ENS 50560: Difference between revisions
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| event date = 10/23/2014 01:07 CDT | | event date = 10/23/2014 01:07 CDT | ||
| last update date = 12/17/2014 | | last update date = 12/17/2014 | ||
| title = Secondary Containment Inoperable Due | | title = Secondary Containment Inoperable Due to Both Airlock Doors Open Simultaneously | ||
| event text = At 0107 CDT on October 23rd, 2014, both doors in one of the Secondary Containment airlocks were momentarily open concurrently. This occurred during vessel drain down following refueling activities, an Operation with the Potential to Drain the Reactor Vessel (OPDRV), which required Secondary Containment to be operable. The doors being open at the same time resulted in the momentary inoperability of Secondary Containment. One of the doors was immediately closed, and Secondary Containment was restored to an operable status. | | event text = At 0107 CDT on October 23rd, 2014, both doors in one of the Secondary Containment airlocks were momentarily open concurrently. This occurred during vessel drain down following refueling activities, an Operation with the Potential to Drain the Reactor Vessel (OPDRV), which required Secondary Containment to be operable. The doors being open at the same time resulted in the momentary inoperability of Secondary Containment. One of the doors was immediately closed, and Secondary Containment was restored to an operable status. | ||
The station [Duane Arnold] has now completed the OPDRV associated with vessel drain down, and Secondary Containment is no longer required to be operable. | The station [Duane Arnold] has now completed the OPDRV associated with vessel drain down, and Secondary Containment is no longer required to be operable. | ||
Latest revision as of 21:48, 1 March 2018
| Where | |
|---|---|
Duane Arnold  Iowa (NRC Region 3) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material | |
| Time - Person (Reporting Time:+3.68 h0.153 days <br />0.0219 weeks <br />0.00504 months <br />) | |
| Opened: | Stephen Speirs 09:48 Oct 23, 2014 |
| NRC Officer: | Daniel Mills |
| Last Updated: | Dec 17, 2014 |
| 50560 - NRC Website
| |
Duane Arnold with 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material | |