| U.S. Nuclear Regulatory Commission
Operations Center Event Reports For
11/20/2015 - 11/23/2015 ** EVENT NUMBERS ** |
 | !!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!! | | Power Reactor | Event Number: 51440 | Facility: FERMI
Region: 3 State: MI
Unit: [2] [ ] [ ]
RX Type: [2] GE-4
NRC Notified By: CHRIS ROBINSON
HQ OPS Officer: MARK ABRAMOVITZ | Notification Date: 10/02/2015
Notification Time: 14:50 [ET]
Event Date: 10/02/2015
Event Time: 08:25 [EDT]
Last Update Date: 11/20/2015 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(ii)(B) - UNANALYZED CONDITION
50.72(b)(3)(v)(A) - POT UNABLE TO SAFE SD
| Person (Organization):
STEVE ORTH (R3DO)
|
| Unit | SCRAM Code | RX CRIT | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode | | 2 | N | N | 0 | Refueling | 0 | Refueling | Event Text LOOSE SAFETY RELIEF VALVE DISCHARGE FLANGE BOLTS
"On October 2nd, at approximately 0825 EDT, maintenance technicians were performing as-found torque checks on the discharge flange of the 'B' Safety Relief Valve (SRV). 12 of the 16 bolts were not adequately torqued. The 'B' Safety Relief Valve is credited for Remote Shutdown. The as-found condition of inadequate torque potentially impacts the seismic qualification of the 'B' SRV.
"An investigation and extent of condition review is ongoing. The NRC Resident Inspector has been notified."
Before the outage, there were no abnormal indications of leakage as indicated by a rise in drywell temperature or pressure. The SRVs had been cycled under pressure with no abnormal indications.
The four bolts that were tight were in a diagonal pattern. The looses bolts were described as "finger tight." The licensee is determining the actions to take regarding the remaining 14 SRVs.
* * * RETRACTION FROM STEVE WARD TO DONALD NORWOOD AT 1552 EST ON 11/20/2015 * * *
"As part of the event investigation and extent of condition review, the as-found torque values of the inlet and outlet Safety Relief Valve (SRV) flange connections were measured and an engineering evaluation of the as-found condition was performed. The evaluation confirmed that all 15 SRVs would have remained operable during a design basis earthquake. Any potential discharge flange connection leakage during SRV operation would be bounded by the design basis Loss of Coolant Accident analysis described in the UFSAR.
"Subsequent investigation activities of the as-found condition of SRV 'B' determined that the four tight bolts were not oriented in a diagonal pattern across the discharge flange as originally reported. This information is provided only to clarify previously reported information and does not affect the original basis for reporting or the current basis for retraction."
The licensee notified the NRC Resident Inspector.
Notified R3DO (McCraw). |
| Agreement State | Event Number: 51531 | Rep Org: CALIFORNIA RADIATION CONTROL PRGM
Licensee: LOCKHEED MARTIN SPACE SYSTEMS COMPANY, INC
Region: 4
City: PALO ALTO State: CA
County:
License #:
Agreement: Y
Docket:
NRC Notified By: GENE FORRER
HQ OPS Officer: MARK ABRAMOVITZ | Notification Date: 11/12/2015
Notification Time: 13:51 [ET]
Event Date: 10/22/2015
Event Time: [PST]
Last Update Date: 11/12/2015 | Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
| Person (Organization):
VINCENT GADDY (R4DO)
NMSS_EVENTS_NOTIFICA (EMAI)
| Event Text AGREEMENT STATE REPORT - LEAKING NI-63 SOURCES
The following report was received via e-mail:
"On 10/27/15, the RSO [Radiation Safety Officer] contacted RHB [California Radiation Health Branch] via an email to report two Ni-63 leaking sources. On 10/22/15, Thomas Gray and Associates, the vendor contracted to run the leak test analysis had informed the licensee that two of their Ni-63 sources were leaking above the prescribed limit of 0.005 microCuries. These sources were manufactured by New England Nuclear and had an initial activity of 10 mCi as of July 1966. They do not have a S/N, but were assigned internal tag numbers of 55 and 56. Both sources have not been used in any experiments for many years and have remained in storage. As of 10/27/15, both sources had an activity of 7.11 mCi each. They were not found to be leaking or damaged in previous leak tests. [The] RSO further stated that these sources were not removed from its safe or from its container anytime in the last year. As a result, no contamination was spread through the buildings.
"[The] RSO is working with Thomas Gray and Associates to schedule a waste pick up in early 2016 to dispose of these sources."
California Event 5010-102715 |
| Agreement State | Event Number: 51534 | Rep Org: SC DIV OF HEALTH & ENV CONTROL
Licensee: SC DEPARTMENT OF TRANSPORTATION
Region: 1
City: SUMPTER State: SC
County:
License #: 119
Agreement: Y
Docket:
NRC Notified By: LELAND CAVE
HQ OPS Officer: MARK ABRAMOVITZ | Notification Date: 11/12/2015
Notification Time: 18:36 [ET]
Event Date: 11/12/2015
Event Time: [EST]
Last Update Date: 11/12/2015 | Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
| Person (Organization):
FRANK ARNER (R1DO)
NMSS_EVENTS_NOTIFICA (EMAI)
| Event Text AGREEMENT STATE REPORT - DAMAGED MOISTURE DENSITY GAUGE
A Troxler moisture density gauge owned by the South Carolina Department of Transportation was run over and damaged. The Am-241 and Cs-137 sources were retracted at the time of the accident. Surveys by the Radiation Safety Officer were normal. The damaged gauge will be sent to the manufacturer for refurbishment or disposal.
Sources:
Am-241: 40 mCi
Cs-137: 8 mCi |
| Agreement State | Event Number: 51537 | Rep Org: TEXAS DEPT OF STATE HEALTH SERVICES
Licensee: NONDESTRUCTIVE & VISUAL INSPECTION LLC
Region: 4
City: CARTHAGE State: TX
County:
License #: 06162
Agreement: Y
Docket:
NRC Notified By: IRENE CASARES
HQ OPS Officer: MARK ABRAMOVITZ | Notification Date: 11/13/2015
Notification Time: 17:29 [ET]
Event Date: 11/11/2015
Event Time: [CST]
Last Update Date: 11/13/2015 | Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
| Person (Organization):
VINCENT GADDY (R4DO)
NMSS_EVENTS_NOTIFICA (EMAI)
ANGELA MCINTOSH (NMSS)
PAT MILLIGAN (NSIR)
| Event Text AGREEMENT STATE REPORT - RADIOGRAPHER OVERDOSE
The following report was received via e-mail:
"On November 13, 2015, a licensee notified the Agency that one its radiographers had an overexposure. The licensee stated the radiographer cranked out the source and waited the time for the shot, then thought he cranked the source back into the camera. When he went to retrieve the film, the radiographer noticed his survey metered was pegged off scale. He immediately went back to the truck and checked his pocket dosimeter and it was off scale also. He picked up the crank and retracted the source. He checked the area with the survey meter and the radiation level had dropped. He informed his supervisor that night and the corporate radiation safety officer had the radiographers monitoring badge sent off for processing. The badge reading was DDE [Deep Dose Equivalent] of 11,453 mRem and LDE [Lens of the eye Dose Equivalent] 11,494 mRem. The radiographer is being interviewed of the details of the incident and a detailed report will be provided. The radiographer has not had any health effects at this time nor are any expected."
This incident occurred on 11/11/2015 at a job site in Pecos, TX.
Texas Incident: I-9358 |
| Power Reactor | Event Number: 51557 | Facility: NORTH ANNA
Region: 2 State: VA
Unit: [1] [ ] [ ]
RX Type: [1] W-3-LP,[2] W-3-LP,[3] M-4-LP
NRC Notified By: MICHAEL WHALEN
HQ OPS Officer: DONALD NORWOOD | Notification Date: 11/20/2015
Notification Time: 15:34 [ET]
Event Date: 11/20/2015
Event Time: 08:23 [EST]
Last Update Date: 11/22/2015 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
| Person (Organization):
MIKE ERNSTES (R2DO)
|
| 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 INOPERABLE VENT STACK RADIATION MONITOR
"At 0823 EST on 11/17/2015, the Unit 1 'A' Vent Stack radiation monitor, 1-VG-RI-179, was declared non-functional due to a faulty heat trace circuit. Compensatory measure to perform grab samples every 6 hours was implemented. At 0823 EST on 11/20/2015, the Unit 1 'A' Vent Stack radiation monitor, 1-VG-RI-179, had been out-of-service for 72 hours. The loss of 1-VG-RI-179 is being reported per 10 CFR 50.72(b)(3)(xiii) as a loss of emergency assessment capability. Corrective actions continue to be pursued to restore 1-VG-Ri-179 to functional status.
"The NRC Senior Resident Inspector has been notified by the licensee."
* * * UPDATE FROM PATRICK FRENCH TO JOHN SHOEMAKER AT 0931 EST ON 11/22/15 * * *
The Unit 1 'A' Vent Stack radiation monitor, 1-VG-RI-179, was returned to service at 1440 EST on 11/21/15.
The licensee has notified the NRC Resident Inspector.
Notified R2DO (Ernstes). |
| Power Reactor | Event Number: 51558 | Facility: COOPER
Region: 4 State: NE
Unit: [1] [ ] [ ]
RX Type: [1] GE-4
NRC Notified By: FRED SCHIZAS
HQ OPS Officer: VINCE KLCO | Notification Date: 11/20/2015
Notification Time: 21:49 [ET]
Event Date: 11/20/2015
Event Time: 18:08 [CST]
Last Update Date: 11/20/2015 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
| Person (Organization):
GREG WARNICK (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 METEOROLOGICAL TOWER OUT OF SERVICE
"On [11/20/2015 at 1808] CST it was noted that the MET tower (both primary and backup) was offline and not communicating with the Plant Management Information System(PMIS). This results in a major loss of emergency assessment capabilities with respect to meteorological conditions and is reportable under 10CFR50.72(b)(3)(xiii). Communications technicians responded to the plant and the MET Tower communications were restored to PMIS on [11/20/2015 at 1937]."
The licensee notified the NRC Resident Inspector. | |