ENS Event | |
|---|---|
21:30 Jul 19, 2017 | |
| Title | Loss of Helicopter Integrated Blade Inspection System with 500 Microcurie Strontium 90 Source |
| Event Description | At 1730 on 19 July 2017, HM-15 aircraft 13 had the Main Rotor Fairing, commonly referred to as the 'beanie', depart in flight. The 'beanie' cover is constructed of fiberglass, is circular in shape and 5 feet in diameter, weighing approximately 20 pounds. In addition to the beanie, we discovered that one of the In-flight Blade Inspection System (IBIS) Indicators also departed the aircraft. Loss of this IBIS Indicator is of concern because it contains strontium-90 which is radioactive material. Loss of this IBIS Indicator was not discovered until the aircraft shutdown on its line at Naval Station Norfolk.
Location lost: Approximately 100 miles west of Norfolk, VA over the Roanoke River near Lake Gaston. The location is just north of the Virginia / North Carolina border over the Roanoke River approximately 3 miles east of the Kerr Lake Power Plant. 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 |
| Where | |
|---|---|
| Dept Of Navy Radiation Safety Cmte Arlington, Virginia (NRC Region 1) | |
| License number: | 45-23645-0INA |
| Organization: | Dept Of Navy Radiation Safety Cmte |
| Reporting | |
| 10 CFR 20.2201(a)(1)(ii) | |
| Time - Person (Reporting Time:+18.17 h0.757 days <br />0.108 weeks <br />0.0249 months <br />) | |
| Opened: | Jerry Sanders 15:40 Jul 20, 2017 |
| NRC Officer: | Dan Livermore |
| Last Updated: | Jul 20, 2017 |
| 52866 - NRC Website | |
Dept Of Navy Radiation Safety Cmte with 10 CFR 20.2201(a)(1)(ii) | |
WEEKMONTHYEARENS 528662017-07-19T21:30:00019 July 2017 21:30:00
[Table view]10 CFR 20.2201(a)(1)(ii) Loss of Helicopter Integrated Blade Inspection System with 500 Microcurie Strontium 90 Source ENS 475292011-12-14T00:00:00014 December 2011 00:00:00 10 CFR 20.2201(a)(1)(ii) Helicopter Integrated Blade Inspection System Source Lost ENS 417132005-05-16T04:00:00016 May 2005 04:00:00 10 CFR 20.2201(a)(1)(ii) Chemical Agent Detectors Missing from Department of Navy Inventory 2017-07-19T21:30:00 | |