| U.S. Nuclear Regulatory Commission
Operations Center Event Reports For
08/18/2015 - 08/19/2015 ** EVENT NUMBERS ** |
 | !!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!! | | Power Reactor | Event Number: 51240 | Facility: COOPER
Region: 4 State: NE
Unit: [1] [ ] [ ]
RX Type: [1] GE-4
NRC Notified By: STEVE WHEELER
HQ OPS Officer: DONALD NORWOOD | Notification Date: 07/18/2015
Notification Time: 18:39 [ET]
Event Date: 07/18/2015
Event Time: 12:14 [CDT]
Last Update Date: 08/18/2015 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(v)(C) - POT UNCNTRL RAD REL
50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
| Person (Organization):
VINCENT GADDY (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 STANDBY GAS TREATMENT SYSTEM DECLARED INOPERABLE DUE TO INOPERABLE SUMP PUMPS
"At 1214 CDT on 7/18/2015, during normal surveillance testing of Z sump, Z2 sump pump run time was found to exceed its upper Augmented IST limit, rendering it non-functional. Operators continued with the surveillance, opening the power supply breaker to Z1 sump pump, rendering it non-functional also. When this was identified, station personnel backed out of testing and restored power to Z1 sump pump. Z sump functions to limit condensation buildup in the common Standby Gas Treatment System (SGT) discharge line to support SGT operability. One sump pump is required to be functional to support SGT operability. With both Z sump pumps non-functional, operability of both trains of SGT is not assured. Loss of both trains of SGT constitutes a loss of safety function for control of rad release and accident mitigation per 10 CFR 50.72(b)(3)(v) functions (C) and (D).
"The breaker for Z1 sump pump was reclosed at 1225 CDT, restoring functionality to Z1 sump pump and operability to both trains of SGT. Both Z sump pumps were considered non-functional and unable to support SGT operability for a period of 11 minutes."
The licensee notified the NRC Resident Inspector.
* * * RETRACTION ON 8/18/2015 AT 1347 EDT FROM DAVID VAN DER KAMP TO MARK ABRAMOVITZ * * *
"Cooper Nuclear Station (CNS) is retracting the 8-hour non-emergency notification made on July 18, 2015 at 1839 EDT (EN# 51240).
"The notification on July 18, 2015 reported a condition where the two Z Sump Pumps were considered non-functional and unable to support the operability of the Standby Gas Treatment System (SGT).
"Subsequent evaluation concluded that Z2 Sump Pump was functional with the run time identified and would have supported the operability of SGT during the time the Z1 Sump Pump breaker was open for surveillance testing. A loss of safety function did not exist. A modification had been previously installed at CNS that prevents the buildup of significant amounts of water in a hold-up line. This volume of water was the basis for the original Z Sump Pump IST [in-service-testing] run times. With the buildup of water previously resolved, the calculated Z Sump Pump IST run times are much longer than measured on July 18, 2015."
Notified the R4DO (Hagar). |
| Agreement State | Event Number: 51304 | Rep Org: TEXAS DEPT OF STATE HEALTH SERVICES
Licensee: ELEMENT MATERIALS TECHNOLOGY HOUSTON INC
Region: 4
City: HOUSTON State: TX
County:
License #: L06451
Agreement: Y
Docket:
NRC Notified By: IRENE CASARES
HQ OPS Officer: JEFF ROTTON | Notification Date: 08/10/2015
Notification Time: 14:51 [ET]
Event Date: 08/10/2015
Event Time: [CDT]
Last Update Date: 08/10/2015 | Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
| Person (Organization):
BOB HAGAR (R4DO)
NMSS_EVENTS_NOTIFIC (EMAI)
| Event Text TEXAS AGREEMENT STATE REPORT - RADIOGRAPHY SOURCE DISCONNECT
The following information was received via email from the State of Texas:
"On August 10, 2015, the licensee's radiation safety officer [RSO] reported to our Agency [State of Texas Department of State Health Services] that a source was not able to retract into a radiography camera [at a temporary job site in Houston]. The RSO responded to the job site and checked the equipment. The RSO found the drive cable had broken. The RSO replaced the crank out control mechanism and retracted the source. The new crank mechanism was checked and the source was easily extended and retracted as normal. The camera was placed back into service. The RSO will be providing a detailed report on the cause of the break. Camera specifics were QSA model: Delta 880, serial number: D8509 with source serial 17604G, model A424-9, Ir-192 at 44 curies. Updates to be provided in accordance with SA300."
Texas Incident #: I-9331 |
| Non-Agreement State | Event Number: 51305 | Rep Org: WEAVER CONSULTANTS GROUP
Licensee: WEAVER CONSULTANTS GROUP
Region: 3
City: GRAND RAPIDS State: MI
County:
License #: 21-32761-01
Agreement: N
Docket:
NRC Notified By: JEFF BLUM
HQ OPS Officer: JOHN SHOEMAKER | Notification Date: 08/10/2015
Notification Time: 16:46 [ET]
Event Date: 08/10/2015
Event Time: [EDT]
Last Update Date: 08/10/2015 | Emergency Class: NON EMERGENCY
10 CFR Section:
30.50(b)(2) - SAFETY EQUIPMENT FAILURE
| Person (Organization):
ROBERT ORLIKOWSKI (R3DO)
NMSS_EVENTS_NOTIFIC (EMAI)
| Event Text DAMAGED TROXLER MOISTURE DENSITY GAUGE
"After completing 17 moisture density gauge readings on the southern half of the West Slope of Clinton County landfill, the Troxler (Model: 3440, Serial # 39264) portable nuclear density gauge owned by [the licensee] was placed on the ground behind a Ford F150 pick up truck owned by [the licensee]. [The gauge operator] sat at the back of the truck reviewing the field sheets of moisture density readings and preparing for the next group of readings. When it was clear that additional blank forms were needed, [the gauge operator] went to the cab of the truck to look for the additional forms. No forms were available so the truck was started and backed up to go to the field office to retrieve the forms.
"After backing and going forward a few feet, [the gauge operator] remembered the moisture density gauge behind the truck. The truck was backed up beside its original location and the damaged gauge was observed. [The gauge operator], got out of the truck to see the plastic casing of the gauge broken in several pieces. The source rod was still in the shielding but the guide rod was broken.
"[The gauge operator] was the only person on that portion of the jobsite at the time of the incident and received no exposure from the source as it was still contained in the shielding. The closest other person to the area was more than a thousand feet away at the time of the incident.
"The gauge and broken plastic housing was placed into its transportation box after confirmation of intact sources. The area of the incident was cordoned with orange paint for containment purposes. The licensee's radiation safety officer [RSO], was notified of the incident and the gauge was photographed and photos were sent to him.
"The RSO mobilized to the site with a SE International radiation meter to survey the cordoned area of the incident as well to verify that sources were intact in the portable nuclear density gauge. Survey results indicated that both sources, Cs-137 and Am-241:Be were intact and undamaged."
The gauge is a Model 3440 Troxler Moisture Density gauge, serial #39264, with Cs-137 8 mCi, serial #77-6741 and Am/Be 241 40 mCi sources, serial #78-4049.
The licensee has temporarily stored the gauge in a secure location and will transport the gauge back to the company office, in Michigan, for repair. |
| Agreement State | Event Number: 51310 | Rep Org: KENTUCKY DEPT OF RADIATION CONTROL
Licensee: ISA, INC.
Region: 1
City: LOUISVILLE State: KY
County:
License #: GL 401-838-42
Agreement: Y
Docket:
NRC Notified By: CURT PENDERGRASS
HQ OPS Officer: JOHN SHOEMAKER | Notification Date: 08/11/2015
Notification Time: 15:16 [ET]
Event Date: 01/01/2011
Event Time: [CDT]
Last Update Date: 08/11/2015 | Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
| Person (Organization):
RAY POWELL (R1DO)
NMSS_EVENTS_NOTIFIC (EMAI)
ILTAB (EMAI)
|
| This material event contains a "Less than Cat 3 " level of radioactive material. | Event Text AGREEMENT STATE REPORT - STOLEN THERMO ELECTRON XRF ANALYZER
The following report was received from the Commonwealth of Kentucky via fax:
"On 8/7/15, [the licensee] reported that [sometime] in 2011, a Thermo Electron XRF Analyzer Model XLp818 (serial number 17620) was stolen from their facility in Louisville, KY. The device contained a QSA Global AMCL Am-241 source (serial number 5588CW) that was 30 mCi on 3/13/2007. The KY RHB [Kentucky Radiation Health Branch] has requested additional information."
KY Report: KY150004.
THIS MATERIAL EVENT CONTAINS A "LESS THAN CAT 3" LEVEL OF RADIOACTIVE MATERIAL
Sources that are "Less than IAEA Category 3 sources," are either sources that are very unlikely to cause permanent injury to individuals or contain a very small amount of radioactive material that would not cause any permanent injury. Some of these sources, such as moisture density gauges or thickness gauges that are Category 4, the amount of unshielded radioactive material, if not safely managed or securely protected, could possibly - although it is unlikely - temporarily injure someone who handled it or were otherwise in contact with it, or who were close to it for a period of many weeks. For additional information go to http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf |
| Power Reactor | Event Number: 51329 | Facility: INDIAN POINT
Region: 1 State: NY
Unit: [2] [ ] [ ]
RX Type: [2] W-4-LP,[3] W-4-LP
NRC Notified By: JOHN BAKER
HQ OPS Officer: MARK ABRAMOVITZ | Notification Date: 08/18/2015
Notification Time: 19:38 [ET]
Event Date: 08/18/2015
Event Time: 13:31 [EDT]
Last Update Date: 08/18/2015 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(v)(B) - POT RHR INOP
50.72(b)(3)(ii)(B) - UNANALYZED CONDITION
| Person (Organization):
ANNE DeFRANCISCO (R1DO)
|
| Unit | SCRAM Code | RX CRIT | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode | | 2 | N | Y | 100 | Power Operation | 100 | Power Operation | Event Text RESIDUAL HEAT REMOVAL HEAT EXCHANGER OUTLET VALVES UNANALYZED CONDITION
At 1331 hours [EDT] on August 18, 2015 with the plant in mode 1, IP2 entered TS [Technical Specification] 3.0.3 upon determination by the Shift Manager that MOV-746 and 747 at the outlet of the Residual Heat Removal (RHR) Heat Exchangers may not (fully) open on an Sl [Safety Injection] signal if there was a degraded grid voltage (where the voltage at the 480V Safeguards Buses is below the minimum drop-out value of 415V and above the loss-of-voltage value of 206.6V). The MOV 746 and 747 valves are normally closed so the Sl signal with degraded voltage present could cause the fuses to fail. The time when the fuses would fail and the extent to which the MOVs open has not yet been analyzed. Immediate corrective actions was taken to replace the fuses with fuses that would not fail. The RHR trains were restored to an operable condition at 1419 and 1431 hours. This event is potentially reportable under 10 CFR 50. 72(b)(3)(ii) and 10 CFR 50.72(b)(3)(v) since the condition has not yet been fully analyzed but has been corrected.
"The plant remained at 100% power during the time of this event. All technical specification requirements were followed."
The licensee will notify the NRC Resident Inspector and the State. | |