ENS 53087
ENS Event | |
|---|---|
06:00 Nov 22, 2017 | |
| Title | Agreement State Report - Radiography Camera Malfunction |
| Event Description | The following report was received via e-mail:
A crew with [Shawcor] experienced a malfunction on the evening of November 21, 2017, with the INC IR-100 exposure device they were using when performing radiographic operations at Ward Petroleum (10404 E. 146th, Thornton, CO). Exposure Device: INC IR-100 (s/n 6839) Source: INC (s/n T0799) 65 curies After completing a radiographic exposure, the crew attempted to crank the source back into the exposure device; however, they were still able to crank the source out even after the button on the exposure device popped up to indicate the source was fully retracted and locked in place. After an attempt to crank the source out and back into the exposure device, the button was still popping up prematurely. Realizing there was a problem with the locking mechanism, the crew ensured their 2 mR/hr boundary was properly established and immediately contacted the Site RSO/Branch Manager. The crew maintained visual surveillance of the area until [the RSO], along with [the Assistant Site RSO], arrived at the jobsite. When [the RSO and Assistant Site RSO] arrived at the jobsite, they also ensured the 2 mR/hr boundary was properly established and began to assess the situation. There was no visible damage to any associated equipment (guide tube, crank assembly, etc.). They attempted several times to crank the source out and back into the fully shielded position; each time the button popped up prematurely even though the source was not locked into the exposure device. While holding down the button on the exposure device, [the RSO] was able to crank the source back in and upon releasing the button, the source locked in place. Surveys were completed to ensure the source was fully shielded. At no time during the incident did any crew member's dosimeter go off-scale and there was no threat of overexposure at any time to our company's employees, nor un-monitored workers. All personnel involved were wearing and utilizing proper radiation detection equipment, including OSL [Optically Stimulated Luminescent] badges, pocket dosimeters, alarming rate meters, and they were properly utilizing survey meters. The INC exposure device will be sent back to the manufacturer for maintenance and repair, if necessary. |
| Where | |
|---|---|
| Desert Ndt, Llc Dba Shawcor Abilene, Texas (NRC Region 4) | |
| License number: | CO 902-01 |
| Organization: | Colorado Dept Of Health |
| Reporting | |
| Agreement State | |
| Time - Person (Reporting Time:+8.62 h0.359 days <br />0.0513 weeks <br />0.0118 months <br />) | |
| Opened: | Shiya Wang 14:37 Nov 22, 2017 |
| NRC Officer: | Mark Abramovitz |
| Last Updated: | Nov 22, 2017 |
| 53087 - NRC Website | |
Desert Ndt, Llc Dba Shawcor with Agreement State | |
WEEKMONTHYEARENS 538752019-02-12T22:45:00012 February 2019 22:45:00
[Table view]Agreement State Agreement State Report - Radiography Camera Malfunction ENS 530872017-11-22T06:00:00022 November 2017 06:00:00 Agreement State Agreement State Report - Radiography Camera Malfunction ENS 530752017-11-15T06:00:00015 November 2017 06:00:00 Agreement State Agreement State Report - Radiography Camera Source Failed to Retract ENS 513892015-09-10T23:45:00010 September 2015 23:45:00 Agreement State Agreement State Report - Industrial Radiography Camera Source Disconnect 2019-02-12T22:45:00 | |