United States Nuclear Regulatory Commission - Protecting People and the Environment
Home > NRC Library > Document Collections > Reports Associated with Events > Event Notification Reports > 2010 > June 24

Event Notification Report for June 24, 2010

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
06/23/2010 - 06/24/2010

** EVENT NUMBERS **


46022 46026 46027 46028 46029 46030 46031 46036 46037 46038 46039 46041
46042

To top of page
General Information or Other Event Number: 46022
Rep Org: PA BUREAU OF RADIATION PROTECTION
Licensee: LANCASTER GENERAL HOSPITAL
Region: 1
City: LANCASTER State: PA
County:
License #: PA-0233
Agreement: Y
Docket:
NRC Notified By: JOSEPH MELNIC
HQ OPS Officer: DONG HWA PARK
Notification Date: 06/17/2010
Notification Time: 13:51 [ET]
Event Date: 06/03/2010
Event Time: [EDT]
Last Update Date: 06/17/2010
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
Person (Organization):
DANIEL HOLODY (R1DO)
ANGELA MCINTOSH (FSME)

Event Text

AGREEMENT STATE REPORT - HIGH DOSE RATE TREATMENT ADMINISTERED TO AN UNINTENDED AREA

The following report was received via facsimile from the Commonwealth of Pennsylvania:

"The licensee called the PaDEP [Pennsylvania Department of Environmental Protection] Southcentral Regional Office on the morning of June 16, 2010, to provide a 24-hour verbal notice of a medical event. The licensee also notified the patient and attending physician on June 16, 2010. The event involves a dosage that differs from the intended dose by greater than 20%, consequently requiring a 24-hour report per 10 CFR 35.3045.

"On June 3, 2010, a patient was undergoing HDR [High Dose Rate] treatment for ovarian cancer. The area to be treated was incorrectly entered into the HDR computer and resulted in the patient receiving a dose to an unintended area. This event was discovered during the second fraction of treatment on June 15, 2010. Cause of the event was human error.

"The Department is awaiting more event details at this time and plans to send regional staff to conduct an inspection on June 21, 2010. Final event details will be communicated in a NMED report."

PA Event No.: PA100012

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.

To top of page
General Information or Other Event Number: 46026
Rep Org: ILLINOIS EMERGENCY MGMT. AGENCY
Licensee: MOHAMED MEGAHY, M.D., Ltd
Region: 3
City: MARYVILLE State: IL
County:
License #: IL-02032-01
Agreement: Y
Docket:
NRC Notified By: DAREN PERRERO
HQ OPS Officer: DONG HWA PARK
Notification Date: 06/18/2010
Notification Time: 14:23 [ET]
Event Date: 05/01/2010
Event Time: [CDT]
Last Update Date: 06/18/2010
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
Person (Organization):
MICHAEL KUNOWSKI (R3DO)
ANGELA MCINTOSH (FSME)

Event Text

AGREEMENT STATE REPORT - POTENTIAL DOSE TO EMBRYO OR FETUS

The State of Illinois provided the following information via email:

"On June 17, 2009, the [Illinois Emergency Management] Agency was contacted with a request to make a dose estimate to a fetus as a result of administration of radioiodine to a patient who was later found to be pregnant. Subsequently when additional information was requested to determine the appropriate parameters, the [Illinois Emergency Management] Agency was advised that the administration had occurred 3 years earlier and that the child had been delivered after a full term pregnancy and was receiving thyroid hormone therapy. The physician indicated that on May 1, 2007 a patient was given 102.9 milliCi of I-131 as a treatment for recurrence of cancer associated with a previous thyroidectomy conducted in 2006. The physician had previously treated the patient with I-131 in 2006 following surgery and had conducted patient interviews/training regarding administration of I-131 at that time, so that when she represented herself for an additional treatment dose, he had been lead to believe she understood the contraindications. The doctor stated that he was told no when he asked if she was pregnant. No independent test was conducted. On June 11, 2007, he was contacted by the physician's obstetrician who advised that she was at 32 weeks gestation as of June 11, 2007. This would infer she was 25-27 weeks (6 month) pregnant at the time of the second administration a month earlier.

"Calculations were performed by the [Illinois Emergency Management] Agency for a thyroid patient following ANSI Std. N13.54-2008 which lead to an estimated dose to the fetus of 86 Rad. This event remains open pending submission of the required report from the physician and follow up by the [Illinois Emergency Management] Agency."

IL Event No.: IL 10044

To top of page
General Information or Other Event Number: 46027
Rep Org: KANSAS DEPT OF HEALTH & ENVIRONMENT
Licensee: WESLEY MEDICAL CENTER
Region: 4
City: WICHITA State: KS
County:
License #: 19-C041-01
Agreement: Y
Docket:
NRC Notified By: DAVID WHITFILL
HQ OPS Officer: DONG HWA PARK
Notification Date: 06/18/2010
Notification Time: 17:13 [ET]
Event Date: 10/01/2006
Event Time: [CDT]
Last Update Date: 06/18/2010
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
Person (Organization):
WILLIAM JONES (R4DO)
BRUCE WATSON (FSME)

This material event contains a "Less than Cat 3" level of radioactive material.

Event Text

AGREEMENT STATE REPORT - FOUND BRACHYTHERAPHY SOURCE PREVIOUSLY LOST

The State of Kansas provided the following information via facsimile:

"This event that occurred during the 4th quarter of 2006 at Wesley Medical Center, LLC, was determined during the State of Kansas IMPEP [Integrated Materials Performance Evaluation Program] inspection conducted the week of June 14, 2010, to be reportable under 10CFR2201. An electronic update to the NMED database will follow. Below are details of the event.

"During an inspection by KDHE [Kansas Department of Health and Environment] of Wesley Medical Center 2/14/2007, a review of the 4th quarter Radiation Safety Committee notes revealed that a brachytherapy source was lost for approximately 45 hours. From the inspector's notes: 'Incident where a Cs-137 brachytherapy source was lost for approximately 45 hours before being found in the sheets in the laundry room by the RSO [Radiation Safety Officer]. RSO did not make a determination of exposure to the patient based on conservative and worst case scenarios. Incident was not reported to the State.'

"The RSO notes read: 'We had one recordable event that has been noted in the HNS system. We had one misplaced cesium 137 brachytherapy source. A patient presented for treatment of cervix cancer and we used low-dose Fletcher Suit system where the cesium sources dwell within the patient for 45 hours. The plan was reviewed and the patient was loaded. On the day of removal, one source was missing when the RSO emptied the tandems. Both physicists searched extensively for the source using a Geiger counter. The source was located on the floor in the laundry capture room for women's health. It was determined that the source never reached its destination in the patient, and that it most likely fell into the bed linens during insertion. One environmental service worker spends approximately five minutes per day having an approximate exposure of 1 mRem from that activity. A member of the public would be limited to 100 mRem of exposure per year and the exposure rate would be approximately 1.2 mRem per hour at 3 meters; some of the walls in the room are cinder blocks which provide some shielding. It was suggested that linen be left in the patient's room during their stay to guard against having an incident such as this in the future.'

"The licensee was issued a citation for failure to report this as a lost source.

"Update information provided during the week of June 14, 2010 indicated that the source activity was 37 mCi (15 mg Ra equivalent)."

KS Event No.: KS100006.

To top of page
General Information or Other Event Number: 46028
Rep Org: KANSAS DEPT OF HEALTH & ENVIRONMENT
Licensee: STATE OF KANSAS
Region: 4
City: TOPEKA State: KS
County:
License #: 22-B315-01
Agreement: Y
Docket:
NRC Notified By: DAVID J. WHITFILL
HQ OPS Officer: DONALD NORWOOD
Notification Date: 06/18/2010
Notification Time: 17:13 [ET]
Event Date: 03/28/2006
Event Time: [CDT]
Last Update Date: 06/18/2010
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
Person (Organization):
WILLIAM JONES (R4DO)
BRUCE WATSON (FSME)

Event Text

AGREEMENT STATE REPORT - DAMAGED GAUGE

The following information was received from the Kansas Department of Health and Environment via facsimile:

"On 3/29/06, Kansas Department of Transportation (KDOT) reported by phone that a portable gauge got hit by a vehicle near SW US 77/50 last night [3/28/06]. The gauge was packed in its shipping container and was ready to load on a truck when the accident happened. The shipping container sustained minor damage. An assessment is being made with details to follow. Follow-up actions will be reviewed in inspection space.

"On 4/7/06, an inspection was conducted of licensee's facility. No items of non-compliance were found. Licensee continues to calibrate and clean their own devices as per their license conditions. If necessary, gauges are sent to the manufacturer for repair.

"On 5/5/06, reports and narratives were received from KDOT personnel involved with the gauge incident. Gauge failed Validator assessment and is being recalibrated. No other damage to the gauge itself was reported.

"Note: This item was determined during the State of Kansas IMPEP [Integrated Material Performance Evaluation] inspection conducted the week of June 14, 2010, that this event was reportable under 10CFR30.50(b)(2)(iii) - The 24 hour report of an event where required equipment is disabled or fails to function as designed when no redundant equipment is available and operable to perform the required safety function."

Kansas Item Number: KS060007

To top of page
General Information or Other Event Number: 46029
Rep Org: KANSAS DEPT OF HEALTH & ENVIRONMENT
Licensee: TETRA TECH
Region: 4
City: KANSAS CITY State: KS
County:
License #: 22-C250-01
Agreement: Y
Docket:
NRC Notified By: DAVID WHITFILL
HQ OPS Officer: DONG HWA PARK
Notification Date: 06/18/2010
Notification Time: 17:13 [ET]
Event Date: 08/14/2007
Event Time: [CDT]
Last Update Date: 06/18/2010
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
Person (Organization):
WILLIAM JONES (R4DO)
BRUCE WATSON (FSME)

Event Text

AGREEMENT STATE REPORT - POTENTIALLY DAMAGED TROXLER

The State of Kansas provided the following information via facsimile:

"During the course of an inspection performed on 10/31/2007, it was discovered that Tetra-Tech had a gauge damaged in an accident at a temporary jobsite on 8/1/2007. The gauge was leak tested and shipped back to the manufacturer (Troxler) and refurbished and then returned to Tetra-Tech. Tetra-Tech did not notify the State of the damaged gauge and was issued a citation via the Inspection letter dated 11/15/2007. Terra-Tech responded in a letter dated 12/26/2007 and that was accompanied by several pictures of the damaged gauge. Based on the licensee's description and the photos the gauge was only superficially damaged with only a slight dent being visible on one end of the gauge. Had KDHE [Kansas Department of Health and Environment] been notified at the time of the accident on 8/14/2007 and been sent pictures, no response would have been required. The licensee understands, based on their letter, the need to communicate with KOHE regarding future incidents. No further action is required.

"This item was determined during the State of Kansas IMPEP [Integrated Materials Performance Evaluation Program] inspection conducted the week of June 14, 2010, that this event was reportable under 10CFR30.50(b)(2). An electronic update to the NMED database will follow."

KS Event No.: KS070010

To top of page
General Information or Other Event Number: 46030
Rep Org: KANSAS DEPT OF HEALTH & ENVIRONMENT
Licensee: HONEYWELL
Region: 4
City: OLATHE State: KS
County:
License #: GL 506
Agreement: Y
Docket:
NRC Notified By: DAVID J. WHITFILL
HQ OPS Officer: DONALD NORWOOD
Notification Date: 06/18/2010
Notification Time: 17:13 [ET]
Event Date: 07/27/2006
Event Time: [CDT]
Last Update Date: 06/18/2010
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
Person (Organization):
WILLIAM JONES (R4DO)
BRUCE WATSON (FSME)

This material event contains a "Less than Cat 3" level of radioactive material.

Event Text

AGREEMENT STATE REPORT - MISSING STATIC ELIMINATOR

The following information was received from the Kansas Department of Health and Environment via facsimile:

"On July 27, 2006, Honeywell reported by phone that an internal review showed that a static eliminator device shipped 12/18/03, activity 10 mCi, was missing. As of the report date, the activity of this device would have been 84 microCi (138 day half-life). This would give a gamma exposure of 172 microR/h at 30 cm (11 microR/h at 1 m).

"A search for the device was done, but the device was not found. The root cause was a loss of accountability in that the device was issued to an entire production team or line versus an individual bench within the production line.

"Corrective action included issuing of the devices through the Health, Safety, and Environment (HSE) department rather than a tool crib. Also the devices will only be issued to an individual to improve personal accountability.

"The manufacturer was notified. This event is considered closed.

"Note: This item was determined during the State of Kansas IMPEP [Integrated Material Performance Evaluation] inspection conducted the week of June 14, 2010, that this event was reportable under 10CFR20.2201(a)(1)(ii) - Reporting within 30 days after the occurrence of any lost, stolen or missing material in excess of 10 times the appendix C quantities."

Kansas Item Number: KS060014

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

To top of page
General Information or Other Event Number: 46031
Rep Org: CALIFORNIA RADIATION CONTROL PRGM
Licensee: SUTTER HEALTH MEDICAL PHYSICS CENTER
Region: 4
City: SACRAMENTO State: CA
County:
License #: 2964
Agreement: Y
Docket:
NRC Notified By: ROBERT GREGER
HQ OPS Officer: DONG HWA PARK
Notification Date: 06/18/2010
Notification Time: 19:38 [ET]
Event Date: 06/17/2010
Event Time: [PDT]
Last Update Date: 06/18/2010
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
Person (Organization):
WILLIAM JONES (R4DO)
BRUCE WATSON (FSME)

Event Text

AGREEMENT STATE REPORT - PATIENT RECEIVED LESS THAN PRESCRIBED DOSE FROM GAMMA KNIFE TREATMENT

"A patient undergoing Gamma Knife treatment received less than the prescribed dose in the eighth of eight planned treatments. The undertreatment exceeded 50% of the planned treatment dose for the final fractional treatment (only approximately 12 rads of the prescribed approximately 162 rads for the final fractional dose was administered).

"The final treatment was terminated approximately 15 seconds into the planned 3.5 minute treatment due to apparent pain on the part of the patient. Upon investigation, it was determined that the head immobilizing bracket was not fully secured. Only approximately 12 rads dose had been administered in the approximately 15 seconds before the treatment was terminated. The planned total treatment dose was 1300 rads. Approximately 1150 rads were administered in the eight treatments.

"The licensee reported they likely will not give the patient the remaining 150 rads of the planned treatment."

CA Event No.: 061810

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.

To top of page
Power Reactor Event Number: 46036
Facility: DIABLO CANYON
Region: 4 State: CA
Unit: [1] [ ] [ ]
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: DOUGLAS DYE
HQ OPS Officer: MARK ABRAMOVITZ
Notification Date: 06/23/2010
Notification Time: 14:11 [ET]
Event Date: 06/23/2010
Event Time: 10:48 [PDT]
Last Update Date: 06/23/2010
Emergency Class: ALERT
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED
50.72(b)(2)(xi) - OFFSITE NOTIFICATION
Person (Organization):
GREG PICK (R4DO)
JOHN THORPE (NRR)
BRUCE BOGER (NRR)
ELMO COLLINS (R4 R)
WILLIAM GOTT (IRD)
MIKE INZER (DHS)
KEVIN O'CONNEL (FEMA)

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

ALERT DECLARED FOR A CARDOX DISCHARGE IN THE TURBINE BUILDING

A CARDOX release occurred in the Unit-1 main turbine lube oil room and an Unusual Event was declared. The release resulted in an atmosphere immediately dangerous to life and health resulting in an Alert notification. No injuries resulted, however, the crane bay in the center of the turbine building was evacuated. Approximately 30% of the CARDOX storage tank was discharged due to a malfunctioning solenoid valve. This valve had recently been replaced.

The licensee notified the NRC Resident Inspector.

* * * UPDATE AT 1525 EDT ON 6/23/10 FROM TONY CHITWOOD TO S. SANDIN * * *

The licensee provided the following information as an update:

"On June 23, 2010, at 1035 PDT, an accidental discharge of CARDOX into Unit 1 Main Lube Oil Reservoir Room occurred during testing. On June 23, at 1048 PDT, an Unusual Event was declared for DCPP Unit 1. On June 23, at 1056 PDT, an Alert was declared for DCPP Unit 1. The DCPP Unit 1 reactor remains at full power. No safety related equipment has been impacted. There were no injuries to personnel and no equipment damage. Offsite assistance was requested to assist in event response.

"Pacific Gas and Electric Company issued the first press release at 1225 PDT on June 23, 2010. Further press releases will be issued as necessary until the event is terminated.

"The licensee notified the NRC Resident Inspector." The licensee also informed state and local agencies. Notified R4DO (Pick).

* * * UPDATE AT 2028 EDT ON 6/23/10 FROM DAVID EFRON TO S. SANDIN * * *

The licensee has terminated the Alert at 1715 PDT based on restoring accessibility to all plant area.

The licensee will inform state/local agencies, the NRC Resident Inspector and issue a follow-up press release.

Notified R4DO (Pick), NRR EO (Cunningham), IRD (Morris), DHS (Inzer), FEMA (Hollis), DOE (Yates), USDA (Petrick), and HHS (Lee).

To top of page
Power Reactor Event Number: 46037
Facility: COOK
Region: 3 State: MI
Unit: [1] [2] [ ]
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: JEFF WIECZOREK
HQ OPS Officer: STEVE SANDIN
Notification Date: 06/23/2010
Notification Time: 14:34 [ET]
Event Date: 06/23/2010
Event Time: 14:28 [EDT]
Last Update Date: 06/23/2010
Emergency Class: UNUSUAL EVENT
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED
50.72(b)(2)(xi) - OFFSITE NOTIFICATION
Person (Organization):
JULIO LARA (R3DO)
JOHN THORPE (NRR)
BRUCE BOGER (NRR)
WILLIAM GOTT (IRD)
MIKE INZER (DHS)
KEVIN O'CONNEL (FEMA)

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

DECLARATION OF UNUSUAL EVENT DUE TO SEISMIC EVENT

"At 1428 [EDT] on Wednesday, June 23, 2010, an Unusual Event was declared for Unit 1 and Unit 2 based on Emergency Plan criterion N-1 'Natural or Destructive Phenomena Inside the Protected Area'.

"The Unusual Event was declared following detection of ground motion by persons on site, with confirmation based on United States Geological Survey information. Plant operation was not impacted by the event. Site structure and system inspections are in progress in accordance with the Abnormal Operating Procedure for Earthquake. No damage has been identified.

"In accordance with Emergency Plan procedures, notifications of Berrien County and State of Michigan were completed. The licensee has notified the NRC Senior Resident Inspector. A follow-up notification will be made after the Unusual Event is terminated.

"This notification is being made in accordance with 10 CPR 50.72 (a)(1)(i) due to declaration of an emergency class."

* * * UPDATE AT 1645 EDT ON 06/23/10 FROM JAMES SHAW TO S. SANDIN * * *

The licensee provided the following information as an update:

"A press release has been issued regarding the seismic event. This notification update is being made in accordance with 10 CFR 50.72 (b)(2)(xi) for news release or notification of other government agency."

The licensee informed state/local agencies and the NRC Resident Inspector. Notified R3DO (Lara).

* * * UPDATE AT 2017 EDT ON 6/23/2010 FROM TIMOTHY WICE TO MARK ABRAMOVITZ * * *

"The Unusual Event due to Seismic Event was terminated at 1955 EDT following an examination of plant systems which revealed no damage due to the seismic event. A press release has been issued regarding the termination of the Unusual Event. This notification update is being made to notify of the Unusual Event termination and also notify of the press release describing the Unusual Event termination in accordance with 10 CFR 50.72 (b)(2)(xi) for news release or notification of other government agency."

The licensee notified state/local agencies and the NRC Resident Inspector.

Notified the R3DO (Lara), NRR EO (Cunningham), DHS (Inzer), and FEMA (Hollis).

To top of page
Power Reactor Event Number: 46038
Facility: VERMONT YANKEE
Region: 1 State: VT
Unit: [1] [ ] [ ]
RX Type: [1] GE-4
NRC Notified By: ANDREW WISNIEWSKI
HQ OPS Officer: STEVE SANDIN
Notification Date: 06/23/2010
Notification Time: 15:16 [ET]
Event Date: 06/23/2010
Event Time: 14:25 [EDT]
Last Update Date: 06/23/2010
Emergency Class: UNUSUAL EVENT
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED
Person (Organization):
JAMES DWYER (R1DO)
JOHN THORPE (NRR)
BRUCE BOGER (NRR)
WILLIAM GOTT (IRD)
SAM COLLINS (R1 R)
MIKE INZER (DHS)
KEVIN O'CONNEL (FEMA)

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

UNUSUAL EVENT DECLARED DUE TO AN EARTHQUAKE FELT ONSITE

"Event Description: An Unusual Event was declared at 1425 EDT due to reports from site personnel of an earthquake felt onsite. This was verified through the National Earthquake Information Center. Plant seismic monitors did not actuate.

"Actions Taken: Implemented OP 3127, Natural Phenomenon, for an earthquake. Plant personnel are walking down systems for any damage indications. [There is no indication of damage] at this time."

The licensee informed state/local agencies and the NRC Resident Inspector. The licensee plans to issue a press release.

* * * UPDATE AT 1742 ON 6/23/2010 FROM BOB VITA TO MARK ABRAMOVITZ * * *

The Unusual Event was terminated at 1725 EDT. Plant walkdowns were completed with no damage noted. The licensee notified the NRC Resident Inspector.

Notified the R1DO (Dwyer), NRR EO (Cunningham), DHS (Inzer), and FEMA (Hollis).

To top of page
Power Reactor Event Number: 46039
Facility: NORTH ANNA
Region: 2 State: VA
Unit: [1] [2] [ ]
RX Type: [1] W-3-LP,[2] W-3-LP
NRC Notified By: MICHAEL WHALEN
HQ OPS Officer: MARK ABRAMOVITZ
Notification Date: 06/23/2010
Notification Time: 15:19 [ET]
Event Date: 06/23/2010
Event Time: 09:10 [EDT]
Last Update Date: 06/23/2010
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
Person (Organization):
SCOTT SHAEFFER (R2DO)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
1 N Y 98 Power Operation 98 Power Operation
2 N Y 99 Power Operation 99 Power Operation

Event Text

EARLY WARNING SIREN TEST FAILURE

"North Anna experienced a severe storm the night of June 22, 2010. At 0910 hours on June 23, 2010, the telecommunications group polled the Early Warning System (EWS) sirens to check operability. The first siren did not respond. It was determined the back-up base radio was not transmitting the audio signal to the sirens. Therefore, activation of the EWS by the state or local agencies would not have been possible. It was possible to activate the EWS sirens locally from North Anna off a separate radio system. At 1040 hours the back-up radio was replaced and tested satisfactory for proper radio function. The primary base radio was also replaced and tested satisfactorily. The polling function test was performed with all 68 sirens responding as designed. The EWS sirens are currently operating off of the primary base radio with the back-up radio available for operation."

The EWS was initially on the backup radio. This radio has been replaced.

The licensee notified the NRC Resident Inspector, state government and will notify local government. The licensee will contact local media concerning this event.

To top of page
Power Reactor Event Number: 46041
Facility: TURKEY POINT
Region: 2 State: FL
Unit: [3] [ ] [ ]
RX Type: [3] W-3-LP,[4] W-3-LP
NRC Notified By: ED TREMBLAY
HQ OPS Officer: STEVE SANDIN
Notification Date: 06/23/2010
Notification Time: 19:23 [ET]
Event Date: 06/23/2010
Event Time: 12:51 [EDT]
Last Update Date: 06/23/2010
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
Person (Organization):
SCOTT SHAEFFER (R2DO)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
3 N Y 100 Power Operation 100 Power Operation

Event Text

UNIT 3 EMERGENCY RESPONSE DATA SYSTEM DECLARED INOPERABLE

"The Unit 3 Emergency Response Data System (ERDS) communications link availability is questionable. Some of the data has failed to zero. The system engineer has reported that the historian is not collecting data. Declared U3 ERDS inoperable."

The licensee will inform the NRC Resident Inspector.

To top of page
Power Reactor Event Number: 46042
Facility: LIMERICK
Region: 1 State: PA
Unit: [1] [ ] [ ]
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: PAUL MARVEL
HQ OPS Officer: BILL HUFFMAN
Notification Date: 06/23/2010
Notification Time: 23:57 [ET]
Event Date: 06/23/2010
Event Time: 20:51 [EDT]
Last Update Date: 06/24/2010
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL
Person (Organization):
JAMES DWYER (R1DO)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
1 M/R Y 100 Power Operation 0 Hot Shutdown

Event Text

MANUAL REACTOR SCRAM FOLLOWING LOSS OF BOTH RECIRCULATION PUMPS

"Limerick Unit 1 was manually scrammed from 100% power on 6/23/10 at 2051 hours in accordance with plant procedure OT-112 'Recirculation Pump Trip' when both 1A and 1B recirc pump MG set drive motor breakers were observed to have tripped, resulting in a loss of both reactor recirculation pumps. Preliminary indication is a loss of power to 114A Load Center, caused by 'A' phase overcurrent trip of 13.2 KV feeder breaker (11-BUS-07) to the 114A Transformer and Load Center. The cause of the MG set drive motor breaker trips is under investigation at this time.

"All Control Rods inserted as required.

"No ECCS or RCIC initiations occurred.

"No Primary or Secondary Containment Isolations were received.

"The plant is currently in Hot Shutdown maintaining normal reactor level with feedwater in service."

All systems functioned as required during the transient. The manual scram was characterized as uncomplicated. No PORVs or Safety Relief valves lifted during the transient. Decay heat is being discharged to the condenser via turbine bypass valves. The unit is in a normal shutdown electrical lineup and there was no impact on Unit 2.

The electrical supplies for the recirc pump MG sets has been walked down by the licensee and no indication of any damage or electrical faults has been found at this time.

The NRC Resident Inspector has been notified and the licensee indicated a media or press release will be made.

Page Last Reviewed/Updated Thursday, March 29, 2012
Thursday, March 29, 2012