ENS 48667
ENS Event | |
|---|---|
20:58 Nov 14, 2012 | |
| Title | 60 Day Telephone Notification of an Invalid Reactor Trip Actuation in Mode 4 |
| Event Description | This 60-day telephone notification is being made in accordance with the reporting requirements of 10 CFR 50.73(a)(2)(iv)(A) for an invalid actuation of a reactor trip while subcritical.
On November 14, 2012 Salem Unit 2 was in Mode 4 performing unit startup activities during its 2012 Refueling outage. Rod Control system and Individual Rod Position Indication testing was in progress with the Reactor Trip breakers closed. Control Rod Banks were being withdrawn from the core in accordance with a testing procedure. At 1558 hours0.018 days <br />0.433 hours <br />0.00258 weeks <br />5.92819e-4 months <br /> [EST], an Instrument and Controls technician removed control power fuses from the Nuclear Instrumentation System Intermediate Range Drawer 2N36, generating an invalid reactor trip. Affected equipment responded as designed. Both reactor trip breakers opened and all control rods dropped into the core. 2N36 troubleshooting had been in progress. Repair or replacement options for a broken connector had been discussed between the technician and his supervisor. Concerned for his personal safety, the technician pulled the 2N36 control power fuses in order to perform a wiring inspection. The technician failed to apply human performance standards including written directions, pre-job briefing, and notifying control room personnel and supervision prior to work. The technician failed to recognize that he was working outside of the expectations of normal work processes and failed to properly evaluate the full consequences of his actions. There were no safety consequences or impact to the health and safety of the public as a result of this event. The licensee will notify the NRC Resident Inspector. |
| Where | |
|---|---|
Salem  New Jersey (NRC Region 1) | |
| Reporting | |
| 10 CFR 50.73(a)(1), Submit an LER, Invalid Actuation | |
| Time - Person (Reporting Time:+1387.78 h57.824 days <br />8.261 weeks <br />1.901 months <br />) | |
| Opened: | William Muffley 16:45 Jan 11, 2013 |
| NRC Officer: | John Shoemaker |
| Last Updated: | Jan 11, 2013 |
| 48667 - NRC Website
Loading map... {"minzoom":false,"maxzoom":false,"mappingservice":"leaflet","width":"350px","height":"250px","centre":false,"title":"","label":"","icon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"zoom":6,"defzoom":14,"layers":["OpenStreetMap"],"image layers":[],"overlays":[],"resizable":false,"fullscreen":false,"scrollwheelzoom":true,"cluster":false,"clustermaxzoom":20,"clusterzoomonclick":true,"clustermaxradius":80,"clusterspiderfy":true,"geojson":"","clicktarget":"","imageLayers":[],"locations":[{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca class=\"mw-selflink selflink\"\u003EENS 48667\u003C/a\u003E - \u003Ca href=\"/Salem\" title=\"Salem\"\u003ESalem\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E60 Day Telephone Notification of an Invalid Reactor Trip Actuation in Mode 4\n\u003C/p\u003E\u003C/div\u003E","title":"ENS 48667 - Salem\n","link":"","lat":39.46302222222222,"lon":-75.53561388888889,"icon":"/w/images/c/cc/PSEG_icon.png"}],"imageoverlays":null} | |
Unit 2 | |
|---|---|
| Reactor critical | Not Critical |
| Scram | A/R |
| Before | Hot Shutdown (0 %) |
| After | Hot Shutdown (0 %) |
WEEKMONTHYEARENS 537862018-10-15T04:00:00015 October 2018 04:00:00
[Table view]10 CFR 50.73(a)(1), Submit an LER Invalid Auxiliary Feedwater Pump Actuation ENS 528052017-04-16T14:53:00016 April 2017 14:53:00 10 CFR 50.73(a)(1), Submit an LER Invalid Edg Actuation During Surveillance Testing ENS 520072016-04-18T01:04:00018 April 2016 01:04:00 10 CFR 50.73(a)(1), Submit an LER Invalid Actuation of Emergency Diesel Generator ENS 516242015-10-29T16:12:00029 October 2015 16:12:00 10 CFR 50.73(a)(1), Submit an LER Invalid Actuation of Unit 2 2C Safeguards Equipment Cabinet ENS 486672012-11-14T20:58:00014 November 2012 20:58:00 10 CFR 50.73(a)(1), Submit an LER 60 Day Telephone Notification of an Invalid Reactor Trip Actuation in Mode 4 ENS 438892007-10-13T15:13:00013 October 2007 15:13:00 10 CFR 50.73(a)(1), Submit an LER 60 Day Ler Report - 1C Edg Invalid Start ENS 434282007-04-17T02:23:00017 April 2007 02:23:00 10 CFR 50.73(a)(1), Submit an LER Invalid Esf Actuation During Refueling Outage ENS 408062004-04-12T19:43:00012 April 2004 19:43:00 10 CFR 50.73(a)(1), Submit an LER 60-Day Notification of Invalid Actuation of Safety Injection Signal 2018-10-15T04:00:00 | |