Event Notification Report for March 03, 2019
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
03/02/2019 - 03/03/2019
Power Reactor
Event Number: 54309
Facility: PALO VERDE
Region: 4 State: AZ
Unit: [1] [2] [3]
RX Type: [1] CE,[2] CE,[3] CE
NRC Notified By: LORRAINE WEAVER
HQ OPS Officer: JEFF HERRERA
Region: 4 State: AZ
Unit: [1] [2] [3]
RX Type: [1] CE,[2] CE,[3] CE
NRC Notified By: LORRAINE WEAVER
HQ OPS Officer: JEFF HERRERA
Notification Date: 10/04/2019
Notification Time: 15:45 [ET]
Event Date: 03/03/2019
Event Time: 00:00 [MST]
Last Update Date: 10/04/2019
Notification Time: 15:45 [ET]
Event Date: 03/03/2019
Event Time: 00:00 [MST]
Last Update Date: 10/04/2019
Emergency Class: NON EMERGENCY
10 CFR Section:
21.21(d)(3)(i) - DEFECTS AND NONCOMPLIANCE
10 CFR Section:
21.21(d)(3)(i) - DEFECTS AND NONCOMPLIANCE
Person (Organization):
DAVID PROULX (R4DO)
- PART 21/50.55 REACTORS (EMAIL)
DAVID PROULX (R4DO)
- PART 21/50.55 REACTORS (EMAIL)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
| 2 | N | Y | 100 | Power Operation | 100 | Power Operation |
| 3 | N | Y | 97 | Power Operation | 97 | Power Operation |
PART 21 - GE HITACHI PRIMARY CONTACT FINGER SURFACE DEFECT
"On March 3, 2019, during overhaul activities of the medium voltage power (Magne-blast) circuit breakers, three General Electric Hitachi (GEH) Stationary Primary Contact Fingers Q0114C5382P002 were identified as having contact surfaces with a finish that was rough and unlike the typically smooth finish provided on electrical contact surfaces. These Stationary Primary Contact Fingers are the primary current carrying device for the circuit breaker.
"On October 1, 2019, Arizona Public Service Company (APS) completed an evaluation of a deviation, and concluded the condition represented a defect under 10 CFR 21.
"On October 4, 2019, the Palo Verde Nuclear Generating Station Vice President, Nuclear Engineering, was notified of a defect of GEH Stationary Primary Contact Fingers which met the reporting criteria of 10 CFR 21.21.
"There are no medium voltage power (Magne-blast) circuit breakers with stationary primary contact fingers impacted by this condition installed in the plant. APS concluded this condition, if installed, could result in the breaker failing to perform its safety function and thus could create a substantial safety hazard.
"The NRC resident inspector has been informed."
"On March 3, 2019, during overhaul activities of the medium voltage power (Magne-blast) circuit breakers, three General Electric Hitachi (GEH) Stationary Primary Contact Fingers Q0114C5382P002 were identified as having contact surfaces with a finish that was rough and unlike the typically smooth finish provided on electrical contact surfaces. These Stationary Primary Contact Fingers are the primary current carrying device for the circuit breaker.
"On October 1, 2019, Arizona Public Service Company (APS) completed an evaluation of a deviation, and concluded the condition represented a defect under 10 CFR 21.
"On October 4, 2019, the Palo Verde Nuclear Generating Station Vice President, Nuclear Engineering, was notified of a defect of GEH Stationary Primary Contact Fingers which met the reporting criteria of 10 CFR 21.21.
"There are no medium voltage power (Magne-blast) circuit breakers with stationary primary contact fingers impacted by this condition installed in the plant. APS concluded this condition, if installed, could result in the breaker failing to perform its safety function and thus could create a substantial safety hazard.
"The NRC resident inspector has been informed."
Power Reactor
Event Number: 53909
Facility: NORTH ANNA
Region: 2 State: VA
Unit: [] [2] []
RX Type: [1] W-3-LP,[2] W-3-LP,[3] M-4-LP
NRC Notified By: JOHN A LEAKE
HQ OPS Officer: JOANNA BRIDGE
Region: 2 State: VA
Unit: [] [2] []
RX Type: [1] W-3-LP,[2] W-3-LP,[3] M-4-LP
NRC Notified By: JOHN A LEAKE
HQ OPS Officer: JOANNA BRIDGE
Notification Date: 03/03/2019
Notification Time: 09:54 [ET]
Event Date: 03/03/2019
Event Time: 09:16 [EST]
Last Update Date: 03/03/2019
Notification Time: 09:54 [ET]
Event Date: 03/03/2019
Event Time: 09:16 [EST]
Last Update Date: 03/03/2019
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):
STEVE ROSE (R2DO)
JEFFERY GRANT (IRD)
CATHY HANEY (R2RA)
MICHELE EVANS (DNRR)
BRIAN McDERMOTT (DNRR)
STEVE ROSE (R2DO)
JEFFERY GRANT (IRD)
CATHY HANEY (R2RA)
MICHELE EVANS (DNRR)
BRIAN McDERMOTT (DNRR)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | N | N | 0 | Hot Standby | 0 | Hot Standby |
NOTICE OF UNUSUAL EVENT DUE TO UNCONFIRMED FIRE ALARM
At 0916 EST on March 3, 2019, North Anna Unit 2 declared a Notice of Unusual Event under Emergency Action Level HU 2.1 (fire in/or restricting access to any table H-1 area not extinguished within 15 minutes of control room notification or verification of a control room alarm). At 0906 the control room received a heat sensor alarm for the Unit 2, Reactor Coolant Pump motor cube. The fire brigade was dispatched to the scene where they found no indication of fire, no smoke and no fire damage. There were no actuations associated with the alarm and no redundant indications of fire. There was no effect on plant equipment and no indications of RCS leaks. The site determined that the alarm was invalid and terminated the NOUE. Unit 2 is in a stable condition and in a normal electrical lineup. Offsite support was not requested.
The NRC Resident Inspector, State, and local authorities have been notified by the licensee.
Notified R2RA (Haney), DNRR (Evans), IRD MOC (Grant), R4RDO (Rose), DHS SWO, FEMA Operations Center, DHS NICC, FEMA NWC (email), DHS Nuclear SSA (email), and FEMA NRCC SASC (email).
At 0916 EST on March 3, 2019, North Anna Unit 2 declared a Notice of Unusual Event under Emergency Action Level HU 2.1 (fire in/or restricting access to any table H-1 area not extinguished within 15 minutes of control room notification or verification of a control room alarm). At 0906 the control room received a heat sensor alarm for the Unit 2, Reactor Coolant Pump motor cube. The fire brigade was dispatched to the scene where they found no indication of fire, no smoke and no fire damage. There were no actuations associated with the alarm and no redundant indications of fire. There was no effect on plant equipment and no indications of RCS leaks. The site determined that the alarm was invalid and terminated the NOUE. Unit 2 is in a stable condition and in a normal electrical lineup. Offsite support was not requested.
The NRC Resident Inspector, State, and local authorities have been notified by the licensee.
Notified R2RA (Haney), DNRR (Evans), IRD MOC (Grant), R4RDO (Rose), DHS SWO, FEMA Operations Center, DHS NICC, FEMA NWC (email), DHS Nuclear SSA (email), and FEMA NRCC SASC (email).