ENS 57170
ENS Event | |
|---|---|
17:34 Jun 4, 2024 | |
| Title | Agreement State Report - Stuck Source |
| Event Description | The following information was provided by the California Department of Public Health (the Department) via email:
At 1034 PDT on June 6, 2024, the Department received an email from the Mistras Group, notifying the Department of an event at the MRC Martinez Refinery. At 1407 PDT on June 3, 2024, the radiation safety officer (RSO) received a call from a radiography crew at MRC Martinez Refinery regarding a 61 curie Ir-192 source (serial number 475 I) that would not retract back into the industrial nuclear IR-100 radiographic exposure device (serial number 4059). The RSO arrived on the site at 1444 PDT to find that the extension tube female end crimp had dislodged from the tubing and was laying on the deck of the structure that the crew was working on. At 1555 PDT, the RSO was able to manipulate the cable into a position where they were able to retract the source back into the locked and shielded position without incident or overexposure. Five crew members were present during the time the source was in an unshielded position: the RSO, one radiographer trainer, and three assistants. The highest exposure recorded to their instadose [dosimeter] was 40 mR for the radiographer trainer. The RSO will submit a written report within 30 days following an investigation. California 5010 report number: 060424 |
| Where | |
|---|---|
| Mistras Group, Inc. Martinez, California (NRC Region 4) | |
| License number: | 4886-48 |
| Organization: | California Radiation Control Prgm |
| Reporting | |
| Agreement State | |
| Time - Person (Reporting Time:+168.3 h7.013 days <br />1.002 weeks <br />0.231 months <br />) | |
| Opened: | Nawab Kahn 17:52 Jun 11, 2024 |
| NRC Officer: | Natalie Starfish |
| Last Updated: | Jun 11, 2024 |
| 57170 - NRC Website
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Martinez Refining Company with Agreement State | |
WEEKMONTHYEARENS 571702024-06-04T17:34:0004 June 2024 17:34:00
[Table view]Agreement State Agreement State Report - Stuck Source ENS 564882023-04-25T04:00:00025 April 2023 04:00:00 Agreement State Damaged Radiography Camera ENS 559712022-06-16T07:00:00016 June 2022 07:00:00 Agreement State Lost Shipment ENS 558722022-05-02T05:00:0002 May 2022 05:00:00 Agreement State Radiography Source Disconnect ENS 557172022-01-28T05:00:00028 January 2022 05:00:00 Agreement State Radiography Camera Equipment Failure ENS 556672021-12-17T03:00:00017 December 2021 03:00:00 Agreement State Radiography Device Safety Latch Failure ENS 530332017-10-19T16:05:00019 October 2017 16:05:00 Agreement State Agreement State Report - Whole Body Monitor Exceeded the Annual Occupational Exposure Limit ENS 527042017-04-20T17:30:00020 April 2017 17:30:00 Agreement State Agreement State Report - Unsecured Radiography Camera ENS 521992016-08-24T05:00:00024 August 2016 05:00:00 Agreement State Agreement State Report - Potential Radiographer Overexposure ENS 521102016-07-18T23:05:00018 July 2016 23:05:00 Agreement State Agreement State Report - Radiographer Unplanned Exposure ENS 516412015-12-19T06:00:00019 December 2015 06:00:00 Agreement State Agreement State Report - Human Error Prevents a Radiography Source from Retracting ENS 516082015-12-11T22:38:00011 December 2015 22:38:00 Agreement State Agreement State Report - Unattended Radiographic Exposure Device ENS 503422014-05-30T00:30:00030 May 2014 00:30:00 Agreement State Agreement State Report - Failure of Source to Retract ENS 498162014-02-09T18:35:0009 February 2014 18:35:00 Agreement State Agreement State Report - Radiography Camera Left Unattended ENS 498172014-02-09T14:00:0009 February 2014 14:00:00 Agreement State Agreement State Report - Radiography Camera Source Disconnect ENS 496362013-12-14T08:00:00014 December 2013 08:00:00 Agreement State Agreement State Report - Stuck Radiography Source ENS 490092013-05-06T05:00:0006 May 2013 05:00:00 Agreement State Agreement State Report - Stuck Radiography Source 2024-06-04T17:34:00 | |