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| Entered date | Event description | |
|---|---|---|
| ENS 53360 | 23 April 2018 13:38:00 | A helicopter went down carrying two Americium sources totaling 11 microCuries. The crash site was searched but the sources were not located. The sources were declared lost, possibly buried at the crash site. The crash site is located within a firing range and personnel are not expected to be exposed. A written report will be submitted to the NRC. 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 |