ENS Event | |
|---|---|
05:00 Nov 9, 2018 | |
| Title | Stuck Open Shutter on Process Gauge |
| Event Description | In the process of performing the inventory/shutter check it was reported on November 09, 2018 at 1030 [EST] that our [Tilden Mining Co.] Kay Ray Model #7050, Serial #1412, 200mCi, Cs-137 gauge located on 6B DTU (Deslime Thickener U/Flow) in the deslime basement had a broken handle on the shutter mechanism, rendering the shutter non-operable. Work order (1836130) was entered into Ellipse. It was determined that the area in which the gauge is located does not create an exposure hazard.
The plant process requires the shutter to remain in the open position during normal operation and does not create a hazard to individuals, the course of action will be to remove and replace the gauge at the first opportunity. Once the gauge is removed, it will be placed and locked in [a] cage. The gauge will be placed on top of the required amount of lead to remove any potential exposure hazard; surveys will be performed to confirm personal safety. |
| Where | |
|---|---|
| Tilden Mining Co Ishpeming, Michigan (NRC Region 3) | |
| License number: | 21-26748-01 |
| Organization: | Tilden Mining Co |
| Reporting | |
| 10 CFR 30.50(b)(2), Licensed Material Protection Equipment Failure | |
| Time - Person (Reporting Time:+7.63 h0.318 days <br />0.0454 weeks <br />0.0105 months <br />) | |
| Opened: | Lawrence M. Gray 12:38 Nov 9, 2018 |
| NRC Officer: | Jeff Herrera |
| Last Updated: | Nov 9, 2018 |
| 53727 - NRC Website | |
Tilden Mining Co with 10 CFR 30.50(b)(2) | |
WEEKMONTHYEARENS 539952019-04-12T12:00:00012 April 2019 12:00:00
[Table view]10 CFR 30.50(b)(2) Process Gauge Stuck Shutter ENS 537272018-11-09T05:00:0009 November 2018 05:00:00 10 CFR 30.50(b)(2) Stuck Open Shutter on Process Gauge ENS 537132015-03-19T04:00:00019 March 2015 04:00:00 10 CFR 30.50(b)(2) Process Gauge Shutter Stuck Open 2019-04-12T12:00:00 | |