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 |
| 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 | |
Dow Corning, Midland Plant with 10 CFR 30.50(b)(2) | |
WEEKMONTHYEARENS 485352012-11-26T14:30:00026 November 2012 14:30:00
[Table view]10 CFR 30.50(b)(2) Process Instrument Shutter Failure ENS 483352012-09-22T02:30:00022 September 2012 02:30:00 10 CFR 30.50(b)(2) Density Gauge Shutter Failure ENS 479582012-05-24T18:00:00024 May 2012 18:00:00 10 CFR 30.50(b)(2) Density Gauge Shutter Failure ENS 469132011-05-31T21:00:00031 May 2011 21:00:00 10 CFR 30.50(b)(2) Process Instrument Shutter Failure 2012-09-22T02:30:00 | |