| U.S. Nuclear Regulatory Commission
Operations Center Event Reports For
07/25/2012 - 07/26/2012 ** EVENT NUMBERS ** |
 | Agreement State | Event Number: 48115 | Rep Org: IOWA DEPARTMENT OF PUBLIC HEALTH
Licensee: SSAB IOWA, INC.
Region: 3
City: MUSCATINE State: IA
County:
License #: 0259170FG
Agreement: Y
Docket:
NRC Notified By: RANDAL S DAHLIN
HQ OPS Officer: JOHN SHOEMAKER | Notification Date: 07/17/2012
Notification Time: 16:11 [ET]
Event Date: 05/17/2012
Event Time: [CDT]
Last Update Date: 07/17/2012 | Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
| Person (Organization):
LAURA KOZAK (R3DO)
FSME EVENTS RESOURCE (EMAI)
| Event Text STUCK OPEN SHUTTER ON SEALED SOURCE GAUGE
The following report was received via email.
"During an unannounced health, safety, and security inspection conducted on July 12, 2012 at SSAB Iowa, Inc. the Agency [Iowa Department of Public Health] discovered that the licensee had a shutter fail open on an EG & G Berthold, model LB 300 MLT, serial number 1739-10-05 containing approximately 50 millicuries of Cobalt-60. This failure occurred on May 17, 2012 while the device was measuring the level of molten metal in a caster. On May 22, 2012 a contractor arrived on site and repaired the shutter. Cause of failure appears to have been binding due to the extreme heat conditions of the castor. Precautions were taken to ensure that no individual received a radiation dose and normal operations continued until the shutter was repaired."
Iowa Event Report # IA 120003 |
| Non-Agreement State | Event Number: 48119 | Rep Org: KAKIVIK ASSET MANAGEMENT
Licensee: KAKIVIK ASSET MANAGEMENT
Region: 4
City: KAPARIK OIL FIELD State: AK
County:
License #: 50-27667-01
Agreement: N
Docket:
NRC Notified By: PATTON D. PETTIJOHN
HQ OPS Officer: DONALD NORWOOD | Notification Date: 07/19/2012
Notification Time: 17:18 [ET]
Event Date: 07/01/2012
Event Time: 23:45 [YDT]
Last Update Date: 07/19/2012 | Emergency Class: NON EMERGENCY
10 CFR Section:
30.50(b)(2) - SAFETY EQUIPMENT FAILURE
| Person (Organization):
DAVID PROULX (R4DO)
FSME via E-mail ()
| Event Text UNABLE TO RETRACT SOURCE INTO RADIOGRAPHY CAMERA
"On July 1, 2012 at 11:45 pm, a radiography crew using remote access technology at the Kuparuk Oil Field on the North Slope of Alaska had the jig, collimator and guide tube dislodge and fall while cranking out the source. With the added weight of the connected jig and collimator, the guide tube ended up hanging straight down 30 feet above a platform floor, creating a sharp bend where the guide tube connects to the camera. The crew was not able to retract the source immediately after the accident. Kakivik's onsite Radiation Safety Supervisor and the RSO were immediately notified. The 2 mr/hr boundary was re-surveyed and adjusted. Constant surveillance and control of the boundary was maintained. Per guidance from the Kakivik's emergency procedures and RSO, the exposure device was to be lowered by ropes onto a suitable working surface. During the camera decent, the guide tube came in contact with piping and was straightened sufficiently to allow the source to be safely cranked into the fully
shielded and secured position while still suspended from the ropes. The source was fully shielded within the exposure device by 2:13 am July 2nd. The operation to lower the camera to straighten the guide tube and crank in the source to the fully shielded position took approximately one minute. No exposure to the public or overexposure to Kakivik employees or unauthorized entry into the restricted area was made. All the radiographic equipment was inspected after the accident. The ball connector at the end of the crank drive cable was bent and was replaced. The outside of the guide tube was damaged and taken out of service. The camera including the source pigtail connector was not damaged and was returned to service.
"After investigation, the cause of the incident was determined to be the improper use of a magnetic jig that was attached to a surface that did not have sufficient force to hold the combined weight of jig, collimator, guide tube and source.
"The corrective actions taken to prevent recurrence included writing a company policy that clearly states that a radiographer may not use magnetic jigs to support the guide tube and collimator unless it is also supported with ratchet straps or a chain wrench or unless the magnetic jig is being used on a flat steel floor surface. This policy will be required to be read and adhered to by all current and new radiographers. This incident will be reviewed with all the Kakivik radiographers and assistants by the RSO or RSS."
There were no injuries as a result of this event and there were no overexposures to members of the public or employees. |
| Power Reactor | Event Number: 48127 | Facility: HARRIS
Region: 2 State: NC
Unit: [1] [ ] [ ]
RX Type: [1] W-3-LP
NRC Notified By: JUSTIN KELLY
HQ OPS Officer: VINCE KLCO | Notification Date: 07/24/2012
Notification Time: 13:43 [ET]
Event Date: 07/24/2012
Event Time: 05:55 [EDT]
Last Update Date: 07/25/2012 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
| Person (Organization):
BINOY DESAI (R2DO)
|
| 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 TECHNICAL SUPPORT CENTER OUT OF SERVICE
"At approximately 0555 [EDT] on 07/24/2012, the AH-17 TSC Cooling Fan was found with the cooling system not fully working. The fan is running, but the condensing compressor is not. Repairs are being planned and will be worked immediately. This event is reportable per 10 CFR 50.72(b)(3)(xiii) as described in NUREG-1022, Revision 2. The on call Site Emergency Coordinator and Emergency Response Manager have been notified. The Alternate TSC is available per plant procedure, if required."
The licensee notified the NRC Resident Inspector.
* * * UPDATE FROM CASPER JERNIGAN TO JOHN SHOEMAKER AT 0929 EDT, ON 07/25/12 * * *
TSC cooling system repairs have been completed and the system has been returned to normal.
The licensee notified the NRC Resident Inspector.
Notified the R2DO (Franke). |
| Power Reactor | Event Number: 48132 | Facility: THREE MILE ISLAND
Region: 1 State: PA
Unit: [1] [ ] [ ]
RX Type: [1] B&W-L-LP,[2] B&W-L-LP
NRC Notified By: DAVID ANDERS
HQ OPS Officer: VINCE KLCO | Notification Date: 07/25/2012
Notification Time: 14:45 [ET]
Event Date: 07/25/2012
Event Time: 14:30 [EDT]
Last Update Date: 07/25/2012 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(xi) - OFFSITE NOTIFICATION
| Person (Organization):
MEL GRAY (R1DO)
|
| 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 PRESS RELEASE DUE TO AN ELEVATED LEVEL OF TRITIUM DETECTED ON SITE
"TMI is issuing a press release and performing courtesy stakeholder communications as a result of an elevated level of tritium detected in one of 55 on-site ground water monitoring wells near the plant structure. The tritium concentration in the well is contained to the site and well [within] EPA drinking water standards. TMI is performing voluntary communications in accordance with NEI 07-07 Industry Ground Water Protection Initiative and contacting local and state stakeholders as a courtesy. As a result of the press release, a four-hour notification is being made per 10 CFR 50.72 (b)(2)(xi)."
The licensee notified the NRC Resident Inspector, the Commonwealth of Pennsylvania and local counties (Dauphin and York). |
| Power Reactor | Event Number: 48133 | Facility: GRAND GULF
Region: 4 State: MS
Unit: [1] [ ] [ ]
RX Type: [1] GE-6
NRC Notified By: FRANK WEAVER
HQ OPS Officer: VINCE KLCO | Notification Date: 07/25/2012
Notification Time: 17:32 [ET]
Event Date: 07/25/2012
Event Time: 15:34 [CDT]
Last Update Date: 07/25/2012 | Emergency Class: NON EMERGENCY
10 CFR Section:
72.74 - CRIT LOSS/THEFT OF SNM
| Person (Organization):
JAMES DRAKE (R4DO)
MATTHEW HAHN (ILTA)
SHER BAHADUR (NRR)
JEFFERY GRANT (IRD)
| | This material event contains a "Less than Cat 3" level of radioactive material. |
| Unit | SCRAM Code | RX CRIT | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode | | 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
| This material event contains a "Less than Cat 3" level of radioactive material. | Event Text UNACCOUNTED FOR SOURCE RANGE MONITOR DETECTOR
"During annual physical inventory of Special Nuclear Material (SNM) conducted at Grand Gulf Nuclear Station (GGNS), a replacement Source Range Monitor (SRM) detector could not be accounted for. The SRM detector was being stored in the refuel floor storage locker after maintenance activities during RF18. This detector did not function and was removed prior to the start-up therefore, the SRM detector was not subjected to a critical reactor. Actions continue to locate the missing SRM detector. There is no evidence of sabotage or tampering associated with this activity."
The licensee notified the NRC Resident Inspector.
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
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 |
| Power Reactor | Event Number: 48134 | Facility: WOLF CREEK
Region: 4 State: KS
Unit: [1] [ ] [ ]
RX Type: [1] W-4-LP
NRC Notified By: MARK JENKINS
HQ OPS Officer: VINCE KLCO | Notification Date: 07/25/2012
Notification Time: 22:14 [ET]
Event Date: 07/25/2012
Event Time: 16:02 [CDT]
Last Update Date: 07/25/2012 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(ii)(B) - UNANALYZED CONDITION
| Person (Organization):
JAMES DRAKE (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 IDENTIFICATION OF A DEGRADED OR UNANALYZED CONDITION
"At 1602 [CDT], Engineering personnel notified the control room that during review of a pipe stress calculation it was identified that non-conservative or incorrect methodologies were used in the calculation. This calculation was for a modification to install four; 3 [inch] drain lines between the Essential Service Water (ESW) (safety) and the Service Water (SW) (non-safety) in 1991. A preliminary ME101 stress analysis performed, which corrects the above-identified discrepancies, indicates that the pipe stresses at the drain line weldolet connection exceed the ASME code of record allowable stresses by approximately 50%, when the revised Stress Intensification Factor (SIF) is applied. This modification affected both trains (A & B) ESW trains.
"The normal system alignment uses the SW water to supply the ESW, then during accident conditions the SW and ESW systems isolate from each other so that two redundant separate train isolation valves isolate the ESW system. These 3 [inch] drain lines are located in the section of piping that is isolated from the ESW and SW systems.
"At the time of notification 'A' ESW was isolated from SW and 'B' ESW was in normal system alignment. 'B' ESW was declared inoperable and action was taken to separate the SW and ESW and isolate the 3 [inch] drain valves. With this action complete the non-conforming components have been removed from service and OPERABILITY of the ESW has been restored.
"This condition is been reported per 10 CFR 50.72(b)(3)(ii)(B).
"The NRC Resident Inspector has been notified." | |