ENS 51021
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ENS Event | |
|---|---|
14:35 Apr 28, 2015 | |
| Title | Two Secondary Containment Interlock Doors Open Simultaneously |
| Event Description | On April 28, 2015, at 0935 CDT, the Shift Manager was notified that two Secondary Containment interlock doors (1/2 EDG room door and the Unit 1 reactor building door) were open simultaneously. The doors were immediately closed and secondary containment pressure remained negative.
This condition represents a failure to meet Surveillance Requirement 3.6.4.1.2 given two doors in a single access opening were open simultaneously. As a result entry into Technical Specification 3.6.4.1, Condition A, was made momentarily due to secondary containment being inoperable. This event is reportable under 10 CFR 50.72(b)(3)(v)(C) as an event or condition that could have prevented the fulfillment of a safety function. The NRC Resident Inspector has been notified. Personnel were posted in the area as a compensatory measure. The State of Illinois Emergency Management has been notified. |
| Where | |
|---|---|
Quad Cities  Illinois (NRC Region 3) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material | |
| LER: | 05000254/LER-2015-006 |
| Time - Person (Reporting Time:+0.25 h0.0104 days <br />0.00149 weeks <br />3.4245e-4 months <br />) | |
| Opened: | Andrew Mitchell 14:50 Apr 28, 2015 |
| NRC Officer: | Dong Park |
| Last Updated: | Apr 28, 2015 |
| 51021 - NRC Website
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Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
Unit 2 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
Quad Cities with 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material | |
WEEKMONTHYEARENS 559762022-07-04T06:30:0004 July 2022 06:30:00
[Table view]10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident, 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material Both Trains of Standby Gas Treatment Inoperable ENS 531892018-01-31T19:10:00031 January 2018 19:10:00 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material Momentary Loss of Secondary Containment ENS 525082017-01-24T16:00:00024 January 2017 16:00:00 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material Secondary Containment Interlock Doors Open Simultaneously ENS 516592016-01-16T02:38:00016 January 2016 02:38:00 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material Momentary Loss of Secondary Containment ENS 516502016-01-12T19:40:00012 January 2016 19:40:00 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material Momentary Loss of Secondary Containment ENS 511652015-06-19T06:53:00019 June 2015 06:53:00 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material Secondary Containment Interlock Doors Open Simultaneously ENS 510212015-04-28T14:35:00028 April 2015 14:35:00 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material Two Secondary Containment Interlock Doors Open Simultaneously ENS 508032015-02-10T16:55:00010 February 2015 16:55:00 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material Secondary Containment Interlock Doors Open Simultaneously ENS 506222014-11-18T15:00:00018 November 2014 15:00:00 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material Secondary Containment Interlock Doors Open Simultaneously ENS 501322014-05-23T02:50:00023 May 2014 02:50:00 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material Both Hpci Secondary Containment Airlock Doors Open Simultaneously ENS 499842014-04-01T18:57:0001 April 2014 18:57:00 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material Unit 2 Secondary Containment Interlocked Doors Opened Simultaneously ENS 498702014-03-05T01:17:0005 March 2014 01:17:00 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material Momentary Loss of Secondary Containment ENS 497272014-01-15T13:23:00015 January 2014 13:23:00 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material Drywell Radiation Monitor Inoperable ENS 485272012-11-20T19:21:00020 November 2012 19:21:00 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material Drywell Radiation Monitor Inoperable ENS 483322012-09-21T19:49:00021 September 2012 19:49:00 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material Drywell Radiation Monitor Inoperable ENS 482822012-09-06T18:14:0006 September 2012 18:14:00 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material Loss of Secondary Containment Ventilation for Eight Seconds 2022-07-04T06:30:00 | |
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