ENS 48092
ENS Event | |
|---|---|
13:28 May 14, 2012 | |
| Title | 60-Day Optional Telephonic Notification for an Invalid Emergency Service Water Actuation |
| Event Description | At 0928 EDT on May 14, 2012, the 'B' Emergency Service Water (ESW) pump started during testing from the Unit 1 remote shutdown panel (RSP). The likely cause of the start was either human error in performing continuity checks or inadvertent contact with the manual start circuit in the RSP. Based on the likely cause, this was an invalid actuation of a system listed in 10 CFR 50.73(a)(2)(iv).
As indicated in 10 CFR 50.73(a)(1), in the case of an invalid actuation reported under 10 CFR 50.73(a)(2)(iv) other than actuation of the reactor protection system (RPS) when the reactor is critical, the licensee may, at its option, provide a telephone notification to the NRC Operations Center within 60 days after discovery of the event instead of submitting a written LER. This 60-day telephone notification is being made to meet the reporting requirements instead of submitting an LER since the actuation was invalid and was not an RPS actuation with the reactor critical. The following additional information is being provided as specified in NUREG-1022: The specific train(s) and system(s) that were actuated: The 'B' ESW pump inadvertently started during testing from the Unit 1 remote shutdown panel. Whether each train actuation was complete or partial: This was a partial actuation (one of four ESW pumps). Whether or not the system started and functioned successfully: The 'B' ESW pump started successfully, operated properly, and continued running until manually secured via normal controls. At the time of the event, the licensee was performing a surveillance where control was shifted from the control room to the remote shutdown panel. The licensee notified the NRC Resident Inspector. |
| Where | |
|---|---|
Susquehanna  Pennsylvania (NRC Region 1) | |
| Reporting | |
| 10 CFR 50.73(a)(1), Submit an LER, Invalid Actuation | |
| Time - Person (Reporting Time:+1390.97 h57.957 days <br />8.28 weeks <br />1.905 months <br />) | |
| Opened: | Todd Creasy 12:26 Jul 11, 2012 |
| NRC Officer: | Howie Crouch |
| Last Updated: | Jul 11, 2012 |
| 48092 - 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 48092\u003C/a\u003E - \u003Ca href=\"/Susquehanna\" title=\"Susquehanna\"\u003ESusquehanna\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E60-Day Optional Telephonic Notification for an Invalid Emergency Service Water Actuation\n\u003C/p\u003E\u003C/div\u003E","title":"ENS 48092 - Susquehanna\n","link":"","lat":41.09256666666667,"lon":-76.14176944444445,"icon":"/w/images/c/c7/Talen_Energy_icon.png"}],"imageoverlays":null} | |
Unit 2 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
WEEKMONTHYEARENS 541032019-04-18T05:10:00018 April 2019 05:10:00
[Table view]10 CFR 50.73(a)(1), Submit an LER 60-Day Optional Telephonic Notification Due to Invalid Specified System Actuation ENS 527722017-04-03T01:27:0003 April 2017 01:27:00 10 CFR 50.73(a)(1), Submit an LER 60-Day Optional Telephonic Notification of Invalid Specified System Actuation ENS 480922012-05-14T13:28:00014 May 2012 13:28:00 10 CFR 50.73(a)(1), Submit an LER 60-Day Optional Telephonic Notification for an Invalid Emergency Service Water Actuation ENS 457262010-02-25T19:18:00025 February 2010 19:18:00 10 CFR 50.73(a)(1), Submit an LER Invalid Actuation of Containment Isolation Valves ENS 435552007-06-09T09:11:0009 June 2007 09:11:00 10 CFR 50.73(a)(1), Submit an LER Invalid Actuation of the 'C' Emergency Diesel Generator ENS 424892006-03-11T09:32:00011 March 2006 09:32:00 10 CFR 50.73(a)(1), Submit an LER Invalid Actuation of Containment Isolation Valves ENS 407662004-04-04T18:57:0004 April 2004 18:57:00 10 CFR 50.73(a)(1), Submit an LER 60 -Day Report: Invalid Actuation of the "E" Emergency Diesel Generator ENS 407332004-03-21T16:32:00021 March 2004 16:32:00 10 CFR 50.73(a)(1), Submit an LER Invalid Actuation of Containment Isolation Signals in More than One System ENS 401732003-08-29T14:25:00029 August 2003 14:25:00 10 CFR 50.73(a)(1), Submit an LER Invalid Actuation of Containment Isolation Valves 2019-04-18T05:10:00 | |