United States Nuclear Regulatory Commission - Protecting People and the Environment
Home > NRC Library > Document Collections > Reports Associated with Events > Event Notification Reports > 2006 > August 4

Event Notification Report for August 4, 2006

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
08/03/2006 - 08/04/2006

** EVENT NUMBERS **


42652 42741 42742 42751

To top of page
Power Reactor Event Number: 42652
Facility: MONTICELLO
Region: 3 State: MN
Unit: [1] [ ] [ ]
RX Type: [1] GE-3
NRC Notified By: RYAN RICHARDS
HQ OPS Officer: JOHN MacKINNON
Notification Date: 06/19/2006
Notification Time: 04:06 [ET]
Event Date: 06/18/2006
Event Time: 23:19 [CDT]
Last Update Date: 08/03/2006
Emergency Class: NON EMERGENCY
10 CFR Section:
50.73(a)(1) - INVALID SPECIF SYSTEM ACTUATION
Person (Organization):
PATRICK LOUDEN (R3)

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

RADIATION MONITOR SPIKED THREE TIMES

"At 2319 on 06/18/2006, the 'A' Plenum Radiation Monitor spiked high which resulted in the closure of the Drywell CAM (Continuous Air Monitor) and the Oxygen Analyzer Primary Containment Isolation Valves. The spike's (3) of approx. 30 Mr/HR occurred during this event. The valves isolated once, the Reactor Building Ventilation trip was reset once and re-isolation occurred several minutes later from another spike on the Rad Monitor. Trip setpoint is 26 Mr/hr. The Plenum high Rad signal also resulted in Reactor Building isolation (twice), start of 'A' Standby Gas Treatment, and transfer of the Control Room Ventilation to the high Rad Mode. The 'B' Plenum Rad Monitor remained constant at 1.3 Mr/hr. The Reactor Building Ventilation and Control Room Ventilation have been reset and Standby Gas Treatment has been secured. The 'A' Plenum Radiation Monitor has been declared inoperable."

Instrument & Control Technicians are currently troubleshooting the problem associated with the 'A' Plenum Radiation Monitor.

The NRC Resident Inspector's have been left messages by the licensee.

* * * UPDATE AT 10:15 ON 8/3/2006 FROM ROBERT SCHREIFELS TO ABRAMOVITZ * * *

This report is being reclassified by the licensee from a 50.72(b)(3)(iv)(A) [valid system actuation] to 50.73(a)(2)(iv)(A) [invalid system actuation].

"Based on further investigation, Monticello has determined that the actuation signal was due to a failed microswitch and therefore was not a valid signal. Because the actuation signal was not valid, Monticello is retracting the initial event report and instead reporting this event as an unplanned system actuation under 50.73(a)(2)(iv)(A). This report will be made in lieu of reporting the event as an LER.

"In accordance with 50.73(a)(2)(iv)(A):

"This report is not considered an LER and the report is being made under 50.73(a)(2)(iv)(A). The original event report (ENS #42652) detailed the systems affected, whether the actuation was complete or partial and whether each affected system started and functioned successfully.

"The cause of the invalid signal was the failure of the trip check pushbutton [micro]switch due to age related degradation. The switch has been replaced and the 'A' Plenum Radiation Monitor was returned to service."

The licensee notified the NRC Resident Inspector.

Notified the R3DO (O'Brien).

To top of page
General Information or Other Event Number: 42741
Rep Org: MA RADIATION CONTROL PROGRAM
Licensee: BRUKER DALTONICS NBC DETECTION CORP
Region: 1
City: BILLERICA State: MA
County:
License #: 38-0257
Agreement: Y
Docket:
NRC Notified By: TONY CARPENITO
HQ OPS Officer: JOHN KNOKE
Notification Date: 07/31/2006
Notification Time: 08:56 [ET]
Event Date: 06/14/2006
Event Time: [EDT]
Last Update Date: 08/03/2006
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
Person (Organization):
PAT FINNEY (R1)
GREG MORELL (NMSS)
ILTAB EMAIL ()
CANADA EMAIL ()

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

Event Text

AGREEMENT STATE REPORT - MISSING SHIPMENT OF NI-63

The State provided the following information via facsimile:

"On 7/13/06, licensee reported [ to State of MA] that a Raid-M-100 Hand-Held Chemical Agent Monitor (S/N 22653301851) containing up to 100 Mbq (2.7 mCi) of Nickel-63, shipped by licensee employee on 6/5/06 from Anchorage, AK, via United Parcel Service was reported as being not yet received at the licensee's Billerica, MA, site on 6/14/05. A second package, containing work related non-radioactive items, that had been shipped at the same time was received on 6/8/06. The device was in the custody of UPS at the time of the loss. UPS tracking system indicates the package was scanned in AK. Per the licensee, UPS reported on 6/19/06 and on 6/29/06 that its internal investigation had not yet found the missing item. Licensee filed incident report with Anchorage Police Department. The UPS missing package investigation is ongoing."

The site of the event and last known location was UPS, 200 West 34th Avenue, Anchorage, AK.

MA Report 7/31/06, Docket # 07-6484


* * * UPDATE ON 8/3/06 AT 1000 EST BY J KOZAL * * *


Informed the Canadian government of above event via e-mail.


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.

This source is not amongst those sources or devices identified by the IAEA Code of Conduct for the Safety & Security of Radioactive Sources to be of concern from a radiological standpoint. Therefore is it being categorized as a less than Category 3 source

To top of page
General Information or Other Event Number: 42742
Rep Org: OHIO BUREAU OF RADIATION PROTECTION
Licensee: H. C. NUTTING COMPANY
Region: 3
City: CINCINNATI State: OH
County:
License #: 31210310024
Agreement: Y
Docket:
NRC Notified By: MICHAEL SNEE
HQ OPS Officer: ARLON COSTA
Notification Date: 07/31/2006
Notification Time: 12:51 [ET]
Event Date: 07/30/2006
Event Time: [EDT]
Last Update Date: 07/31/2006
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
Person (Organization):
KENNETH O'BRIEN (R3)
GREG MORELL (NMSS)
ILTAB EMAIL ()

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

Event Text

OHIO AGREEMENT STATE REPORT - STOLEN MOISTURE DENSITY GAUGE

The State provided the following information via email:

"The Bureau was informed by the RSO of the H.C. Nutting Company (Ohio license # 31210310024) on July 31, 2006 that a moisture density gauge (Troxler model 3430, serial # 23699) was stolen from the back of a truck parked in a closed garage at a residence in Columbus, Ohio. A lock and chain were cut to gain access to the gauge. The theft occurred between 2:30 PM and 8:30 PM on July 30, 2006. A report was filed with the Columbus Police Department. The [Ohio] Bureau is investigating."

The gauge contains two sealed sources: Cs-137 (9 millicuries) and Am-241:Be (44 millicuries).

OH Incident Number: OH2006-061.

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.

To top of page
Power Reactor Event Number: 42751
Facility: GINNA
Region: 1 State: NY
Unit: [1] [ ] [ ]
RX Type: [1] W-2-LP
NRC Notified By: DOUG GOMEZ
HQ OPS Officer: BILL GOTT
Notification Date: 08/02/2006
Notification Time: 18:41 [ET]
Event Date: 08/02/2006
Event Time: 11:27 [EDT]
Last Update Date: 08/03/2006
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(v)(A) - POT UNABLE TO SAFE SD
Person (Organization):
PAT FINNEY (R1)

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

POST CONTINGENCY LOW VOLTAGE ALARM

"The Rochester Gas and Electric (RG&E) Energy Control Center (ECC) notified Ginna Operations that the Post Contingency Low Voltage Alarm was received for the off site power system. Ginna Operations entered procedure O-6.9, operating Limits for Ginna Station Transmission, and declared the offsite power inoperable per ITS 3.8.1[72 hour LCO]. Per NUREG-1022, section 3.2.7, if either offsite power or onsite emergency power is unavailable to the plant, it is reportable per 50.72(b)(3)(v)(A) regardless of whether the other system is available.

"The RG&E Energy Control Center (ECC) monitors 115 kV voltage using their State Estimation and Contingency Analysis System. The State Estimation portion of the system evaluates real time system power flow and voltages on the 115 and 345 kV transmission systems. The Contingency Analysis portion analyzes the voltage effect of a Ginna main generator trip concurrent with worst case accident loading. If the Station 13A voltage would drop below the minimum required voltage for offsite power alignment a Ginna Post Contingency Low Voltage Alarm occurs.

"If the main generator should trip, then the absence of a Post Contingency Low Voltage Alarm on the RG&E State Estimation and Contingency Analysis System will ensure that the subsequent offsite 115kV system voltage transient will not result in Ginna Station experiencing an under voltage condition on the 480V Safeguard Busses.

"The RG&E ECC notified Ginna operations that the Post Contingency Low Voltage Alarm cleared at 1408 EDST on 08/02/2006 and the LCO for ITS 3.8.1 was exited at 1704 after observation of grid stability. The plant was maintained at 100% steady state conditions throughout the event."

The licensee notified the NRC Resident Inspector.

* * * UPDATE FROM KYLE GARNISH TO W. GOTT AT 1430 ON 08/03/06 * * *

"This is an additional notification for EN #42751 that was reported on 8/2/06 for offsite power being declared inoperable. A subsequent investigation revealed that offsite power was also inoperable on 7/17/2006 from 1427 to 1448 and on 8/1/2006 from 1022 to 1843 for which a notification was not completed."

The licensee notified the NRC Resident Inspector.

Notified R1DO P. Finney

Page Last Reviewed/Updated Friday, March 30, 2012
Friday, March 30, 2012