| U.S. Nuclear Regulatory Commission
Operations Center Event Reports For
8/27/2018 - 8/28/2018 ** EVENT NUMBERS ** |
| Non-Agreement State | Event Number: 53553 | Rep Org: JANX
Licensee: JANX
Region: 3
City: PARMA State: MI
County:
License #: 21-16560-01
Agreement: N
Docket:
NRC Notified By: WILLIAM REEVE
HQ OPS Officer: KENNETH MOTT | Notification Date: 08/17/2018
Notification Time: 20:30 [ET]
Event Date: 08/17/2018
Event Time: 10:15 [EDT]
Last Update Date: 08/17/2018 | Emergency Class: NON EMERGENCY
10 CFR Section:
30.50(b)(2) - SAFETY EQUIPMENT FAILURE
| Person (Organization):
KARLA STOEDTER (R3DO)
NMSS_EVENTS_NOTIFICATION (EMAIL) | Event Text INABILITY TO RETRACT RADIOGRAPHY SOURCE TO SHIELDED POSITION
While the licensee was performing radiography work in Evansville, Indiana, a radiography camera source (SPEC-150; Ir-192; 46 Ci; Source S/N: ZE0316) became disconnected and did not return to the shielded position. The technician called the corporate radiation safety officer (RSO) at 1015 EDT on 8/17/2018, who then drove to the Indiana site. The RSO verified boundaries at the 2mR/hr level. The source was temporarily shielded while camera maintenance was performed. The source was returned to the camera, secured, and properly shielded within the camera. There was no indication of excessive dose. The RSO who retrieved the source received approximately 100 millirem (as indicated on their self-reading dosimeter). |
| Power Reactor | Event Number: 53565 | Facility: NINE MILE POINT
Region: 1 State: NY
Unit: [] [2] []
RX Type: [1] GE-2,[2] GE-5
NRC Notified By: HEATH STICKNEY
HQ OPS Officer: ANDREW WAUGH | Notification Date: 08/27/2018
Notification Time: 03:12 [ET]
Event Date: 08/27/2018
Event Time: 00:33 [EDT]
Last Update Date: 08/28/2018 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL
| Person (Organization):
DONNA JANDA (R1DO) | | Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode | | 2 | A/R | Y | 100 | Power Operation | 0 | Hot Shutdown | Event Text AUTOMATIC SCRAM DUE TO A GENERATOR TRIP
"At 0033 EDT Nine Mile Point Unit 2 experienced an automatic scram on high reactor pressure due to a turbine trip. The cause of the turbine trip was due to a generator trip. All control rods inserted. There were no safety system actuations. The cause of the generator trip is being investigated.
"This is a 4-Hour report for 10CFR50.72(b)(2)(iv)(B) RPS Actuation.
"The NRC Resident Inspector has been notified."
Decay heat is being removed via the main condenser. Reactor vessel water level is being maintained by the condensate and feedwater systems.
The licensee will be notifying the state of New York.
* * * UPDATE FROM DANIEL CIFONELLI TO HOWIE CROUCH AT 1653 EDT ON 8/28/18 * * *
After further review, the licensee has determined that the cause of the automatic scram was due to turbine control valve fast closure as a result of the turbine trip, not high reactor pressure, as originally reported.
The licensee has notified the NRC Resident Inspector.
Notified R1DO (Lilliendahl). |
| Power Reactor | Event Number: 53566 | Facility: GRAND GULF
Region: 4 State: MS
Unit: [1] [] []
RX Type: [1] GE-6
NRC Notified By: JAY COMFORT
HQ OPS Officer: BRIAN LIN | Notification Date: 08/27/2018
Notification Time: 13:15 [ET]
Event Date: 08/27/2018
Event Time: 09:18 [CDT]
Last Update Date: 08/27/2018 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(xi) - OFFSITE NOTIFICATION
| Person (Organization):
NICK TAYLOR (R4DO) | | 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 OFFSITE NOTIFICATION
"On 27 August 2018 at 0918 CDT Grand Gulf Control Room was informed that the onsite credit union silent alarm was actuated. The credit union is located outside of the Secure Owner Controlled Area (SOCA), but is located within the Owner Controlled Area.
"GGNS [Grand Gulf Nuclear Station] Security entered an elevated security position at 0920 [CDT] and requested assistance from local law enforcement. Claiborne County Sheriff's Department responded to the site. Investigation of the area conducted with the assistance of GGNS Security personnel determined that the cause of the notification was not valid. GGNS Security stood down from the elevated security positon at 0945 [CDT].
"Pursuant to 10 CFR 50.72(b)(2)(xi), this issue is being reported as any event or situation, related to the health and safety of the public or on-site personnel, or protection of the environment, for which a news release is planned or notification to other government agencies has been or will be made." |
| Part 21 | Event Number: 53570 | Rep Org: CURTISS WRIGHT NUCLEAR DIVISION
Licensee: SENASYS
Region: 3
City: CINCINNATI State: OH
County:
License #:
Agreement: Y
Docket:
NRC Notified By: TIM FRANCHUK
HQ OPS Officer: HOWIE CROUCH | Notification Date: 08/28/2018
Notification Time: 13:41 [ET]
Event Date: 06/25/2018
Event Time: 00:00 [EDT]
Last Update Date: 08/28/2018 | Emergency Class: NON EMERGENCY
10 CFR Section:
21.21(d)(3)(i) - DEFECTS AND NONCOMPLIANCE
| Person (Organization):
RICHARD SKOKOWSKI (R3DO)
- PART 21/50.55 REACTORS (EMAIL)
JON LILLIENDAHL (R1DO) | Event Text PART 21 NOTIFICATION - SELECTOR SWITCH SHORTED DUE TO INCORRECT HARDWARE
The following information is summarized and was obtained from Curtiss-Wright via fax:
"Curtiss-Wright was notified by Exelon Calvert Cliffs Plant that a Senasys selector switch P/N 910CMC-5240X (previously provided by Curtiss-Wright under Exelon purchase order 00630804), had failed a post-installation test. Calvert Cliffs sent the suspect switch to Exelon Powerlabs where the failure was found to have been caused by an assembly screw that was 1/8 inch too long, allowing it to cut into the coil of the switch, causing an electrical short. Correspondence between Exelon and the manufacturer determined that an inventory error had occurred.
"According to [Curtiss-Wright] records, only one customer and one plant received these defective switches. Exelon Generation's Calvert Cliffs received 5 switches on Exelon PO number 00630804 Rev. 2. Exelon Calvert Cliffs has been notified of this issue.
"Curtiss Wright's dedication plan will be revised to include a note to ensure no selector switches, for this part number, are manufactured with the November and December 2017 date codes.
"If you have any questions pertaining to this information, please contact Timothy Franchuk, Director of Quality Assurance, at 513-201-2176" | |