ENS 52866

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v t e 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

ENS 52866 +/-
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
v • d • e

v t e Emergency Notification System
Dept Of Navy Radiation Safety Cmte with 10 CFR 20.2201(a)(1)(ii)
WEEKMONTHYEAR2017-07-19T21:30:00 [Table view]
[ENS list for Dept Of Navy Radiation Safety Cmte]

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