ENS Event | |
|---|---|
07:00 Sep 16, 2009 | |
| Title | Four Defective Moisture Density Gauges |
| Event Description | As part of the pre-operational check at the Defense Distribution Depot in Tracy, CA, operators discovered that four of their CPN Model MC-1 Moisture Density Gauges were defective. The 4 moisture density gauges were manufactured approximately 30 years ago and each contains two sources; 10 mCi Cs-137 and 50 mCi Americium-241/Be (nominal). These gauges will not be returned to the manufacturer for evaluation and repair, but rather disposed of at an approved facility. The 4 units are currently locked in their storage containers, and those containers are locked inside another locked cabinet at the Defense Distribution Depot in Tracy, CA.
The four gauges serial number and the reason for being defective are as follows: 1) s/n M17092033 - Locking mechanism does not work. 2) s/n M17112087 - Locking mechanism does not work. 3) s/n M17092041 - Handle broken. 4) s/n M17071988 - Broken guide tube. The licensee notified NRC Region 3 Office. |
| Where | |
|---|---|
| Us Army Tracy, California (NRC Region 4) | |
| License number: | 21-01222-05 |
| Organization: | Us Army |
| Reporting | |
| 10 CFR 30.50(b)(2), Licensed Material Protection Equipment Failure | |
| Time - Person (Reporting Time:+34.25 h1.427 days <br />0.204 weeks <br />0.0469 months <br />) | |
| Opened: | Karen Mcguire 17:15 Sep 17, 2009 |
| NRC Officer: | John Knoke |
| Last Updated: | Sep 17, 2009 |
| 45360 - NRC Website | |
Us Army with 10 CFR 30.50(b)(2) | |
WEEKMONTHYEARENS 456672010-01-27T05:00:00027 January 2010 05:00:00
[Table view]10 CFR 30.50(b)(2) Mositure Density Gauge Received with Inoperable Locking Mechanism ENS 453602009-09-16T07:00:00016 September 2009 07:00:00 10 CFR 30.50(b)(2) Four Defective Moisture Density Gauges ENS 435242007-07-24T04:00:00024 July 2007 04:00:00 10 CFR 30.50(b)(2) Failed Source Shield Lock on Moisture Density Gauge ENS 434682007-06-26T04:00:00026 June 2007 04:00:00 10 CFR 30.50(b)(2) Damaged Campbell Pacific Moisture Density Gauge ENS 423362006-02-10T06:00:00010 February 2006 06:00:00 10 CFR 30.50(b)(2) Potentially Defective Moisture Density Gauge Locking Mechanism 2010-01-27T05:00:00 | |