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| Start date | Reporting criterion | Title | Event description | System | LER | |
|---|---|---|---|---|---|---|
| ENS 56244 | 23 November 2022 06:00:00 | Agreement State | Agreement State - Stuck Shutter | The following report was received via email from the Texas Department of State Health Services (the Agency): On November 28, 2022, the licensee notified the Agency that it had discovered that the shutter on one of its Ohmart-Vega SH-F1A gauges had been stuck in the closed position since November 23, 2022. The gauge had been closed and locked out on November 22nd for work on the vessel. On November 23rd the gauge was placed back into service. Over the holiday weekend the unit operations had continued to get high readings which would indicate a buildup in the system or a closed shutter. On November 28th the gauge was checked. The licensee's radiation safety officer found the two bolts on the shutter handle were sheared and the shutter was in the fully closed position. No exposures have resulted from this event. An investigation is ongoing. Source: Cesium-137, 5 millicuries, SN: OV-0050 (this SN serves also as the gauge source holder SN). More information will be provided as it is obtained in accordance with SA-300. Texas Incident Number: I-9966 | ||
| ENS 52986 | 14 September 2017 07:00:00 | Agreement State | Agreement State Report - Stuck Closed Shutter | The following information was received via E-mail: On September 18, 2017, the Agency (Texas Department of State Health Services) received a reciprocity request from a nuclear gauge manufacturer to perform repairs on a Ronan Engineering model SA1-F37 gauge at the licensee's facility. The gauge contains a 500 millicurie (original activity) source. On September 22, 2017, the Agency contacted the licensee and asked if the gauge shutter was functioning properly. The individual stated the shutter on the gauge would not fully close. The individual was instructed to contact the licensee's radiation safety officer (RSO) and instruct the RSO to contact this Agency. The RSO contacted the Agency and stated the problem was discovered when testing the gauge on September 14, 2017. The RSO stated the gauge shutter was not open, but stuck in the closed position. The RSO stated it appears the pin that connects the shutter operating arm to the operating rod is no longer in place and the shutter cannot be moved. The RSO stated the gauge is located in an area where the access is controlled and does not pose an exposure risk to their workers or members of the general public. The manufacturer is scheduled to be on the site September 26, 2017, to repair the gauge. Additional information will be provided as it is received in accordance with SA-300. Texas Incident #: I-9511 |