Event Notification Report for April 16, 2012
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
04/15/2012 - 04/16/2012
Power Reactor
Event Number: 47838
Facility: HARRIS
Region: 2 State: NC
Unit: [1] [] []
RX Type: [1] W-3-LP
NRC Notified By: CURTIS BULLOCK
HQ OPS Officer: VINCE KLCO
Region: 2 State: NC
Unit: [1] [] []
RX Type: [1] W-3-LP
NRC Notified By: CURTIS BULLOCK
HQ OPS Officer: VINCE KLCO
Notification Date: 04/16/2012
Notification Time: 07:38 [ET]
Event Date: 04/16/2012
Event Time: 08:00 [EDT]
Last Update Date: 04/16/2012
Notification Time: 07:38 [ET]
Event Date: 04/16/2012
Event Time: 08:00 [EDT]
Last Update Date: 04/16/2012
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):
KATHLEEN O'DONOHUE (R2DO)
KATHLEEN O'DONOHUE (R2DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 92 | Power Operation | 92 | Power Operation |
PLANNED MAINTENANCE ON THE TECHNICAL SUPPORT CENTER NORMAL POWER SUPPLY
"At approximately 0800 [EDT] on April 16, 2012, the Harris Nuclear Plant (HNP) Technical Support Center (TSC) normal power feed will be removed from service for scheduled maintenance.
"The maintenance will consist of first switching the TSC to the TSC backup power supply. The normal supply will be disconnected and replaced with another offsite power source which is independent of the Harris switchyard. This power arrangement will remain in place while maintenance is performed on the TSC normal power supply and is expected to last approximately two months. A backup diesel generator is stationed near the TSC which can be connected if necessary during an emergency.
"An update will be provided when the TSC normal power supply has been returned to its normal alignment
"This event is reportable per 10CFR50.72(b)(3)(xiii) as described in NUREG-1022, Rev. 2, since this work activity affects an emergency response facility for the duration of the maintenance.
"The [NRC] Senior Resident Inspector has been informed."
"At approximately 0800 [EDT] on April 16, 2012, the Harris Nuclear Plant (HNP) Technical Support Center (TSC) normal power feed will be removed from service for scheduled maintenance.
"The maintenance will consist of first switching the TSC to the TSC backup power supply. The normal supply will be disconnected and replaced with another offsite power source which is independent of the Harris switchyard. This power arrangement will remain in place while maintenance is performed on the TSC normal power supply and is expected to last approximately two months. A backup diesel generator is stationed near the TSC which can be connected if necessary during an emergency.
"An update will be provided when the TSC normal power supply has been returned to its normal alignment
"This event is reportable per 10CFR50.72(b)(3)(xiii) as described in NUREG-1022, Rev. 2, since this work activity affects an emergency response facility for the duration of the maintenance.
"The [NRC] Senior Resident Inspector has been informed."
Power Reactor
Event Number: 47840
Facility: HARRIS
Region: 2 State: NC
Unit: [1] [] []
RX Type: [1] W-3-LP
NRC Notified By: CURTIS BULLOCK
HQ OPS Officer: JOHN SHOEMAKER
Region: 2 State: NC
Unit: [1] [] []
RX Type: [1] W-3-LP
NRC Notified By: CURTIS BULLOCK
HQ OPS Officer: JOHN SHOEMAKER
Notification Date: 04/16/2012
Notification Time: 17:11 [ET]
Event Date: 04/16/2012
Event Time: 09:32 [EDT]
Last Update Date: 04/16/2012
Notification Time: 17:11 [ET]
Event Date: 04/16/2012
Event Time: 09:32 [EDT]
Last Update Date: 04/16/2012
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):
KATHLEEN O'DONOHUE (R2DO)
KATHLEEN O'DONOHUE (R2DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 92 | Power Operation | 92 | Power Operation |
UNAVAILABILITY OF TECHNICAL SUPPORT CENTER RADIATION MONITOR
"At 0932 EDT on April 16, 2012, the Harris Nuclear Plant (HNP) Technical Support Center (TSC) normal power feed was removed from service for scheduled maintenance.
"Upon restoration of power to the TSC, it was identified that the TSC radiation monitor (RM-3653C) did not return to service as expected. Following discovery, Radiation Protection technicians were dispatched to investigate the cause of RM-3653C not operating properly.
"At 1627 EDT, the TSC radiation monitor has been returned to service and is operable.
"This event is reportable per 10CFR50.72(b)(3)(xiii) as described in NUREGÀ1022, Rev. 2 due to the loss of the TSC radiation monitor.
"The NRC Senior Resident Inspector has been informed"
The cause of the radiation monitor failure was related to a dead back-up battery which did not allow the radiation monitor to properly re-boot after power was restored.
"At 0932 EDT on April 16, 2012, the Harris Nuclear Plant (HNP) Technical Support Center (TSC) normal power feed was removed from service for scheduled maintenance.
"Upon restoration of power to the TSC, it was identified that the TSC radiation monitor (RM-3653C) did not return to service as expected. Following discovery, Radiation Protection technicians were dispatched to investigate the cause of RM-3653C not operating properly.
"At 1627 EDT, the TSC radiation monitor has been returned to service and is operable.
"This event is reportable per 10CFR50.72(b)(3)(xiii) as described in NUREGÀ1022, Rev. 2 due to the loss of the TSC radiation monitor.
"The NRC Senior Resident Inspector has been informed"
The cause of the radiation monitor failure was related to a dead back-up battery which did not allow the radiation monitor to properly re-boot after power was restored.