| U.S. Nuclear Regulatory Commission
Operations Center Event Reports For
01/05/2007 - 01/08/2007 ** EVENT NUMBERS ** |
 | General Information or Other | Event Number: 43069 | Rep Org: FLORIDA BUREAU OF RADIATION CONTROL
Licensee: HDR CONSTRUCTION CORP
Region: 1
City: TAMPA State: FL
County: POLK
License #: 2763-1
Agreement: Y
Docket:
NRC Notified By: STEVE FURNACE
HQ OPS Officer: BILL HUFFMAN | Notification Date: 01/02/2007
Notification Time: 10:37 [ET]
Event Date: 01/01/2007
Event Time: 20:30 [EST]
Last Update Date: 01/02/2007 | Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
| Person (Organization):
RAYMOND LORSON (R1)
JOE GIITTER (NMSS)
ILTAB VIA E-MAIL ()
|
| This material event contains a "Less than Cat 3" level of radioactive material. | Event Text AGREEMENT STATE REPORT - FLORIDA - STOLEN MOISTURE DENSITY GAUGE.
A truck belonging to the licensee flipped over on a highway in Polk County, FL on January 1, 2007, at approximately 8 or 9 pm. The truck was carrying a Humboldt Model 5001EZ moisture density gauge (nominal 50 millicuries Am-241/Be and 10 millicuries Cs-137). The driver was unhurt and walked to a local business to report the accident leaving the gauge unattended. The gauge was stolen while the driver was gone. Police were notified and a report filed. The gauge was locked inside of the locked case and chained to the vehicle.
FL report #FL07-001
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. |
| Power Reactor | Event Number: 43076 | Facility: COOPER
Region: 4 State: NE
Unit: [1] [ ] [ ]
RX Type: [1] GE-4
NRC Notified By: STEVE WHEELER
HQ OPS Officer: JEFF ROTTON | Notification Date: 01/04/2007
Notification Time: 23:46 [ET]
Event Date: 01/04/2007
Event Time: 17:43 [CST]
Last Update Date: 01/05/2007 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
| Person (Organization):
TROY PRUETT (R4)
|
| 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 HIGH RANGE EFFLUENT RADIATION MONITORS DECLARED INOPERABLE DUE TO COMMON CAUSE FAILURE
"At 17:43 CST Cooper Nuclear Station declared the three High Range Kaman Effluent radiation monitors inoperable due to a common cause failure mechanism. The affected Kamans monitor the Elevated Release Point exhaust, the Turbine Building ventilation exhaust and the Radwaste/ Augmented Radwaste Building ventilation exhaust during accident conditions. The identified common failure mechanism results in the installed, movable calibration sources spuriously inserting into the monitors, causing them to indicted abnormally high.
"This condition is being reported under 50.72 as a loss of Emergency Preparedness Capabilities due to the potentially inaccurate indications of the High Range Building Exhaust radiation monitors and the Elevated Release Point Effluent radiation monitor."
The NRC Resident Inspector was notified of this event by the licensee. |
| General Information or Other | Event Number: 43077 | Rep Org: 3M CORPORATION ST PAUL
Licensee: 3M CORPORATION ST PAUL
Region: 4
City: BROOKINGS State: SD
County:
License #: 22-00057-03
Agreement: N
Docket:
NRC Notified By: NICK BAKES
HQ OPS Officer: JOHN MacKINNON | Notification Date: 01/05/2007
Notification Time: 10:14 [ET]
Event Date: 01/05/2007
Event Time: 08:00 [MST]
Last Update Date: 01/05/2007 | Emergency Class: NON EMERGENCY
10 CFR Section:
INFORMATION ONLY
| Person (Organization):
TROY PRUETT (R4)
GREG MORELL (NMSS)
|
| This material event contains a "Less than Cat 3" level of radioactive material. | Event Text MISSING TRITIUM SIGN
3M Corporation Office located in Saint Paul, Minnesota, was notified this morning from their office located in Brookings, South Dakota, that during a semi annual sealed source inventory it was discovered that a tritium sign containing 20 curies of tritium, as of May 1998, was found to be missing. The on-site Radiation Safety Officer is starting a plant investigation process to determine to try and find the missing tritium sign. The sign was accounted for during their previous semi annual sealed source inventory in July 2006.
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 |
| Fuel Cycle Facility | Event Number: 43080 | Facility: PADUCAH GASEOUS DIFFUSION PLANT
RX Type: URANIUM ENRICHMENT FACILITY
Comments: 2 DEMOCRACY CENTER
6903 ROCKLEDGE DRIVE
BETHESDA, MD 20817 (301)564-3200
Region: 2
City: PADUCAH State: KY
County: McCRACKEN
License #: GDP-1
Agreement: Y
Docket: 0707001
NRC Notified By: STEVE TOELLE
HQ OPS Officer: PETE SNYDER | Notification Date: 01/05/2007
Notification Time: 17:34 [ET]
Event Date: 11/08/2006
Event Time: 12:00 [CST]
Last Update Date: 01/05/2007 | Emergency Class: NON EMERGENCY
10 CFR Section:
21.21 - UNSPECIFIED PARAGRAPH
| Person (Organization):
CHARLIE PAYNE (R2)
MICHAEL MARKLEY (NMSS)
OMID TABATABAI (NRR)
| Event Text DEFECT IDENTIFIED IN CRANE BRAKE CALIPER MOUNTING PIN
United States Enrichment Corporation (USEC) identified a defect in a Continental Brake Model No. 95400 crane hoist drum hydraulic brake caliper mounting pin (part no. 3954022). The firm that supplied the item was Continental Brake Equipment Company, Longboat Key, Florida. The item is a commercial grade item, dedicated for use as a Basic Component upon receipt inspection.
The defect involved errors in the machining of a groove which accepts a retaining ring to hold the caliper mounting pin in place. Specifically, the grooves were machined too shallow and too narrow to properly accept and hold the retaining ring. The result is that during use the retaining ring may dislodge from the pin, allowing the pin to loosen. This happened in the certificate holder's C-315 facility during use.
A loose mounting pin can result in the brakes not performing its function as a hoist brake to prevent the uncontrolled lowering of a UF6 cylinder. Per the faxed USEC report: "Failure of the crane hoist resulting in the drop of a cylinder containing liquid UF6 is identified in the PGDP accident analysis as resulting in off-site uranium exposures exceeding the guidelines established for determining a substantial safety hazard."
USEC has inspected all subject mounting pins in service and on-hand. All defective mounting pins were removed from service or shelves. USEC has not communicated with other specific purchasers or licensees but they recommend that users of cranes with similar brakes inspect the subject caliper pins for engagement. |
| Power Reactor | Event Number: 43081 | Facility: ROBINSON
Region: 2 State: SC
Unit: [2] [ ] [ ]
RX Type: [2] W-3-LP
NRC Notified By: HENRY T CURRY
HQ OPS Officer: JASON KOZAL | Notification Date: 01/06/2007
Notification Time: 10:00 [ET]
Event Date: 01/06/2007
Event Time: 10:00 [EST]
Last Update Date: 01/10/2007 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
| Person (Organization):
CHARLIE PAYNE (R2)
|
| 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 LOSS OF SPDS PARAMETER DISPLAY DUE TO PLANNED MODIFICATION
"At 0904 hours EST, on January 6, 2007, the Emergency Response Facility Information System (ERFIS) computer system was removed from service to perform a planned modification of the ERFIS power supply system. The expected duration of ERFIS inoperability is approximately 2 hours. The ERFIS computer system provides monitoring and communications capability for plant data systems including the Emergency Response Data System (ERDS), Safety Parameter Display System (SPDS), Meteorological Data link system, and the Inadequate Core Cooling Monitor (ICCM). The loss of ERFIS requires alternate methods, as described in plant procedures, to be used for the above-described functions. Therefore, it is expected that appropriate assessment of plant conditions, notifications, and communications could still be made, if required, during the time that the ERFIS Computer system is inoperable. This report is being made in accordance with 10 CFR 50.72(b)(3)(xiii), which is any event that results in a major loss of emergency assessment capability, offsite response capability, or offsite communications capability. As previously stated, alternate means remained available to assess plant conditions, make notifications, and accomplish required communications, as necessary. An additional message will be provided when the ERFIS is restored."
The licensee will notify the NRC Resident Inspector.
* * * UPDATE PROVIDED BY HENRY CURRY TO JEFF ROTTON AT 1158 EST ON 01/06/07 * * *
ERFIS computer has been returned to operable status at 1146 EST. Licensee notified NRC Resident Inspector.
Notified R2DO(Payne) | |