ENS 47958

v t e ENS Event
18:00 May 24, 2012
Title	Density Gauge Shutter Failure
Event Description	During a routine bi-annual periodic inspection, a density gauge with a 4 milliCurie Cs-137 source was identified to have a stuck shutter. The gauge was an Ohmart Vega Model SHF1-A, S/N 0964C0. The instrument is permanently installed in an isolated tower area, and this event did not result in exposure to any personnel. The licensee plans on having the gauge repaired by the manufacturer. The licensee notified R3 (Bramnik). 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 47958 +/-
Where
Dow Corning, Midland Plant Midland, Michigan (NRC Region 3)
License number:	21-08362-12
Organization:	Dow Corning
Reporting

10 CFR 30.50(b)(2), Licensed Material Protection Equipment Failure
Time - Person (Reporting Time:+-2.52 h-0.105 days <br />-0.015 weeks <br />-0.00345 months <br />)
Opened:	Mike Whelton 15:29 May 24, 2012
NRC Officer:	Dong Park
Last Updated:	May 24, 2012
47958 - NRC Website
v • d • e

v t e Emergency Notification System
Dow Corning, Midland Plant with 10 CFR 30.50(b)(2)
WEEKMONTHYEAR2012-09-22T02:30:00 [Table view]
[ENS list for Dow Corning, Midland Plant]

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