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Event Notification Report for September 22, 2005

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
09/21/2005 - 09/22/2005

** EVENT NUMBERS **


42004 42005 42006

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Power Reactor Event Number: 42004
Facility: WOLF CREEK
Region: 4 State: KS
Unit: [1] [ ] [ ]
RX Type: [1] W-4-LP
NRC Notified By: DAVE DEES
HQ OPS Officer: ARLON COSTA
Notification Date: 09/21/2005
Notification Time: 02:37 [ET]
Event Date: 09/20/2005
Event Time: 22:40 [CDT]
Last Update Date: 09/21/2005
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(i) - PLANT S/D REQD BY TS
50.72(b)(3)(v)(B) - POT RHR INOP
Person (Organization):
MICHAEL SHANNON (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

Event Text

TECHNICAL SPECIFICATION REQUIRED SHUTDOWN COMMENCED DUE TO INOPERABILITY OF RESIDUAL HEAT REMOVAL CONTAINMENT SUMP ISOLATION VALVES

"At 2240 09/20/2005 an engineering evaluation concluded that the Residual Heat Removal Containment Sump Isolation Valves were inoperable based on their inability to open against a higher differential pressure than had been previously evaluated. Historically Wolf Creek has operated with the Component Cooling Water isolated to the Residual Heat Removal Heat Exchangers. If the pumps started during accident conditions there is a potential that the pump heat generated could cause system pressure to increase to the suction relief valve setting of 450 psig. Testing of the valves has shown that they are capable of opening with 207 psid across the valve.

"Technical Specification 3.0.3 was entered at 2240 9/20/2005 due to the inoperability of both Residual Heat Removal trains. Power reduction was commenced at 2340. Component Cooling Water was aligned to the Residual Heat Removal Heat Exchangers at 0004 9/21/2005 restoring operability of the Residual Heat Removal trains. At 0017 9/21/2005 actions were commenced to restore power to 100%.

"This event is reportable under 10 CFR50.72(b)(2)(i) Technical Specification required shut down (4 hour) and 10 CFR50.72(b)(3)(v)(B) Event or Condition that could have prevented fulfillment of a Safety Function (8 hour).

"The NRC Resident has been contacted."

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Power Reactor Event Number: 42005
Facility: NINE MILE POINT
Region: 1 State: NY
Unit: [1] [ ] [ ]
RX Type: [1] GE-2,[2] GE-5
NRC Notified By: BRETT BOISMENU
HQ OPS Officer: MIKE RIPLEY
Notification Date: 09/21/2005
Notification Time: 15:57 [ET]
Event Date: 09/21/2005
Event Time: 08:30 [EDT]
Last Update Date: 09/21/2005
Emergency Class: NON EMERGENCY
10 CFR Section:
26.73 - FITNESS FOR DUTY
Person (Organization):
JOHN WHITE (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

Event Text

FITNESS FOR DUTY

A licensed operator had a confirmed positive for drugs during a random fitness-for-duty test. The employee's access to the plant has been terminated. Contact the Headquarters Operations Officer for additional details.

The licensee notified the NRC Resident Inspector.

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Power Reactor Event Number: 42006
Facility: FT CALHOUN
Region: 4 State: NE
Unit: [1] [ ] [ ]
RX Type: [1] CE
NRC Notified By: KEVIN R. BOSTON
HQ OPS Officer: STEVE SANDIN
Notification Date: 09/22/2005
Notification Time: 00:50 [ET]
Event Date: 09/21/2005
Event Time: 18:22 [CDT]
Last Update Date: 09/22/2005
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
Person (Organization):
MICHAEL SHANNON (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

Event Text

PARTIAL LOSS OF EMERGENCY SIREN CAPABILITY IN HARRISON COUNTY IOWA DUE TO A TRANSFORMER FIRE

"Fort Calhoun Station was informed that 6 of the 18 emergency sirens located in Harrison County Iowa were rendered inoperable due to a fire affecting a transformer. Harrison County Sheriff department implemented the alternate notification method. Local utility responding to restore power anticipates a 4 hour outage duration. Power was reported to be restored at 2208 CST. Sirens will be verified on Thursday September 22, 2005."

There was no indication of malevolent intent reported with respect to the cause of the fire. The licensee informed local authorities and the NRC Resident Inspector.

Page Last Reviewed/Updated Friday, March 30, 2012
Friday, March 30, 2012