Event Notification Report for February 13, 2016
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
02/12/2016 - 02/13/2016
Power Reactor
Event Number: 51732
Facility: CLINTON
Region: 3 State: IL
Unit: [1] [] []
RX Type: [1] GE-6
NRC Notified By: RANDALL MOORE
HQ OPS Officer: JOHN SHOEMAKER
Region: 3 State: IL
Unit: [1] [] []
RX Type: [1] GE-6
NRC Notified By: RANDALL MOORE
HQ OPS Officer: JOHN SHOEMAKER
Notification Date: 02/13/2016
Notification Time: 09:09 [ET]
Event Date: 02/13/2016
Event Time: 02:06 [CST]
Last Update Date: 02/13/2016
Notification Time: 09:09 [ET]
Event Date: 02/13/2016
Event Time: 02:06 [CST]
Last Update Date: 02/13/2016
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(v)(C) - POT UNCNTRL RAD REL
10 CFR Section:
50.72(b)(3)(v)(C) - POT UNCNTRL RAD REL
Person (Organization):
ROBERT ORLIKOWSKI (R3DO)
ROBERT ORLIKOWSKI (R3DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 99 | Power Operation | 99 | Power Operation |
SECONDARY CONTAINMENT INOPERABLE
"On 02/13/2016 at 0206 CST, an unexpected trip of a Fuel Building ventilation exhaust fan occurred and secondary containment differential pressure became positive. Secondary containment was declared INOPERABLE when Technical Specification-required differential pressure was not being maintained and entered LCO 3.6.4.1 Action A.1
"At 0256 (CST), the standby gas treatment system was started and secondary containment differential pressure was restored to Technical Specification requirements at 0257 CST.
"This loss of secondary containment is reportable under 10 CFR 50.72(b)(3)(v)(C) as an event or condition that could have prevented fulfillment of a safety function needed to control the release of radioactive material.
"The cause of the fuel building exhaust fan trip is unknown at this time. The NRC Resident Inspector has been notified."
"On 02/13/2016 at 0206 CST, an unexpected trip of a Fuel Building ventilation exhaust fan occurred and secondary containment differential pressure became positive. Secondary containment was declared INOPERABLE when Technical Specification-required differential pressure was not being maintained and entered LCO 3.6.4.1 Action A.1
"At 0256 (CST), the standby gas treatment system was started and secondary containment differential pressure was restored to Technical Specification requirements at 0257 CST.
"This loss of secondary containment is reportable under 10 CFR 50.72(b)(3)(v)(C) as an event or condition that could have prevented fulfillment of a safety function needed to control the release of radioactive material.
"The cause of the fuel building exhaust fan trip is unknown at this time. The NRC Resident Inspector has been notified."
Power Reactor
Event Number: 51733
Facility: COLUMBIA GENERATING STATION
Region: 4 State: WA
Unit: [2] [] []
RX Type: [2] GE-5
NRC Notified By: BILL HART
HQ OPS Officer: DONALD NORWOOD
Region: 4 State: WA
Unit: [2] [] []
RX Type: [2] GE-5
NRC Notified By: BILL HART
HQ OPS Officer: DONALD NORWOOD
Notification Date: 02/13/2016
Notification Time: 14:45 [ET]
Event Date: 02/13/2016
Event Time: 10:00 [PST]
Last Update Date: 02/13/2016
Notification Time: 14:45 [ET]
Event Date: 02/13/2016
Event Time: 10:00 [PST]
Last Update Date: 02/13/2016
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):
NEIL OKEEFE (R4DO)
NEIL OKEEFE (R4DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | N | Y | 75 | Power Operation | 75 | Power Operation |
RADWASTE BUILDING NOBLE GAS MONITOR OUT-OF-SERVICE
"On 2/10/2016 at 1000 PST, Columbia entered a planned evolution to perform channel functional tests on the RadWaste Building noble gas monitor (WEA-RIS-14). Compensatory measures were implemented per station procedures. The station is experiencing equipment issues and the monitor has not been restored within 72 hours (2/13/2016 at 1000 PST) from the start of the outage. The extended outage of this radiological monitoring instrument is, therefore, being reported as a major loss of radiological assessment capability in accordance with regulation 10 CFR 50.72(b)(3)(xiii).
"Compensatory measures will remain in place until the WEA instrument is restored.
"The NRC Resident Inspector has been notified.
"Note: Reactor Power is 75 percent due to a planned plant downpower for unrelated scheduled work with a planned return to 100 percent at 1900 PST on 2/14/16."
"On 2/10/2016 at 1000 PST, Columbia entered a planned evolution to perform channel functional tests on the RadWaste Building noble gas monitor (WEA-RIS-14). Compensatory measures were implemented per station procedures. The station is experiencing equipment issues and the monitor has not been restored within 72 hours (2/13/2016 at 1000 PST) from the start of the outage. The extended outage of this radiological monitoring instrument is, therefore, being reported as a major loss of radiological assessment capability in accordance with regulation 10 CFR 50.72(b)(3)(xiii).
"Compensatory measures will remain in place until the WEA instrument is restored.
"The NRC Resident Inspector has been notified.
"Note: Reactor Power is 75 percent due to a planned plant downpower for unrelated scheduled work with a planned return to 100 percent at 1900 PST on 2/14/16."