| U.S. Nuclear Regulatory Commission
Operations Center Event Reports For
10/14/2009 - 10/15/2009 ** EVENT NUMBERS ** |
 | Other Nuclear Material | Event Number: 45431 | Rep Org: OHIO DEPARTMENT OF HEALTH
Licensee: PRODUCERS SERVICE CORPORATION
Region: 3
City: ZANESVILLE State: OH
County:
License #:
Agreement: Y
Docket:
NRC Notified By: MICHAEL SNEE
HQ OPS Officer: DONG HWA PARK | Notification Date: 10/14/2009
Notification Time: 09:12 [ET]
Event Date: 10/12/2009
Event Time: [EDT]
Last Update Date: 10/14/2009 | Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
| Person (Organization):
ERIC DUNCAN (R3DO)
ANGELA MCINTOSH (FSME)
|
| This material event contains a "Less than Cat 3" level of radioactive material. | Event Text AGREEMENT STATE REPORT - LOST GAUGE FOUND WITH SHUTTER STUCK OPEN
The following event was received from the state via e-mail:
"A radiation alarm was tripped at PSC Metals from a load of scrap metal coming from Polk Metal and Iron located in Zanesville, Ohio. The load of scrap metal was returned to Polk Metal and Iron. The BRP [Bureau of Radiation Protection] was informed on October 12 and dispatched an inspector to Polk Metal and Iron on October 13. Based on the information on the device [Texas Nuclear model # 5190 SN B5283 containing 200 mCi of Cs-137] the BRP contacted the manufacturer and learned that the device was initially distributed to Producers Service Corporation, also located in Zanesville.
"The Producers Service Corporation was contacted and sent a representative to meet the BRP inspector at the Polk site to retrieve the gauge. The inspector surveyed the gauge and found that the shutter was stuck open with an in-beam dose rate of 200 mR/hr at six inches. The shutter mechanism was freed and verified closed by the inspector. The device was transported less than a mile to the Producers Service Corp facility and is now secured in a vacant office in a secured building. The inspector wipe tested the device and found it to be free of contamination. Producers Service Corporation is in the process of contacting the device manufacturer to make disposal arrangements. The device was a generally licensed device distributed on September 9, 1986.
"The inspector determined that the device was inadvertently sent to the scrap yard and that Producers Service Corporation was not attempting to illegally dispose of the device.
"Device Name: Fixed Gauge
Manufacturer: Texas Nuclear
Model Number: 5190
Serial Number: B5283"
Ohio Report No. OH09-031
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
Although IAEA categorization of this event is typically based on device type, the staff has been made aware of the actual activity of the source, and after calculation determines that it is a Less than Cat 3 event.
Note: the value assigned by device type "Category 3" is different than the calculated value "Less than Cat 3" |
| Power Reactor | Event Number: 45432 | Facility: INDIAN POINT
Region: 1 State: NY
Unit: [ ] [3] [ ]
RX Type: [2] W-4-LP,[3] W-4-LP
NRC Notified By: DAN LYON
HQ OPS Officer: DONALD NORWOOD | Notification Date: 10/14/2009
Notification Time: 17:09 [ET]
Event Date: 10/14/2009
Event Time: 15:00 [EDT]
Last Update Date: 10/14/2009 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(v)(A) - POT UNABLE TO SAFE SD
| Person (Organization):
TODD JACKSON (R1DO)
|
| 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 SAFETY SYSTEM FUNCTIONAL FAILURE - ALTERNATE SAFE SHUTDOWN SOURCE RANGE NEUTRON MONITOR INOPERABLE
"At 1500 hours on October 14, 2009, the power supply for neutron source range detector N-38 was determined to be unable to provide reliable power to detector N-38 and the detector was declared inoperable. Technical Specification (TS) 3.3.4 (Remote Shutdown) Basis Table 3.3.4-1, Function 1.a requires one channel. Technical Requirements Manual (TRM) 3.3.D (Appendix R Alternate Safe Shutdown Instrumentation) requires entry into the condition referenced in TRM Table 3.3.0-1 and entry into the applicable related TS referenced in TRM Table 3.3.D-1 when one or more required functions with one or more required instruments in Table 3.3.D-1 [are] inoperable. TRM Table 3.3.D-1, TRO 3.3.D1, neutron flux (source range only) lists and specifies detector N-38 only and references TS 3.3.4 Basis Table 3.3.4-1, Item 1a. Although there is an operable redundant source range neutron detector N-39, the only source range detector which has indication remote from the control room is N-38. Therefore, the safety function for safe shutdown remote from the control room for reactivity control in accordance with TS Basis Table 3.3.4-1, Function 1a can not be met with N-38 inoperable. The inability to meet the TS condition is a safety system functional failure. Actions are in progress to provide a reliable power supply for N-38. Unit 2 is at 100% and is not affected by the condition."
The licensee notified the NRC Resident Inspector. | |