ENS 54050
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ENS Event | |
|---|---|
08:18 May 5, 2019 | |
| Title | Stuck Radiography Camera Source |
| Event Description | The following information was received via E-mail:
At approximately 0018 YDT on 5/5/2019, a Kakivik radiographic crew working in Alpine, Alaska on drill site CD-4, could not retract a source under normal conditions. Once this was identified the crew initiated emergency procedures by establishing 2mR boundaries and making notifications per O&E procedures. The crew was using a QSA Global 880D device with a model A424-9, 44.6, Ci Ir-192 source along with a 10HVL collimator. The crew had made 15 exposures. The last exposure is when the Radiographer noticed a sudden stop from the drive cable during his retraction and that is what initiated the emergency procedures. At approximately 0308 YDT the source was locked and secured in the 880D device. It was determined that the guide tube was draped low in a 'W' shape at the guide tube extension point which was preventing the source from coming in under normal conditions. The cranks were straightened and a pole was used to raise the guide tube at the extension connection point and the source was retracted in normal conditions. No one was over-exposed and the boundaries were placed at such a distance that the crew and public were safe. It was a four man crew, two of whom received 0mR and the Radiographer and Assistant received 11mR and 8mR, respectively. The emergency response team members received 1mR (two of them) and 3mR (two of them). |
| Where | |
|---|---|
| Kakivik Asset Management Anchorage, Alaska (NRC Region 4) | |
| License number: | 50-27667-01 |
| Organization: | Kakivik Asset Management |
| Reporting | |
| 10 CFR 30.50(b)(2), Licensed Material Protection Equipment Failure | |
| Time - Person (Reporting Time:+13.58 h0.566 days <br />0.0808 weeks <br />0.0186 months <br />) | |
| Opened: | David Torres 21:53 May 5, 2019 |
| NRC Officer: | Jeffrey Whited |
| Last Updated: | May 5, 2019 |
| 54050 - NRC Website | |
Kakivik Asset Management with 10 CFR 30.50(b)(2) | |
WEEKMONTHYEARENS 540502019-05-05T08:18:0005 May 2019 08:18:00
[Table view]10 CFR 30.50(b)(2) Stuck Radiography Camera Source ENS 526912017-04-18T10:30:00018 April 2017 10:30:00 10 CFR 30.50(b)(2) Failure of the Radiography Camera Locking Mechanism ENS 525962017-03-07T05:00:0007 March 2017 05:00:00 10 CFR 30.50(b)(2) Radiography Camera Source Did Not Lock in the Shielded Position When Retracted ENS 515822015-12-01T10:00:0001 December 2015 10:00:00 10 CFR 30.50(b)(2) Radiography Camera Fails to Lock Source Automatically When Retracted ENS 481192012-07-02T07:45:0002 July 2012 07:45:00 10 CFR 30.50(b)(2) Unable to Retract Source Into Radiography Camera ENS 474282011-11-10T20:10:00010 November 2011 20:10:00 10 CFR 30.50(b)(2) Radiography Camera Source Fails to Completely Retract ENS 474182011-11-06T07:00:0006 November 2011 07:00:00 10 CFR 30.50(b)(2) Radiography Camera Source Lock Malfunction ENS 465332011-01-11T08:59:00011 January 2011 08:59:00 10 CFR 30.50(b)(2) Locking Mechanism Malfunction on Radiography Camera ENS 463232010-10-10T00:00:00010 October 2010 00:00:00 10 CFR 30.50(b)(2) Locking Mechanism Malfunction on Radiography Camera ENS 462332010-09-04T08:00:0004 September 2010 08:00:00 10 CFR 30.50(b)(2) Locking Mechanism Malfunction on Radiography Camera ENS 460522010-06-29T09:00:00029 June 2010 09:00:00 10 CFR 30.50(b)(2) Lock Malfunction on a Radiography Camera ENS 460512010-06-29T08:00:00029 June 2010 08:00:00 10 CFR 30.50(b)(2) Source Locking Malfunction of Radiography Camera ENS 456482010-01-22T09:00:00022 January 2010 09:00:00 10 CFR 30.50(b)(2) Failure to Fully Retract the Source of a Radiography Camera ENS 456092010-01-06T10:50:0006 January 2010 10:50:00 10 CFR 30.50(b)(2) Failure to Fully Retract the Source of a Radiography Camera ENS 455442009-12-07T13:30:0007 December 2009 13:30:00 10 CFR 30.50(b)(2) Failure to Fully Retract the Source of a Radiography Camera ENS 455242009-11-27T17:00:00027 November 2009 17:00:00 10 CFR 30.50(b)(2) Failure to Fully Retract the Source of a Radiography Camera ENS 454962009-11-13T00:30:00013 November 2009 00:30:00 10 CFR 30.50(b)(2) Failure to Fully Retract the Source of a Radiography Camera ENS 454692009-10-27T08:45:00027 October 2009 08:45:00 10 CFR 30.50(b)(2) Radiography Source Unable to Fully Retract ENS 453842009-09-27T10:00:00027 September 2009 10:00:00 10 CFR 30.50(b)(2) Radiography Camera Source Fails to Fully Retract Into Camera ENS 437692007-11-03T23:00:0003 November 2007 23:00:00 10 CFR 30.50(b)(2) Radiography Camera Source Fails to Fully Retract Into Camera ENS 431172007-01-13T21:30:00013 January 2007 21:30:00 10 CFR 30.50(b)(2) Failure of Radiography Camera Source to Fully Retract ENS 430672006-12-28T11:30:00028 December 2006 11:30:00 10 CFR 30.50(b)(2) Failure of Radiography Camera Source to Fully Retract ENS 426822006-03-08T08:00:0008 March 2006 08:00:00 10 CFR 30.50(b)(2) Radiography Source Pigtail Disconnected from Drive Cable 2019-05-05T08:18:00 | |
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