ENS 46530: Difference between revisions
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StriderTol (talk | contribs) Created page by program invented by Mark Hawes |
StriderTol (talk | contribs) Created page by program invented by StriderTol |
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| event date = 01/04/2011 09:00 CST | | event date = 01/04/2011 09:00 CST | ||
| last update date = 01/10/2011 | | last update date = 01/10/2011 | ||
| title = Tritium Vial Cracked During Maintenance | | title = Tritium Vial Cracked During Maintenance of Mortar Sight Unit | ||
| event text = On 4 January 2011 at 0900 hrs an Army National Guard employee was performing maintenance on a M64A1 sight unit in an attempt to remove the course elevation deflection scale on the sight unit which contained a 1 curie tritium lamp. The assembly is considered a module which is authorized by the licensee for replacement. During the removal of the scale assembly the tritium lamp was damaged. The worker immediately realized what had happened and called the local RSO to handle the incident. The State RSO was notified of the incident who in turn notified the US Army CECOM health physicist. The device was double bagged by the local RSO and placed in a designated LLRW storage area for future disposal. The local RSO performed contamination wipes of the device and surrounding works areas on Jan 4th. The arms room in the CSMS shop was immediately shut down and had limited access by authorized personnel. Wipe test results were received back from the Army lab on 6 Jan that indicated tritium contamination of 60 K dpm on the device itself and a few thousand dpm of the surrounding work bench. The RSO proceeded to decontaminated the affected contaminated areas and rewiped the work area to release it from radiological control. The second contamination survey (after decon) showed tritium contamination significantly reduced. At the time of this report the licensee does not have the final test results. The maintenance person involved in the incident was required by the licensee to have a tritium bioassay taken. Tritium bioassay results were not available at the time of the report. Investigation by the licensee is being conducted as to determine how the device was damaged during maintenance. | | event text = On 4 January 2011 at 0900 hrs an Army National Guard employee was performing maintenance on a M64A1 sight unit in an attempt to remove the course elevation deflection scale on the sight unit which contained a 1 curie tritium lamp. The assembly is considered a module which is authorized by the licensee for replacement. During the removal of the scale assembly the tritium lamp was damaged. The worker immediately realized what had happened and called the local RSO to handle the incident. The State RSO was notified of the incident who in turn notified the US Army CECOM health physicist. The device was double bagged by the local RSO and placed in a designated LLRW storage area for future disposal. The local RSO performed contamination wipes of the device and surrounding works areas on Jan 4th. The arms room in the CSMS shop was immediately shut down and had limited access by authorized personnel. Wipe test results were received back from the Army lab on 6 Jan that indicated tritium contamination of 60 K dpm on the device itself and a few thousand dpm of the surrounding work bench. The RSO proceeded to decontaminated the affected contaminated areas and rewiped the work area to release it from radiological control. The second contamination survey (after decon) showed tritium contamination significantly reduced. At the time of this report the licensee does not have the final test results. The maintenance person involved in the incident was required by the licensee to have a tritium bioassay taken. Tritium bioassay results were not available at the time of the report. Investigation by the licensee is being conducted as to determine how the device was damaged during maintenance. | ||
The event occurred at the New York Army National Guard, Combined Support maintenance Shop - Arms Room in Rochester New York. | The event occurred at the New York Army National Guard, Combined Support maintenance Shop - Arms Room in Rochester New York. | ||
Latest revision as of 21:08, 1 March 2018
| Where | |
|---|---|
| Tacom Lcmc / Us Army National Guard Rock Island, Illinois (NRC Region 3) | |
| License number: | 12-00722-06 |
| Organization: | U.S. Army |
| Reporting | |
| 10 CFR 30.50(b)(1) | |
| Time - Person (Reporting Time:+145.37 h6.057 days <br />0.865 weeks <br />0.199 months <br />) | |
| Opened: | Thomas Gizicki 16:22 Jan 10, 2011 |
| NRC Officer: | John Shoemaker |
| Last Updated: | Jan 10, 2011 |
| 46530 - NRC Website | |