ENS Event | |
|---|---|
06:00 Mar 2, 2022 | |
| Title | |
| Event Description | The following information was provided by the Iowa Department of Public Health via email:
A stuck shutter was discovered Wednesday, March 2nd on the B-gauge, shutter 1. Entry to the gauge house has been prohibited per protocol. Measurements indicate an increase dose rate relative to background at the south side adjacent to the gauge and shutter 1 position, with a maximum reading of 0.11 mR/hr. The licensee's service provider, SenTek, has been requested to perform emergency repair work. The B-Gauge was repaired last night around 1900 CST. The shutter failed to close due to the solenoid valve that opens and closes the shutter, which would not vent pressure. The failed solenoid valve was replaced by a new valve. The project to replace these gauges with x-ray technology is ongoing and on track to be replaced by first quarter, 2023. Source/Radioactive Material: SEALED SOURCE GAUGE Manufacturer: Isotope Measuring Systems, Inc. Model Number: NOT KNOWN IAEA Category: 3 Serial Number: 2332-2336L Radionuclide: AM-241 Activity: 5 Ci (185 GBq) Iowa Event Number: IA220001 |
| Where | |
|---|---|
| Arconic Davenport, Llc Bettendoff, Iowa (NRC Region 3) | |
| License number: | 0162182FG |
| Organization: | Iowa Department Of Public Health |
| Reporting | |
| Agreement State | |
| Time - Person (Reporting Time:+27.95 h1.165 days <br />0.166 weeks <br />0.0383 months <br />) | |
| Opened: | Dahlin Randal 09:57 Mar 3, 2022 |
| NRC Officer: | Karen Cotton-Gross |
| Last Updated: | Mar 3, 2022 |
| 55763 - NRC Website | |
Arconic Davenport, Llc with Agreement State | |
WEEKMONTHYEARENS 570872024-04-22T05:00:00022 April 2024 05:00:00
[Table view]Agreement State Shutter Stuck Partially Open ENS 568742023-11-28T06:00:00028 November 2023 06:00:00 Agreement State Partially Stuck Open Shutter ENS 561792022-10-24T05:00:00024 October 2022 05:00:00 Agreement State Stuck Shutter ENS 560512022-08-17T00:42:00017 August 2022 00:42:00 Agreement State Stuck Shutter ENS 557632022-03-02T06:00:0002 March 2022 06:00:00 Agreement State Stuck Shutter Gauge ENS 554172021-08-18T05:00:00018 August 2021 05:00:00 Agreement State Stuck Open Gauge Shutter 2024-04-22T05:00:00 | |