ENS 55809
ENS Event | |
|---|---|
05:00 Mar 29, 2022 | |
| Title | |
| Event Description | The following information was obtained from the state of Iowa via e-mail:
When conducting routine shutter checks on an Ohmart/Vega SHLG-2 fixed gauge, the operator was not able to extend the plunger to move the source into a shielded position (use of hands and basic tools). The device is in a facility that is restricted access and unmanned due to chemical production. Unless manually operated for shutter checks or vessel maintenance, the standard position of this device is open. No increase of radiation levels compared to standard operating conditions. Radiation Safety Officer (RSO) has contacted Vega for corrective action guidance and direct support. Initial guidance is the application of a coil lubricant and rotating the handle. Any action above this will be performed by a Vega service technician. The Licensee has a scheduled shutdown of the production line next week when they will schedule the Vega tech for support. Source/Radioactive Material: SEALED SOURCE GAUGE Manufacturer: OHMART CORP. Model Number: A-2102 IAEA Category: 3 Serial Number: 9849CN Radionuclide: Cs-137 Activity: 4 Ci (148 GBq) Iowa Event Number: IA220002
The following information was received from the state of Iowa via email: Update to Iowa Event No. IA220002 involving a stuck fixed nuclear gauge shutter operating on a low pressure separator on top of a vessel within the low-density production unit. On March 30, 2022, the RSO, under the direction of the manufacturer, removed a small amount of debris, applied Kroil lubricant to the shutter plunger, and was able to successfully close the Vega SHLG-2 gauge shutter. After an additional application of the Kroil lubricant, the gauge shutter operation was back to normal without resistance and no additional actions were necessary. The manufacturer instructed the RSO to apply the Kroil lubricant annually as a preventative measure which the licensee is planning on doing and there are no generic concerns. The 30-day written report was provided to the Iowa Department of Public Health (IDPH) on April 26, 2022. There was no exposure to any individuals to radiation from this event and IDPH considers this to be closed. Notified R3DO (Ziolkowski) |
| Where | |
|---|---|
| Equistar Chemicals, Lp Clinton, Iowa (NRC Region 3) | |
| License number: | 0101123FG |
| Organization: | Iowa Department Of Public Health |
| Reporting | |
| Agreement State | |
| Time - Person (Reporting Time:+34.37 h1.432 days <br />0.205 weeks <br />0.0471 months <br />) | |
| Opened: | Derek Elling 15:22 Mar 30, 2022 |
| NRC Officer: | Lloyd Desotell |
| Last Updated: | Apr 27, 2022 |
| 55809 - NRC Website | |
Equistar Chemicals, Lp with Agreement State | |
WEEKMONTHYEARENS 574632024-12-09T06:00:0009 December 2024 06:00:00
[Table view]Agreement State Stuck Open Shutter ENS 558092022-03-29T05:00:00029 March 2022 05:00:00 Agreement State Stuck Open Shutter ENS 557542022-02-24T00:00:00024 February 2022 00:00:00 Agreement State Broken Source Cable ENS 522582016-09-21T05:00:00021 September 2016 05:00:00 Agreement State Agreement State Report - Stuck Shutter ENS 472432011-09-02T05:00:0002 September 2011 05:00:00 Agreement State Agreement State - Fixed Process Gauge Failed Shutter Check ENS 456852010-02-08T06:00:0008 February 2010 06:00:00 Agreement State Agreement State Report - Fixed Gauge Stuck Shutter 2024-12-09T06:00:00 | |