Event Notification Report for March 02, 2019
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
03/01/2019 - 03/02/2019
Power Reactor
Event Number: 53906
Facility: COMANCHE PEAK
Region: 4 State: TX
Unit: [] [2] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: CHRISTOPHER METZ
HQ OPS Officer: DONALD NORWOOD
Region: 4 State: TX
Unit: [] [2] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: CHRISTOPHER METZ
HQ OPS Officer: DONALD NORWOOD
Notification Date: 03/02/2019
Notification Time: 06:12 [ET]
Event Date: 03/02/2019
Event Time: 03:17 [CST]
Last Update Date: 03/02/2019
Notification Time: 06:12 [ET]
Event Date: 03/02/2019
Event Time: 03:17 [CST]
Last Update Date: 03/02/2019
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL 50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL 50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
Person (Organization):
RICK DEESE (R4DO)
RICK DEESE (R4DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | A/R | Y | 100 | Power Operation | 0 | Hot Standby |
REACTOR TRIP DUE TO FEEDWATER ISOLATION VALVE CLOSURE
"At 0317 CST, the Unit 2 Reactor tripped due to Feedwater Isolation Valve (FWIV) 2-04 going closed. All Auxiliary Feedwater Pumps started due to steam generator Lo-Lo levels.
"Unit 2 is being maintained in Hot Standby (Mode 3) in accordance with Integrated Plant Operating Procedure IPO-007B. The Emergency Response Guideline Procedure Network has been exited. Decay heat is being rejected to the Main Condenser via the Steam Dump Valves.
"The cause of the FWIV going closed is currently under investigation."
All control rods fully inserted and the reactor trip was uncomplicated. Unit 2 is in a normal post-trip electrical line-up. There was no impact on Unit 1 due to the Unit 2 reactor trip.
The licensee notified the NRC Resident Inspector.
"At 0317 CST, the Unit 2 Reactor tripped due to Feedwater Isolation Valve (FWIV) 2-04 going closed. All Auxiliary Feedwater Pumps started due to steam generator Lo-Lo levels.
"Unit 2 is being maintained in Hot Standby (Mode 3) in accordance with Integrated Plant Operating Procedure IPO-007B. The Emergency Response Guideline Procedure Network has been exited. Decay heat is being rejected to the Main Condenser via the Steam Dump Valves.
"The cause of the FWIV going closed is currently under investigation."
All control rods fully inserted and the reactor trip was uncomplicated. Unit 2 is in a normal post-trip electrical line-up. There was no impact on Unit 1 due to the Unit 2 reactor trip.
The licensee notified the NRC Resident Inspector.
Power Reactor
Event Number: 53908
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: DAVID MOSSER
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: DAVID MOSSER
HQ OPS Officer: JOANNA BRIDGE
Notification Date: 03/03/2019
Notification Time: 00:13 [ET]
Event Date: 03/02/2019
Event Time: 22:37 [EST]
Last Update Date: 03/03/2019
Notification Time: 00:13 [ET]
Event Date: 03/02/2019
Event Time: 22:37 [EST]
Last Update Date: 03/03/2019
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL
Person (Organization):
STEVE ROSE (R2DO)
STEVE ROSE (R2DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | M/R | Y | 12 | Power Operation | 0 | Hot Standby |
MANUAL REACTOR TRIP DUE TO DEGRADING MAIN CONDENSER VACUUM
"On March 2, 2019 at 2237 EST, North Anna Unit 2 reactor was manually tripped, while operating at approximately 12 percent power, due to degrading vacuum in the main condenser. The unit was in the process of a planned shutdown for refueling when condenser vacuum degraded to greater than 3.5 inches of mercury absolute. The operations crew entered the reactor trip procedure and stabilized the unit in Mode 3 at normal operating pressure and temperature.
All control rods fully inserted into the core following the reactor trip. The reactor protection system actuation is reportable per 10 CFR 50.72(b)(2)(iv)(B). There were no ESF system actuations. Decay heat is being removed by the Steam Generator Pressure Operated Relief valves. Unit 2 is in a normal shutdown electrical lineup.
"The NRC Resident Inspectors have been notified. The Louisa County Administrator will be notified."
"On March 2, 2019 at 2237 EST, North Anna Unit 2 reactor was manually tripped, while operating at approximately 12 percent power, due to degrading vacuum in the main condenser. The unit was in the process of a planned shutdown for refueling when condenser vacuum degraded to greater than 3.5 inches of mercury absolute. The operations crew entered the reactor trip procedure and stabilized the unit in Mode 3 at normal operating pressure and temperature.
All control rods fully inserted into the core following the reactor trip. The reactor protection system actuation is reportable per 10 CFR 50.72(b)(2)(iv)(B). There were no ESF system actuations. Decay heat is being removed by the Steam Generator Pressure Operated Relief valves. Unit 2 is in a normal shutdown electrical lineup.
"The NRC Resident Inspectors have been notified. The Louisa County Administrator will be notified."
Agreement State
Event Number: 53907
Rep Org: NC DIV OF RADIATION PROTECTION
Licensee: JANX
Region: 1
City: GRAYSBURG State: NC
County:
License #: 1117-2
Agreement: Y
Docket:
NRC Notified By: TRAVIS CARTOSKI
HQ OPS Officer: JEFF HERRERA
Licensee: JANX
Region: 1
City: GRAYSBURG State: NC
County:
License #: 1117-2
Agreement: Y
Docket:
NRC Notified By: TRAVIS CARTOSKI
HQ OPS Officer: JEFF HERRERA
Notification Date: 03/02/2019
Notification Time: 21:02 [ET]
Event Date: 03/02/2019
Event Time: 00:00 [EST]
Last Update Date: 03/02/2019
Notification Time: 21:02 [ET]
Event Date: 03/02/2019
Event Time: 00:00 [EST]
Last Update Date: 03/02/2019
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
10 CFR Section:
AGREEMENT STATE
Person (Organization):
DAVE WERKHEISER (R1DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
ILTAB (EMAIL)
DAVE WERKHEISER (R1DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
ILTAB (EMAIL)
AGREEMENT STATE REPORT - RADIOGRAPHY DEVICE LEFT UNSECURED
The following report was received from the North Carolina Division of Health Service Regulation, Radioactive Materials Branch via email:
"Licensee reports that an Industrial Radiography [IR] exposure device was unaccounted for during the 15 hours following work site activities on March 1st. The IR device was left unsecured the entire time until discovered the morning of March 2nd by the radiography crew that left it. The device [Spec 150; S/N: 1251] and source [72 Ci Ir-192; Model: G-60; S/N: AA0805] are secured and in possession of the corporate RSO [Radiation Safety Officer] at the time of this report. North Carolina Radioactive Materials Branch has initiated an investigation and will update this report for completion."
NC Event Tracking ID: 190008
THIS MATERIAL EVENT CONTAINS A "CATEGORY 2" LEVEL OF RADIOACTIVE MATERIAL
Category 2 sources, if not safely managed or securely protected, could cause permanent injury to a person who handled them, or were otherwise in contact with them, for a short time (minutes to hours). It could possibly be fatal to be close to this amount of unshielded radioactive material for a period of hours to days. These sources are typically used in practices such as industrial gamma radiography, high dose rate brachytherapy and medium dose rate brachytherapy. For additional information go to http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf
The following report was received from the North Carolina Division of Health Service Regulation, Radioactive Materials Branch via email:
"Licensee reports that an Industrial Radiography [IR] exposure device was unaccounted for during the 15 hours following work site activities on March 1st. The IR device was left unsecured the entire time until discovered the morning of March 2nd by the radiography crew that left it. The device [Spec 150; S/N: 1251] and source [72 Ci Ir-192; Model: G-60; S/N: AA0805] are secured and in possession of the corporate RSO [Radiation Safety Officer] at the time of this report. North Carolina Radioactive Materials Branch has initiated an investigation and will update this report for completion."
NC Event Tracking ID: 190008
THIS MATERIAL EVENT CONTAINS A "CATEGORY 2" LEVEL OF RADIOACTIVE MATERIAL
Category 2 sources, if not safely managed or securely protected, could cause permanent injury to a person who handled them, or were otherwise in contact with them, for a short time (minutes to hours). It could possibly be fatal to be close to this amount of unshielded radioactive material for a period of hours to days. These sources are typically used in practices such as industrial gamma radiography, high dose rate brachytherapy and medium dose rate brachytherapy. For additional information go to http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf