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| Start date | Reporting criterion | Title | Event description | System | LER | |
|---|---|---|---|---|---|---|
| ENS 52135 | 3 June 2016 04:00:00 | Information Only | Loss of General Licensed Material Check Sources | On June 3, 2016, the US Air Force determined that two (2) check sources containing Thorium-232 (45 nCi and 13 nCi) were missing at the Aviano Air Base located in Italy. These two generally licensed sources are used as check sources for the ADM-300 survey meter. The licensee contacted NRC RIV (Michelle Simmons) who recommended that the licensee report the loss per 10 CFR 31.5(c)(10). 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 | ||
| ENS 49766 | 1 October 2013 05:00:00 | 10 CFR 20.2201(a)(1)(ii) | Loss of Radioactive Material | The following report was received via email; 1. IAW 10 CFR 20.2201(a)(1)(ii), we are providing a written report for the loss of radioactive material. The loss of material was reported on 27 Jan 14; 1) telephonically to NRC Operations Center, Event No. 49766 and 2) via E-mail to NRC, Region IV (Ms. Cook). The following information addresses the reporting requirements: a. Description of the licensed material: The subject device contained nickel 63 (Ni-63), one source, at 15 millicuries. The source is encapsulated in a hollow brass cylinder which in turn is sealed in a ceramic shield as referenced in Sealed Source & Device Registry (SS&DR) NR-0163-D-102-E (19 Oct 2010). The subject device was generally licensed (GLD) and used by USAF Security Forces Personnel (75th SFS) of Hill AFB, Ogden, UT. b. Description of circumstances for loss: The missing Ionscan 500DT was added to the Installation Radiation Safety Officers inventory of all GLDs on Hill AFB in October 2007. The serial number of the missing source is 50083. It was surveyed semi-annually through May 2013. During the November 2013 leak test/inventory of GLDs, the device was not at the security gate where it has always been. The 75 SFS storage warehouse was checked and it was not there either. c. Statement of disposition: 75 SFS personnel were asked multiple times about the disposition of the item. On 11 December 2013, they reported the Ionscan was no longer in their possession. They reported that the item was dropped and damaged during transport. An Airman was assigned to locate a disposal location that would be able to take the item and was directed to dispose of it there. Later the Airman reported that he had done this. The Airman was in the process of being dismissed from the Air Force at that time and is no longer in the Air Force for questioning on how he disposed of the item. Therefore, the final disposition of the item is unknown at this time. d. Exposures to individuals: Because the device contains Ni-63, which is sealed and incorporated into the Ion Mobility Spectrometer assembly, the radiation level surrounding the device would be indistinguishable from background. e. Actions taken: Requests have been made of multiple levels of 75 SFS command to obtain more specifics on the event. No additional information has been received to-date. f. Procedures/measures to rectify future loss: The installation radiation safety officer will reinforce the policies outlined in Air Force Instruction (AFI) 40-201, Managing Radioactive Materials in the United States Air Force for proper disposal of generally licensed devices. 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 | ||
| ENS 45199 | 22 June 2009 04:00:00 | 10 CFR 20.2201(a)(1)(i) | Lost Americium-241 Sources Due to Aircraft Crash | On June 22, 2009, an F-16 crashed in a remote area in the Great Salt Lake test range in the area of the Utah and Nevada borders near Hill AFB. The aircraft was carrying a Sniper Laser Targeting Pod with two Am-241 sources each with an activity of 4 microcuries (8 microcuries total). Following investigation of the crash site and aircraft remnants, the licensee has determined that the sources are lost. The licensee has previously notified NRC Region IV (Browder) of this occurrence. 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 | ||
| ENS 44468 | 4 June 2008 04:00:00 | 10 CFR 35.3047(a) | Report Involving a Patient with an Undetected Pregnancy Who Received Therapeutic I-131 Treatment | On 06/02/08, a female patient was tested for pregnancy prior to receiving a therapeutic Iodine-131 (I-131) dose at the Wilford Hall Medical Center located on Lackland AFB near San Antonio, TX. The serum screening result was negative. A dose of 149.2 millicuries I-131 was subsequently administered on 06/04/08 with no complications. On 08/13/08, the patient was informed she was pregnant. Follow-up consultation with the REAC (Radiation Emergency Assistance Center) and calculations determined that the dose to the fetus was approximately 31.5 Rad. However, since the incident occurred early in the zygote phase of development there is no anticipated adverse consequences. The Air Force Radioisotope Committee was notified of this incident on 08/27/08. | ||
| ENS 42840 | 14 September 2006 13:45:00 | 10 CFR 20.2201(a)(1)(i) | Loss of Two Americium-241 Navigation System Sources | A representative for the Air Force Master Material License reported that two 4 microCurie Am-241 sources (8 microCuries total) were lost during shipment from Eglin AFB in Florida to Robins AFB in GA. The sources are used in aircraft LANTIRN (Low Altitude Navigation and Targeting IR for Night) Pods. The shipment was made on August 30, 2006, using a commercial shipping company and was assigned a tracking number. The shipment never arrived at the destination and efforts by the shipper to locate the package have not been successful. The SSDR for the sources is FL-1116-D-01-01S. The Air Force has requested a formal letter of the circumstances of the loss and effort by the shipper to locate the missing sources. 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. | ||
| ENS 42662 | 23 June 2006 18:10:00 | 10 CFR 20.2201(a)(1)(i) | Loss of Two Americium-241 Detector Sources | A representative for the Air Force Master Material License reported that two Americium-241 sources (SSDR NR-1129-D0102-S; Model M43A1) each with a curie content of less than 300 microCuries (less than 600 microCuries total) were determined to be missing from a storage location at the Tyndall Air Force Base in Florida. The sources are used in Chemical Agent Detectors. The date of last confirmed inventory of the sources was December of 2005. The RSO at Tyndall AFB recently changed and a new inventory was conducted at which time the sources were determined to be unaccounted for. The licensee states that there is information that indicates the sources have been transferred to another AFB but that this has not yet been confirmed. Investigation into the current location of the sources is still in progress. 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 | ||
| ENS 41352 | 24 January 2005 15:35:00 | 10 CFR 20.2201(a)(1)(i) | Two Chemical Agent Alarms Discovered Missing | During a routine inventory, performed every 6 months, it was discovered that two chemical agent alarms, M8A1, each containing 250 microCuries of Americium-241 were missing at Dover Air Force Base located in Delaware. US Air Force is looking for the missing chemical agent alarms. | ||
| ENS 41098 | 6 October 2004 19:20:00 | 10 CFR 20.2201(a)(1)(i) | Missing Polonium Source | At 1520 ET on 10/06/04, Bolling Air Force Base, Washington, DC was notified that a 0.5 milliCurie Po-210 source was missing at Wright Patterson Air Force Base, Ohio. No other details were available at this time.
Upon clarification of reporting requirements with NRC Region IV, this event is subject to 10 CFR 20.2201(a)(1)(ii) and must be reported within 30-days if the source is not found." The original report was based on the original activity of 0.5 milliCuries, whereas the current activity is 2.8 microCuries and is less than the immediately reportable activity. Notified NMSS (J Hickey), R4DO (R Bywater), and R3DO (Louden) | ||
| ENS 40429 | 31 December 2003 05:00:00 | 10 CFR 20.2201(a)(1)(i) | Missing Tritium Sign | On 12/31/03 it was determined that a (1) tritium exit sign was missing from Bldg. 193 at Cannon Air Force Base in New Mexico. The sign was last observed the day before on 12/30/03. The missing sign is a Betalux-E, S/N 191736, containing a 20 curie tritium source. To date, three (3) exit signs have been reported missing during the on-going base renovation (see EN #40407). Efforts to locate the signs continue.
The licensee is amending the original report to show that the last inventory of the exit sign was in May 2003 and not 12/30. The sign was discovered missing on 12/30 and reported to the USAF on 12/31/03. Notified R1DO(Noggle), R4DO(Runyan), and NMSS(Hickey). | ||
| ENS 40407 | 18 December 2003 23:00:00 | 10 CFR 20.2201(a)(1)(i) | Missing Tritium Exit Signs | On 12/18/03 it was determined that two (2) tritium exit signs were missing at Cannon Air Force Base in New Mexico. Contractors were in the process of replacing a number of the signs and two of the signs appearing on the inventory list could not be found. The signs are made by SRB Technology (Sealed Source & Device Registration NC585S103G). The signs were purchased in 1998 with a maximum tritium activity of 25 curies and the current maximum tritium activity is 18 curies. Efforts to locate the signs continue. | ||
| ENS 40106 | 22 August 2003 05:00:00 | 10 CFR 20.2201(a)(1)(i) | Missing Exit Sign Containing Tritium | On 08/22/03, while reviewing documentation following construction, personnel at Vance Air Force Base discovered that an exit sign containing 20 Curies of Tritium was misplaced. The sign was to be replaced with an electric sign. The construction occurred in late June 03. Personnel are conducting a search for the sign. It may have been disposed of in the regular trash. |