Event Notification Report for January 06, 2018
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
01/05/2018 - 01/06/2018
Power Reactor
Event Number: 53153
Facility: OYSTER CREEK
Region: 1 State: NJ
Unit: [1] [] []
RX Type: [1] GE-2
NRC Notified By: JAMES RITCHIE
HQ OPS Officer: VINCE KLCO
Region: 1 State: NJ
Unit: [1] [] []
RX Type: [1] GE-2
NRC Notified By: JAMES RITCHIE
HQ OPS Officer: VINCE KLCO
Notification Date: 01/06/2018
Notification Time: 06:05 [ET]
Event Date: 01/06/2018
Event Time: 05:24 [EST]
Last Update Date: 01/06/2018
Notification Time: 06:05 [ET]
Event Date: 01/06/2018
Event Time: 05:24 [EST]
Last Update Date: 01/06/2018
Emergency Class: UNUSUAL EVENT
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED
Person (Organization):
DAVE WERKHEISER (R1DO)
BRIAN HOLIAN (NRR)
DAVID LEW (R1RA)
WILLIAM GOTT (IRD)
DAVE WERKHEISER (R1DO)
BRIAN HOLIAN (NRR)
DAVID LEW (R1RA)
WILLIAM GOTT (IRD)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 70 | Power Operation |
DECLARATION OF UNUSUAL EVENT DUE TO ABNORMAL INTAKE STRUCTURE LEVEL
"Oyster Creek Declared an Unusual Event HU 6 Hazardous Event for an Abnormal Intake Structure Level Less than or equal to -3.0 feet MSL [Mean Sea Level] on points 23 and 24 in the Main Control Room at time 0524 [EST]."
The licensee notified the NRC Resident Inspector, State, and local authorities.
Notified DHS SWO, FEMA Operations Center, DHS NICC, FEMA NWC (email), DHS Nuclear SSA (email), and FEMA NRCC SASC (email).
* * * UPDATE ON 1/6/18 AT 2325 EST FROM JAMES RITCHIE TO BETHANY CECERE * * *
"Oyster Creek Terminated Unusual Event HU 6 Hazardous Event for an Abnormal Intake Structure Level at time 2308 [EST]."
The licensee notified the NRC Resident Inspector, State, and local authorities.
Notified R1DO (Werkheiser), NRR EO (King), IRD MOC (Gott), DHS SWO, FEMA Operations Center, DHS NICC, FEMA NWC (email), DHS Nuclear SSA (email), and FEMA NRCC SASC (email).
"Oyster Creek Declared an Unusual Event HU 6 Hazardous Event for an Abnormal Intake Structure Level Less than or equal to -3.0 feet MSL [Mean Sea Level] on points 23 and 24 in the Main Control Room at time 0524 [EST]."
The licensee notified the NRC Resident Inspector, State, and local authorities.
Notified DHS SWO, FEMA Operations Center, DHS NICC, FEMA NWC (email), DHS Nuclear SSA (email), and FEMA NRCC SASC (email).
* * * UPDATE ON 1/6/18 AT 2325 EST FROM JAMES RITCHIE TO BETHANY CECERE * * *
"Oyster Creek Terminated Unusual Event HU 6 Hazardous Event for an Abnormal Intake Structure Level at time 2308 [EST]."
The licensee notified the NRC Resident Inspector, State, and local authorities.
Notified R1DO (Werkheiser), NRR EO (King), IRD MOC (Gott), DHS SWO, FEMA Operations Center, DHS NICC, FEMA NWC (email), DHS Nuclear SSA (email), and FEMA NRCC SASC (email).
Power Reactor
Event Number: 53154
Facility: COMANCHE PEAK
Region: 4 State: TX
Unit: [] [2] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: LAUREN NEUBURGER
HQ OPS Officer: DAVID AIRD
Region: 4 State: TX
Unit: [] [2] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: LAUREN NEUBURGER
HQ OPS Officer: DAVID AIRD
Notification Date: 01/06/2018
Notification Time: 18:14 [ET]
Event Date: 01/06/2018
Event Time: 11:26 [CST]
Last Update Date: 01/06/2018
Notification Time: 18:14 [ET]
Event Date: 01/06/2018
Event Time: 11:26 [CST]
Last Update Date: 01/06/2018
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):
JAMES DRAKE (R4DO)
JAMES DRAKE (R4DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | N | Y | 100 | Power Operation | 100 | Power Operation |
MAIN STEAM LINE RADIATION MONITOR DETERMINED TO BE NON-FUNCTIONAL
"At 1126 [CST], main steamline radiation monitor 2-RE-2326 (Main Steamline 2-02) reading was determined to be erratic and was declared non-functional.
"With this radiation monitor non-functional, all of the emergency action levels for a steam generator tube rupture in steam generator 2-02 could neither be evaluated nor monitored. This unplanned condition is reportable as a loss of assessment capability per 10 CFR 50.72(b)(3)(xiii).
"Comanche Peak Nuclear Power Plant [CPNPP] has assurance of steam generator integrity and fuel cladding integrity and there is a negligible safety significance to the current condition from a public health and safety perspective.
"Additionally, compensatory measures are in place to assure adequate monitoring capability is available to implement the CPNPP emergency plan in the unlikely event of challenges to the steam generator or fuel cladding. The N16 [Nitrogen-16] radiation monitor serves as a backup with alarm function and Radiation Protection technicians have been briefed on taking local readings with a Geiger-Mueller tube on MSL [Main Steam Line] 2-02.
"Corrective actions are being pursued to restore 2-RE-2326 to functional status.
"The NRC Resident Inspector has been notified."
"At 1126 [CST], main steamline radiation monitor 2-RE-2326 (Main Steamline 2-02) reading was determined to be erratic and was declared non-functional.
"With this radiation monitor non-functional, all of the emergency action levels for a steam generator tube rupture in steam generator 2-02 could neither be evaluated nor monitored. This unplanned condition is reportable as a loss of assessment capability per 10 CFR 50.72(b)(3)(xiii).
"Comanche Peak Nuclear Power Plant [CPNPP] has assurance of steam generator integrity and fuel cladding integrity and there is a negligible safety significance to the current condition from a public health and safety perspective.
"Additionally, compensatory measures are in place to assure adequate monitoring capability is available to implement the CPNPP emergency plan in the unlikely event of challenges to the steam generator or fuel cladding. The N16 [Nitrogen-16] radiation monitor serves as a backup with alarm function and Radiation Protection technicians have been briefed on taking local readings with a Geiger-Mueller tube on MSL [Main Steam Line] 2-02.
"Corrective actions are being pursued to restore 2-RE-2326 to functional status.
"The NRC Resident Inspector has been notified."