety Parameter Display System (SPDS) and Emergency Response Data System (ERDS) were restored, following restoration of the associated power bus."
The licensee notified the NRC Resident Inspector.
Notified the R3DO (Bloomer)
"On 4/03/12 at 0524 EDT, the Safety Parameter Display System (SPDS) and Emergency Response Data System (ERDS) were removed from service to support activities for a planned maintenance outage on the UPS vital bus power supply. The duration of work is expected to be approximately 80 hours. During this time, the majority of the control room indications remain available to the plant staff, and will be used for emergency response, if needed. Information will be communicated to the NRC using other available communication systems, if needed. The plant is currently in Mode 5, and will remain in Mode 5, for the duration of the SPDS and ERDS unavailability. Since the unavailability will last greater than 8 hours, this is considered a Loss of Emergency Assessment Capability, and reportable under 10 CFR 50.72(b)(3)(xiii).
"Follow up notification will be made when SPDS and ERDS have been restored."
The licensee has notified the NRC Resident Inspector.
* * * UPDATE FROM GEORGE PICCARD TO VINCE KLCO ON 4/6/2012 AT 1227 EDT * * *
"At 0702 EDT on April 6, 2012, Safety Parameter Display System (SPDS) and Emergency Response Data System (ERDS) were restored, following restoration of the associated power bus."
The licensee notified the NRC Resident Inspector.
Notified the R3DO (Bloomer)
Power Reactor
Event Number: 47801
Facility: COOK
Region: 3 State: MI
Unit: [] [2] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: BRAD LEWIS
HQ OPS Officer: JOHN KNOKE
Region: 3 State: MI
Unit: [] [2] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: BRAD LEWIS
HQ OPS Officer: JOHN KNOKE
Notification Date: 04/03/2012
Notification Time: 07:36 [ET]
Event Date: 04/03/2012
Event Time: 08:00 [EDT]
Last Update Date: 04/03/2012
Notification Time: 07:36 [ET]
Event Date: 04/03/2012
Event Time: 08:00 [EDT]
Last Update Date: 04/03/2012
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):
BILLY DICKSON (R3DO)
BILLY DICKSON (R3DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | N | N | 0 | Refueling | 0 | Refueling |
UNIT 2 PLANT PROCESS COMPUTER OUT-OF-SERVICE FOR PLANNED MAINTENANCE
"The Unit 2 DC Cook Nuclear Plant (CNP) Plant Process Computer (PPC) will be removed from service on Tuesday, April 3, 2012 at 0800 EDT to support scheduled maintenance. This will cause the entire Unit 2 PPC, including the ERDS [Emergency Response Data System] to be unavailable to the NRC Operations Center. The planned maintenance also affects the Safety Parameter Display System (SPDS), the Real Time Data Repository (RDR), and PPC data to Emergency Response Facilities at CNP.
"The scheduled maintenance, returning of equipment to service, and post maintenance testing is expected to be completed by 0000 EDT on Wednesday, April 4, 2012.
"Compensatory measures exist within the DC Cook Emergency Response procedures to provide plant data via the Emergency Notification System to the NRC Operations Center until the ERDS can be returned to service.
"The licensee has notified the NRC Senior Resident Inspector.
"This notification is being made in accordance with 10 CFR 50.72 (b)(3)(xiii) due to any event that results in a major loss of emergency assessment capability, offsite response capability, offsite communications capability (e.g. significant portion of control room indication, Emergency Notification System, or offsite notification system)."
* * * UPDATE FROM BRAD LEWIS TO CHARLES TEAL ON 4/3/12 AT 1536 EDT * * *
At time 1500 EDT, the Plant Process Computer and ERDS system has been restored to service.
The licensee has notified the NRC Resident Inspector. Notified R3DO (Dickson).
"The Unit 2 DC Cook Nuclear Plant (CNP) Plant Process Computer (PPC) will be removed from service on Tuesday, April 3, 2012 at 0800 EDT to support scheduled maintenance. This will cause the entire Unit 2 PPC, including the ERDS [Emergency Response Data System] to be unavailable to the NRC Operations Center. The planned maintenance also affects the Safety Parameter Display System (SPDS), the Real Time Data Repository (RDR), and PPC data to Emergency Response Facilities at CNP.
"The scheduled maintenance, returning of equipment to service, and post maintenance testing is expected to be completed by 0000 EDT on Wednesday, April 4, 2012.
"Compensatory measures exist within the DC Cook Emergency Response procedures to provide plant data via the Emergency Notification System to the NRC Operations Center until the ERDS can be returned to service.
"The licensee has notified the NRC Senior Resident Inspector.
"This notification is being made in accordance with 10 CFR 50.72 (b)(3)(xiii) due to any event that results in a major loss of emergency assessment capability, offsite response capability, offsite communications capability (e.g. significant portion of control room indication, Emergency Notification System, or offsite notification system)."
* * * UPDATE FROM BRAD LEWIS TO CHARLES TEAL ON 4/3/12 AT 1536 EDT * * *
At time 1500 EDT, the Plant Process Computer and ERDS system has been restored to service.
The licensee has notified the NRC Resident Inspector. Notified R3DO (Dickson).