ENS 54989
ENS Event | |
|---|---|
20:30 Nov 2, 2020 | |
| Title | Possible Misconnect of Radiography Source |
| Event Description | The following information was received from the State of Kansas via email:
On November 3, 2020, at 1100 CST, the Kansas Department of Health and Environment (KDHE) was notified that the Desert NDT LLC radiography crew experienced a possible misconnect at 1430 CST on November 2, 2020, at a job site in Liberal, KS. The two crew members performed an exposure using the Delta 880 exposure camera containing an Iridium-192 source with 51.9 curies (1902 GBq). After the exposure the crew noticed that they did not hear the source click back in place in the camera. Through surveys, the crew noted abnormally high readings at the front of the exposure device. The crew ensured 2 mR boundaries were appropriately set and that all personnel was clear of the area. The crew then called their radiation safety officer (RSO) explaining the problem. The site RSO from the Perryton, Texas [location] was notified to assist with the possible misconnect. The RSO arrived onsite at 1545 CST on the same date and was able to assess possible reasons for the disconnect and devised a plan to retrieve the source. After reducing the radiation area to a manageable level, he was able to disconnect the Source Guide Tube from the device to be able to remove it from the radiation area and inspect the device for further inspection and investigation as to why the disconnect had occurred. After disconnecting the controls from the device it was determined that the Assistant Radiographer had not connected the drive cable to the pig-tail of the source assembly creating a 'Misconnect.' Once the reason for the misconnect was discovered, the RSO replaced the controls on the device and moved forward with the retrieval and was able to connect the drive cable to the source and retract it into the shielded position. The RSO stated that he completed the retrieval at 1610 CST on November 2, 2020. There was no exposure to the general public or any other individuals other than the three crew members. The closest area for any member of the public to be exposed was at a roadway approximately 300 feet away. The RSO, who was authorized to perform source retrieval, received an exposure of 45 mR to his hands and 20 mR to his trunk. Surveys were taken using a ND-2000 survey meter, serial number 54261, and calibration date of July 28, 2020. The RSO wore a model 883 pocket dosimeter and alarm rate meter (ARM) model RA-500, serial number 71037, and calibration date of February 11, 2020. Landauer whole body badges were also worn during the retrieval process. KDHE staff will be performing a reactive inspection of this licensee on the next entry into Kansas and will provide additional details after that inspection. Kansas Incident Number: KS00006. |
| Where | |
|---|---|
| Desert Ndt Llc Fort Worth, Texas (NRC Region 4) | |
| License number: | 21-B1006 |
| Organization: | Kansas Dept Of Health & Environment |
| Reporting | |
| Agreement State | |
| Time - Person (Reporting Time:+187.35 h7.806 days <br />1.115 weeks <br />0.257 months <br />) | |
| Opened: | Aaron Short 15:51 Nov 10, 2020 |
| NRC Officer: | Solomon Sahle |
| Last Updated: | Nov 10, 2020 |
| 54989 - NRC Website | |
Desert Ndt Llc with Agreement State | |
WEEKMONTHYEARENS 549892020-11-02T20:30:0002 November 2020 20:30:00
[Table view]Agreement State Possible Misconnect of Radiography Source ENS 543772019-11-06T06:00:0006 November 2019 06:00:00 Agreement State Texas Agreement State Report - Unable to Retract Radiography Source ENS 540932019-05-29T05:00:00029 May 2019 05:00:00 Agreement State Agreement State Report - Source Drive Cable Disconnected ENS 536792018-10-20T05:00:00020 October 2018 05:00:00 Agreement State Agreement State Report - Radiography Source Failure to Retract ENS 536412018-10-02T05:00:0002 October 2018 05:00:00 Agreement State Agreement State Report - Damaged Radiography Source ENS 535492018-08-11T05:00:00011 August 2018 05:00:00 Agreement State Agreement State Report - Unable to Retract Source ENS 534872018-07-03T05:00:0003 July 2018 05:00:00 Agreement State Agreement State Report - Source Disconnect ENS 534392018-05-31T05:00:00031 May 2018 05:00:00 Agreement State En Revision Imported Date 7/12/2018 ENS 528242017-06-23T05:00:00023 June 2017 05:00:00 Agreement State Agreement State Report - Possible Dose Exceeding Limits Received ENS 526712017-04-08T05:00:0008 April 2017 05:00:00 Agreement State Agreement State Report - Radiography Camera Source Fails to Retract Properly ENS 520372016-06-22T05:00:00022 June 2016 05:00:00 Agreement State Agreement State Report - Radiography Camera Component Failure ENS 510002015-04-22T02:45:00022 April 2015 02:45:00 Agreement State Agreement State Report - Radiography Truck Accident Resulting in a Fatality ENS 506372014-11-24T06:00:00024 November 2014 06:00:00 Agreement State Agreement State Report - Radiography Camera Stuck Source ENS 506342014-11-21T06:00:00021 November 2014 06:00:00 Agreement State Agreement State Report - Radiography Camera Failed to Operate Properly ENS 505522014-10-20T05:00:00020 October 2014 05:00:00 Agreement State Agreement State Report - Radiography Camera Source Retraction Failure ENS 505032014-08-01T05:00:0001 August 2014 05:00:00 Agreement State Agreement State Report - Locking Mechanism Failure ENS 499992014-04-04T05:00:0004 April 2014 05:00:00 Agreement State Agreement State Report - Camera Source Disconnect ENS 486932013-01-22T06:00:00022 January 2013 06:00:00 Agreement State Agreement State Report - Radiography Camera Source Disconnect 2020-11-02T20:30:00 | |