ENS 51387
ENS Event | |
|---|---|
05:00 Sep 11, 2015 | |
| Title | Agreement State Report - Source Disconnected from Radiography Camera |
| Event Description | The following report was received from the State of Texas via E-mail:
The licensee reported [to Texas Department of State Health Services] that a disconnect had occurred and that an investigation is in progress. The radiography crew was working at a temporary job site [in Gainesville, TX] and the person reporting the event did not have complete information. Source activity and details of the disconnect are not available at this time. The State of Texas does not believe that any over exposures have occurred. Texas Incident #: I-9337
The following information was received via E-mail: On September 11, 2015, the Agency [Texas Department of State Health Services] received a call from a licensee's radiation safety officer explaining that one of its crew had a source which was not retracting. The camera was a QSA Delta 880, serial number D4855, with a 92 Ci Ir-192 source, serial number 20487G. The camera and crank mechanism failed to operate as normal. It was described that the crank would connect to the camera without connecting to the pigtail. It also was described that the go/no go procedures were completed and had produced good results. The RSO was puzzled as to the connector working without the pigtail connection. He sent both the camera and the crank mechanism to the manufacture for a service check. The manufacture repaired the device. The manufacture performed a misconnect test stating that the rear plate assembly ring rotated from the Connect to Operate position without attaching the drive cable connector to the source assembly. This indicated a failure of the misconnect test. The manufacture disassembled the drive cables. A measurement of the connecting plug assembly revealed excessive component failure. This condition caused the misconnect. The device also showed signs of wear through to the DU shield. Both the control cable and the exposure device have been removed from service and will be disposed of accordingly. The source will be reloaded into a conforming Delta 880 device. The RSO provided corrective actions to prevent a recurrence of the misconnect. A company wide inspection of all drive cable control units was to be carried out immediately. All controls are routinely checked during quarterly maintenance field audits. Instructions for the misconnect test are provided in all source notebooks as part of the daily inspection. Nothing further for this investigation. No violations were cited. File closed. Notified R4DO (Gepford). Notified via E-mail the NMSS Events Notification group. |
| Where | |
|---|---|
| Hi Tech Testing Longview, Texas (NRC Region 4) | |
| License number: | L05021 |
| Organization: | Texas Dept Of State Health Services |
| Reporting | |
| Agreement State | |
| Time - Person (Reporting Time:+10.68 h0.445 days <br />0.0636 weeks <br />0.0146 months <br />) | |
| Opened: | Robert Free 15:41 Sep 11, 2015 |
| NRC Officer: | John Shoemaker |
| Last Updated: | Dec 2, 2015 |
| 51387 - NRC Website | |
Hi Tech Testing with Agreement State | |
WEEKMONTHYEARENS 513872015-09-11T05:00:00011 September 2015 05:00:00
[Table view]Agreement State Agreement State Report - Source Disconnected from Radiography Camera ENS 444762008-08-17T05:00:00017 August 2008 05:00:00 Agreement State Agreement State - Industrial Radiographer Overexposure 2015-09-11T05:00:00 | |