|
U.S. Nuclear Regulatory Commission
Operations Center
Event Reports For
07/22/2011 - 07/25/2011
** EVENT NUMBERS **
|
| !!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!! |
| Power Reactor |
Event Number: 46925 |
Facility: SUSQUEHANNA
Region: 1 State: PA
Unit: [1] [2] [ ]
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: MARTIN LICHTNER
HQ OPS Officer: BILL HUFFMAN |
Notification Date: 06/04/2011
Notification Time: 23:05 [ET]
Event Date: 06/04/2011
Event Time: 16:14 [EDT]
Last Update Date: 07/22/2011 |
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(v)(D) - ACCIDENT MITIGATION |
Person (Organization):
RICHARD CONTE (R1DO) |
| Unit |
SCRAM Code |
RX CRIT |
Initial PWR |
Initial RX Mode |
Current PWR |
Current RX Mode |
| 1 |
N |
N |
0 |
Cold Shutdown |
0 |
Cold Shutdown |
| 2 |
N |
N |
0 |
Cold Shutdown |
0 |
Cold Shutdown |
Event Text
BOTH CONTROL STRUCTURE CHILLERS OUT OF SERVICE
"On 06/04/2011, personnel observed the temperature control valve for the 'B' control structure chiller not operating properly. To investigate control valve operation, the controller was taken to the manual mode (from automatic) at 1614 [EDT]. The control valve stem was lubricated, and the valve was operated with the controller in the manual mode. The 'B' control structure chiller was inoperable in this condition until control valve responsiveness was validated (total of 35 minutes, until 1649 [EDT]). The 'B' chiller continued to operate during this period.
"The 'A' control structure chiller was out of service during this timeframe to perform maintenance activities. Hence, neither chiller was operable.
"The control structure chillers provide control building habitability during unit operation. The control structure chillers also provide cooling water for emergency switchgear room cooling on unit one only.
"This condition is being reported as an event or condition that could have prevented fulfillment of a safety function per 10CFR 50.72(b)(3)(v)(D)."
The licensee has notified the NRC Resident Inspector.
* * * RETRACTION ON 7/22/2011 AT 1519 FROM LONNIE CRAWFORD TO MARK ABRAMOVITZ * * *
"On June 4, 2011, Susquehanna reported the simultaneous inoperability of both control structure (CS) chillers as an event or condition that could have prevented fulfillment of a safety function in accordance with 10CFR 50.72(b)(3)(v)(D). After further investigation, Susquehanna has concluded that the 'A' and 'B' CS chillers were not inoperable at the same time.
"On June 3, 2011 at 1608, fluctuating amperage was observed on the 'A' CS chiller and the chiller was declared inoperable. As a result, the 'B' CS chiller was placed in service with the 'A' CS chiller placed in standby. Subsequent troubleshooting of the 'A' CS chiller included replacing the chiller temperature controller with a spare while the original controller was evaluated in the shop. The original controller was re-installed on June 4, 2011 at approximately 1030 but did not resolve the issue. The 'A' CS chiller was later shutdown and removed from standby on June 4, 2011 at 1727.
"Originally, Susquehanna believed that the fluctuating amperage on the 'A' chiller was an operability issue. Subsequent engineering evaluation has determined that the observed oscillations were not rapid enough and did not have sufficient amplitude to cause damage to the chiller motor and were within design limits. The conclusion is that the 'A' control structure chiller was operable and would continue to operate for its 30 day mission time with the observed current oscillations. Although the 'A' chiller was inoperable as a result of troubleshooting at various times on June 3 and 4, the 'A' chiller was available and operable during the short period of time on June 4 when the 'B' chiller was inoperable. .
"Based on the above information, this ENS report is retracted."
The licensee notified the NRC Resident Inspector.
Notified the R1DO (Dentel). |
| Power Reactor |
Event Number: 47056 |
Facility: CRYSTAL RIVER
Region: 2 State: FL
Unit: [3] [ ] [ ]
RX Type: [3] B&W-L-LP
NRC Notified By: CHRIS YARASHEVICH
HQ OPS Officer: DONALD NORWOOD |
Notification Date: 07/15/2011
Notification Time: 13:15 [ET]
Event Date: 07/16/2011
Event Time: 05:00 [EDT]
Last Update Date: 07/23/2011 |
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE |
Person (Organization):
SCOTT FREEMAN (R2DO) |
| Unit |
SCRAM Code |
RX CRIT |
Initial PWR |
Initial RX Mode |
Current PWR |
Current RX Mode |
| 3 |
N |
N |
0 |
Refueling Shutdown |
0 |
Refueling Shutdown |
Event Text
TECHNICAL SUPPORT CENTER NON-FUNCTIONAL DUE TO PLANNED MAINTENANCE
"At 0500 on Saturday, July 16th and 0700 on Saturday, July 23rd, a sequence of activities are planned that will render the Technical Support Center (TSC) non-functional by removing all normal and emergency power. These activities are being performed in support of planned TSC facility upgrades. In preparation for this power outage(s), the TSC emergency responders were notified that use of the alternate TSC will be required in accordance with station procedures. Each TSC emergency response function has performed a walkdown and verification that required functions can be established in the alternate location. The duration for each of these TSC power outages is expected to be less than 24 hours. The NRC Operations Center will be provided an update to this notification when power has been removed and restored during this time period."
The licensee has notified the NRC Resident Inspector.
* * * UPDATE FROM RICK VIRGIN TO CHARLES TEAL @ 0730 ON 7/16/11 * * *
On 7/16/2011 at 0707 power was removed from the TSC. If necessary, the alternate TSC is ready for use.
* * * UPDATE FROM WARREN DEAGLE TO BILL HUFFMAN AT 1800 ON 7/16/11 * * *
On 7/16/11 at 1729 EDT, power was restored to the TSC. The TSC has been restored to a normal operational status and can be utilized for emergency response.
The licensee has notified the NRC Resident Inspector. R2DO (Freeman) notified.
* * * UPDATE FROM CHRISTINE McKIM TO CHARLES TEAL AT 0647 EDT ON 7/23/11 * * *
On 7/23/11 at 0645 power was removed from the TSC. If necessary, the alternate TSC is ready for use.
The licensee has notified the NRC Resident Inspector. R2DO (Sykes) notified.
* * * UPDATE AT 1650 ON 7/23/2011 FROM DAVID McAGY TO MARK ABRAMOVITZ * * *
[At 1613], "power has been restored to the TSC. The normal TSC can be utilized for ERO response. There are no further planned TSC outages at this time."
Notified the R2DO (Sykes). |
| Agreement State |
Event Number: 47069 |
Rep Org: KENTUCKY DEPT OF RADIATION CONTROL
Licensee: WESTERN BAPTIST HOSPITAL
Region: 1
City: PADUCAH State: KY
County: MCCRACKEN
License #: 20214226
Agreement: Y
Docket:
NRC Notified By: MICHELE GREENWELL
HQ OPS Officer: VINCE KLCO |
Notification Date: 07/18/2011
Notification Time: 16:38 [ET]
Event Date: 07/15/2011
Event Time: 12:00 [CDT]
Last Update Date: 07/18/2011 |
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE |
Person (Organization):
GLENN DENTEL (R1DO)
ROBERT LEWIS (FSME) |
Event Text
AGREEMENT STATE REPORT - DELIVERED DOSE POTENTIALLY DIFFERENT THAN PRESCRIBED DOSE
The following information was received by e-mail:
"A routine inspection was performed of the licensee on July 11 and 12, 2011. Based on records reviewed at the time of inspection and additional documentation provided to the Kentucky Radiation Health Branch on July 15, 2011. Three unreported Medical Event(ME)s appeared to have occurred during the past three years.
" 1. On June 16, 2008 a Written Directive(WD) signed by an Authorized User [AU] for the administration for a total activity of 192.00 U (148.492 mCi) and a Prescription Dose of 125.0 Gy of Pd-103 seeds to the prostate.
Manufacturer: Theragenics Model Number: Not Available Seed Lot No: NOT AVAILABLE
Source Activity: 2.000 U (1.547 mCi )per seed Number of Seeds (Sources): 96
Based on the licensees use of the nationally recognized Report of AAPM [American Association of Physicists in Medicine] Task Group Report No. 64 for determining the dose received by the prostate a ME was identified. The post operative CT indicated the prostate received:
D90 of 81.17 Gy (64.94%) of the prescribed dose. D100 of 43.71 Gy (34.97%) of the prescribed dose.
" 2. On March 23, 2009 a Written Directive(WD) signed by an Authorized User for the administration for a Total Activity of 133.560 U (103.295 mCi) and a Prescription dose of 90. Gy of PD-103 seeds to the prostate.
Manufacturer: Theragenics Model Number: 200 Seed Lot No: 0910E
Source Activity: 1.590 U (1.230 mCi) per seed Number of Seeds (Sources): 84
Based on the licensees use of the nationally recognized Report of AAPM Task Group Report No. 64 for determining the dose received by the prostate a ME was identified. The post operative CT indicated the prostate received:
D90 of 55.41 Gy (61.57% ) of the prescribed dose. D100 of 28.03 Gy (31.15% of the prescribed dose).
"3. On April 12, 2010 a Written Directive (WD) signed by an Authorized User for the administration for a Total Activity of 140.736 U (108.848 mCi) and a Prescription Dose of 125.0 Gy of PD-103 seeds to the prostate.
Manufacturer: Theragenics Model Number: 200 Seed Lot No: 0910E
Source Activity: 2.199 U (1.701 mCi ) per seed Number of Seeds (Sources): 64
Based on the licensees use of the nationally recognized Report of AAPM Task Group Report No. 64 for determining the dose received by the prostate a ME was identified. The post operative CT indicated the prostate received:
D90 of 70.71 Gy (56.57% )of the prescribed dose. D100 of 34.21 Gy (27.36% of the prescribed dose).
"The licensee and the RSO [Radiation Safety Officer] were unaware the three procedures were reportable ME's. The RSO and the AU reviewed the Pre and Post implant plan and the AU was satisfied to follow the patients progress with repeated PSA testing.
"The licensee is currently reviewing the findings and implementing preventive measures agreed to by the licensee and the [Agreement State]."
A Medical Event may indicate potential problems in a medical facility's use of radioactive materials. It does not necessarily result in harm to the patient. |
| Agreement State |
Event Number: 47070 |
Rep Org: TEXAS DEPARTMENT OF HEALTH
Licensee: ACUREN INSPECTIONS INC.
Region: 4
City: LA PORTE State: TX
County:
License #: L01774
Agreement: Y
Docket:
NRC Notified By: ART TUCKER
HQ OPS Officer: PETE SNYDER |
Notification Date: 07/19/2011
Notification Time: 09:04 [ET]
Event Date: 07/19/2011
Event Time: 07:00 [CDT]
Last Update Date: 07/19/2011 |
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE |
Person (Organization):
VIVIAN CAMPBELL (R4DO)
RON ZELAC (FSME)
DENNIS ALLSTON (ILTA)
WILLIAM GOTT (IRD)
MIKE INZER (DHS)
DENNIS VIA (FEMA)
MIKE BEVERLY (USDA)
BOB JARRELL (DOE)
SAM WILLIS (HHS)
BRENT TALIAFERRO (NRC() |
| This material event contains a "Category 2" level of radioactive material. |
Event Text
AGREEMENT STATE REPORT - STOLEN RADIOGRAPHY CAMERA
"On July 19, 2011, the Agency [Texas Department of Health] was notified by the licensee that one of their radiography crews had discovered that the dark room on their truck had been broken into some time during the night. The radiographers stated the radiography camera transportation container containing a QSA Global model 880 D camera with a 33.7 curie iridium (Ir) 192 source and a portable electric generator had been stolen.
"Local law enforcement was contacted and responded to the scene. The agency [Texas Department of Health] notified the Texas association of Pawnbrokers of the event and provided information on the device. Additional information will be provided as it is received."
Texas Incident # I-8871
* * * UPDATE FROM ART TUCKER TO VINCE KLCO ON 7/19/2011 AT 1659 EDT * * *
The following information was received by email:
"Local law enforcement has reviewed the security tape at the hotel and was able to identify the vehicle type and manufacturer. They do not believe they can get a license plate number from the video. The time of the theft was set at between 0400 [CDT] and 0409 [CDT]. An Agency investigator went to the location and interviewed the radiographers. He found that the guide tube and crank cables were also stolen. The radiographer stated that the tailgate of the truck was not locked, but that the dark room door was locked. He stated that they did not test the alarm that day, but it had been tested on July 17, 2011. Because of the investigation by local law enforcement, they have not been able to test the alarm system today. The radiographer stated that a cable was used to secure the transport box to the truck and that one of the pad eyes used to secure the cable to the truck had been ripped through the dark room wall freeing the transportation container. The radiographer stated that the transport box has a new Yellow II label.
"The alarm system was tested at 1141 [CDT] and found to be functioning properly. The radiographers stated that they had set the alarm when they got to the hotel, but failed to set it after returning from getting their dinner.
"The agency [Texas Department of Health] has contacted the Federal Bureau of Investigation and informed them of the event.
"The agency [Texas Department of Health] and the licensee are currently driving around the city of Austin, Texas with portable radiation detection instrumentation in an attempt to locate the camera."
Notified the R4DO (Campbell), FSME (White), IRD (Gott), ILTAB (Allston), R4IAT(Howell) and Mexico (via email and fax).
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 |
| !!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!! |
| Agreement State |
Event Number: 47071 |
Rep Org: OHIO BUREAU OF RADIATION PROTECTION
Licensee: CLEVELAND CLINIC FOUNDATION
Region: 3
City: CLEVELAND State: OH
County:
License #: 02110180013
Agreement: Y
Docket:
NRC Notified By: MARK LIGHT
HQ OPS Officer: JOHN KNOKE |
Notification Date: 07/19/2011
Notification Time: 10:05 [ET]
Event Date: 07/12/2011
Event Time: 11:00 [EDT]
Last Update Date: 07/19/2011 |
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE |
Person (Organization):
RON ZELAC (FSME)
ERIC DUNCAN (R3DO) |
Event Text
AGREEMENT STATE REPORT - PATIENT RECEIVED TREATMENT TO INCORRECT ORGAN
"Approximately four (4) weeks prior to the therapy, patient was scanned for extrahepatic shunting through injection of 99mTc MAA into the hepatic artery per protocol. No shunting to the duodenum was identified.
"On Tuesday July 12, 2011, at 11:00 AM the patient was treated with 0.977 GBq of 90Y TheraSphere per protocol. Interventional Radiologist properly placed catheter. A second interventional Radiologist confirmed the catheter placement.
"On Tuesday July 12, 2011 at 6 PM, post procedure scan identified significant activity in the duodenum. Initial estimate indicates 0.117 GBq had shunted into the duodenum approximately 12% of the administered activity. An initial estimate indicates dose to duodenum is approximately 110 Gy.
"The asymptomatic patient was discharged with follow up contacts for possible intervention as a result of the dose to the duodenum. Patient has been notified. Referring physician has been notified.
"Literature search indicates patient may have developed vascularization post-scan, pretreatment.
"An inspector from the Department [Ohio Bureau of Radiation Protection] will conduct an inspection the week of July 25, 2011."
Ohio Event Report Number: 2011-014
A Medical Event may indicate potential problems in a medical facility's use of radioactive materials. It does not necessarily result in harm to the patient.
* * * RETRACTION FROM MARK LIGHT TO VINCE KLCO ON 7/19/11 AT 1326 EDT * * *
Based on further review by the licensee, the patient's organ in question did not receive the above referenced dose.
Notified the R3DO(Duncan) and FSME (Zelac). |
| Agreement State |
Event Number: 47073 |
Rep Org: WA DIVISION OF RADIATION PROTECTION
Licensee: WESTPORT SHIPYARD, INC
Region: 4
City: PORT ANGELES State: WA
County:
License #: R1163
Agreement: Y
Docket:
NRC Notified By: BRANDY KETTER
HQ OPS Officer: BILL HUFFMAN |
Notification Date: 07/19/2011
Notification Time: 13:30 [ET]
Event Date: 07/10/2011
Event Time: 12:00 [PDT]
Last Update Date: 07/19/2011 |
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE |
Person (Organization):
VIVIAN CAMPBELL (R4DO)
RON ZELAC (FSME)
ILTAB VIA E-MAIL () |
| This material event contains a "Less than Cat 3" level of radioactive material. |
Event Text
AGREEMENT STATE REPORT - LOST STATIC ELIMINATOR CONTAINING A 40 MILLICURIE PO-210 SOURCE
The following event report was received from the Washington Office of Radiation Protection via e-mail:
"On or about 10 July 2011, upon taking inventory of the static eliminators, a device was found to be missing. The device was leased from NRD, LLC on 10 November 2009. The last time the device was used was 2 June 2011. Upon discovering the device was missing, a thorough search of the facility was conducted to include personal lockers, the boat, the boat parts, the boat house, as well as other facilities around the company. At this time no one knows the location of the device, whether it was stolen, misplaced or thrown away. The company will inform the department if the device is found. Since this incident, Westport Shipyard 50 Meter Facility has changed its protocols for issuing and receiving these types of devices. They will be placed in the safety department in a locked cabinet. The will be logged out by safety on the day of use and logged back in the same day. Only leads and Supervisor will have the ability to sign for these devices and will be held accountable for their safe return at the end of the operation."
The static eliminator was manufactured by NRD, LLC; Model # P-2030-0010 / Serial # A2GY503. The device contains a Po-210, 40 milliCurie sealed source.
Washington State Report: WA110035
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 |
| Agreement State |
Event Number: 47074 |
Rep Org: TEXAS DEPARTMENT OF HEALTH
Licensee: INVISTA SARL
Region: 4
City: LA PORTE State: TX
County:
License #: L05719
Agreement: Y
Docket:
NRC Notified By: CHRIS MOORE
HQ OPS Officer: STEVE SANDIN |
Notification Date: 07/20/2011
Notification Time: 13:12 [ET]
Event Date: 04/07/2011
Event Time: [CDT]
Last Update Date: 07/20/2011 |
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE |
Person (Organization):
VIVIAN CAMPBELL (R4DO)
RON ZELAC (FSME) |
Event Text
AGREEMENT STATE REPORT - FIXED GAUGE SHUTTER FAILURE
The following report was received from the State of Texas via email:
"On July 19, 2011, the Agency [Texas Department of Health] received a call from the licensee's Radiation Safety Officer reporting that during a routine inspection on April 7, 2011, the shutter handle on an Ohmart/Vega Gauge model SHLG-1 broke off. The gauge serial number is 0678GK and contains 300 mCi of Cs-137. The gauge failed in the normally open position. The gauge was subject to condensation from a steam leak from above which caused the handle to rust. A vendor shut the gauge shutter on June 30, 2011. The gauge will be removed for disposal since the tank is no longer used. The failure did not create any additional exposure to any individual. Additional information will be provided as it is received in accordance with SA-300."
Texas Incident No.: I-8872 |
| Power Reactor |
Event Number: 47087 |
Facility: VOGTLE
Region: 2 State: GA
Unit: [3] [4] [ ]
RX Type: [3] W-AP1000,[4] W-AP1000
NRC Notified By: JIM DAVIS
HQ OPS Officer: STEVE SANDIN |
Notification Date: 07/22/2011
Notification Time: 12:18 [ET]
Event Date: 07/22/2011
Event Time: 11:00 [EDT]
Last Update Date: 07/22/2011 |
Emergency Class: NON EMERGENCY
10 CFR Section:
26.719 - FITNESS FOR DUTY |
Person (Organization):
MARVIN SYKES (R2DO) |
| Unit |
SCRAM Code |
RX CRIT |
Initial PWR |
Initial RX Mode |
Current PWR |
Current RX Mode |
| 3 |
N |
N |
0 |
Under Construction |
0 |
Under Construction |
| 4 |
N |
N |
0 |
Under Construction |
0 |
Under Construction |
Event Text
FITNESS-FOR-DUTY REPORT INVOLVING A CONTRACTOR SUPERVISOR
A contractor supervisor had a confirmed positive for alcohol during a random fitness-for-duty test. The individual's access to the site has been terminated. Contact the Headquarters Operations Officer for additional details.
The licensee informed the NRC Resident Inspector. |
| Power Reactor |
Event Number: 47088 |
Facility: FORT CALHOUN
Region: 4 State: NE
Unit: [1] [ ] [ ]
RX Type: (1) CE
NRC Notified By: DAVID SPARGO
HQ OPS Officer: MARK ABRAMOVITZ |
Notification Date: 07/22/2011
Notification Time: 13:23 [ET]
Event Date: 07/22/2011
Event Time: 08:30 [CDT]
Last Update Date: 07/22/2011 |
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(ii)(B) - UNANALYZED CONDITION |
Person (Organization):
VIVIAN CAMPBELL (R4DO) |
| Unit |
SCRAM Code |
RX CRIT |
Initial PWR |
Initial RX Mode |
Current PWR |
Current RX Mode |
| 1 |
N |
N |
0 |
Cold Shutdown |
0 |
Cold Shutdown |
Event Text
FIRE SUPRESSION PUMPS INOPERABLE
"Both Fire Suppression Pumps are not operable because the required monthly surveillance tests will not be completed for June and July. The surveillance tests will be completed when flood waters recede to below 1004 feet MSL. The current river level is 1006.3 feet. Both fire pumps, FP-1A and FP-1B, are available and lined up for use. Other options are also available to provide a means of backup fire water supply that include:
- Water Plant Pumps DW-8A and DW-8B aligned to the Fire Protection (FP) system.
- Temporary connection to the fire protection water distribution system by the Fort Calhoun Fire Truck that is staged on site or any other fire pumper truck via fire hydrant FP-3G.
- Admin Building/Training Center fire hydrant via fire hoses or water truck. This supply is from Blair water system and FP storage tank west of Highway 75.
- Drafting from the Missouri River via temporary pumps."
The licensee notified the NRC Resident Inspector. |
| Part 21 |
Event Number: 47089 |
Rep Org: ABB, INC.
Licensee: ABB, INC.
Region: 1
City: CORAL SPRINGS State: FL
County:
License #:
Agreement: Y
Docket:
NRC Notified By: DENNIS BATOVSKY
HQ OPS Officer: STEVE SANDIN |
Notification Date: 07/22/2011
Notification Time: 13:55 [ET]
Event Date: 07/22/2011
Event Time: [EDT]
Last Update Date: 07/22/2011 |
Emergency Class: NON EMERGENCY
10 CFR Section:
21.21 - UNSPECIFIED PARAGRAPH |
Person (Organization):
GLENN DENTEL (R1DO)
MARVIN SYKES (R2DO)
NRR PART21 GP () |
Event Text
PART 21 REGARDING KF PROTECTIVE RELAY - DEFECTIVE CAPACITOR
The following information was received via fax and email:
"Subject: 10 C.F.R. Part 21 Notification of Deviation regarding KF Protective Relay - Defective Capacitor
"On June 2, 2011, Constellation Energy reported that two relays caused unnecessary breaker trips three weeks after the relays were placed in service. Their investigation found that the Under-frequency Trip setpoint had drifted from the pre-set value of 57.77 Hz to 60.316 and 61.2 Hz.
"Our investigation determined that both relays contained a defective capacitor (ABB Part Number #606B340H07). The capacitor should have measured 0.225 Áf (micro-farads) ? 3%. Actual measured value of the capacitors was 0.195 Áf and 0.208 Áf. A failure analysis conducted by Arizona Capacitor Corporation identified the capacitors were incorrectly constructed with metalized film, instead of oil impregnated paper/film/oil, as required by ABB design specifications. These capacitors were manufactured by Aldon Corporation, with a date code of April 4, 2008.
"Per 10 C.F.R. 21.21 (b), we do not have the capability to perform the evaluation to determine if a defect exists, and will notify the purchasers or affected licensees within five working days. Currently, we believe there are a total of six suspect relays, provided to three customers."
The three customers are:
WESCO located in Murrysville, PA, KF Relay Style 1328D72A02A, S/N 12027, 12028A, Qty 2,
ABB Inc located in Florence, SC, KF Relay Style 1328D72A02A, S/N 12253, Qty 1 and,
ABB Ltd located in Cheonan, South Korea, KF Relay Style 1328D72A01, S/N 12025, 12026, 12366, Qty 3. |
| Power Reactor |
Event Number: 47091 |
Facility: PRAIRIE ISLAND
Region: 3 State: MN
Unit: [1] [2] [ ]
RX Type: [1] W-2-LP,[2] W-2-LP
NRC Notified By: GENE DAMMANN
HQ OPS Officer: STEVE SANDIN |
Notification Date: 07/23/2011
Notification Time: 23:20 [ET]
Event Date: 07/23/2011
Event Time: 19:00 [CDT]
Last Update Date: 07/23/2011 |
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(xi) - OFFSITE NOTIFICATION |
Person (Organization):
ERIC DUNCAN (R3DO) |
| 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 |
Event Text
OFFSITE NOTIFICATION DUE TO UNMONITORED RELEASE OF TRITIUM TO SEPTIC SYSTEM
"It was discovered that water containing tritium from a secondary system steam leak has been periodically disposed of via the septic system versus the normally monitored turbine building sump effluent path. The tritium amount was 8.00 E-5 microcuries per milliliter. The tritium sample is consistent with normal secondary plant samples. Since November, 2010, there have been no abnormal tritium results from the septic system. There was also MPA (29.7 parts per million) which is a pH additive.
"The septic system is monitored on a monthly basis but is not a normal path for discharge of equipment related fluid leakage. The steam has been condensed and collected in a 5 gallon pail that is periodically emptied by crew personnel. Management just became aware that there were instances where disposal of the water was to the septic system. This practice has been halted. The steam leak has been active since November of 2010.
"This is being reported due to the potential for being an unusual or abnormal release of radioactive effluent.
"The NRC resident has been informed."
The licensee will also inform state and local agencies of this event. |
| Power Reactor |
Event Number: 47092 |
Facility: DRESDEN
Region: 3 State: IL
Unit: [ ] [2] [3]
RX Type: [1] GE-1,[2] GE-3,[3] GE-3
NRC Notified By: PHILLIP PRATER
HQ OPS Officer: STEVE SANDIN |
Notification Date: 07/24/2011
Notification Time: 16:38 [ET]
Event Date: 07/24/2011
Event Time: 13:05 [CDT]
Last Update Date: 07/24/2011 |
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(xi) - OFFSITE NOTIFICATION |
Person (Organization):
ERIC DUNCAN (R3DO) |
| Unit |
SCRAM Code |
RX CRIT |
Initial PWR |
Initial RX Mode |
Current PWR |
Current RX Mode |
| 2 |
N |
Y |
100 |
Power Operation |
100 |
Power Operation |
| 3 |
N |
Y |
100 |
Power Operation |
100 |
Power Operation |
Event Text
EXTENDED EMERGENCY SIREN ACTIVATION DURING TESTING
"At approximately 1305 Central Time, a Grundy County Illinois representative notified Exelon of an extended Emergency Preparedness Zone (EPZ) siren activation. EPZ siren DR-13 was tested as part of normal routines this date at 1200 Central Time. During the test the siren lost AC power which shifted the power supply to the back up battery. The alarm continued to sound following the test until the back up battery depleted.
"The siren is declared inoperable. The siren contractor (Fulton Technologies, Inc) is in route for troubleshooting and repairs. 45 of 46 sirens remain operable for the Dresden Emergency Preparedness Zone.
"This condition is reportable under 10 CFR 50.72(b)(2)(xi). News release or notification of other governmental agency."
The licensee informed the NRC Resident Inspector. |
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