ENS 42572
ENS Event | |
|---|---|
21:40 Mar 14, 2006 | |
| Title | Inadvertant Core Spray Pump Actuation |
| Event Description | The notification is being made pursuant to 10CFR50.73(a)(2) (iv) (A) and is reported per 10CFR50.73(a)(1)
An invalid actuation of the 1 C Core Spray Pump start during D13 LOCA/LOOP Testing. a) The specific train(s) and system(s) that were actuated. The 1C Core Spray Pump actuated automatically on an inadvertent Division 3 LOCA signal during LOCA/LOOP testing. No other ECCS train/system actuated. b) Whether each train actuation was complete or partial. The 1C Core Spray Pump actuated in the minimum flow protection mode. c) Whether or not the system started and functioned successfully. The 1 C Core Spray System started and functioned successfully but did not inject into the vessel. On March 14, 2006 at 5:40 PM during performance of the D13 LOCA/LOOP Test, ST-6-092-117-1, the 1 C Core Spray pump was inadvertently started. The pump started (but did not inject) when an I&C Technician attempted to demonstrate operation of the test switch. He inadvertently picked up the energized test switch which was next to 2 spare test switches and manipulated it which resulted in a Division 3 LOCA signal to the 1C Core Spray Pump. The 1C Core Spray Pump never injected and was running with min-flow protection and functioned as expected. The cause of the event was lack of attention to detail and self check. The licensee notified the NRC Resident Inspector. |
| Where | |
|---|---|
Limerick  Pennsylvania (NRC Region 1) | |
| Reporting | |
| 10 CFR 50.73(a)(1), Submit an LER, Invalid Actuation | |
| Time - Person (Reporting Time:+1405.92 h58.58 days <br />8.369 weeks <br />1.926 months <br />) | |
| Opened: | Roy Harding 10:35 May 12, 2006 |
| NRC Officer: | Mark Abramovitz |
| Last Updated: | May 12, 2006 |
| 42572 - NRC Website
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WEEKMONTHYEARENS 564642023-02-16T12:05:00016 February 2023 12:05:00
[Table view]Other Unspec Reqmnt, 10 CFR 50.73(a)(1), Submit an LER 60 Day Notification for an Invalid Actuation of the Emergency Service Water System ENS 562832022-11-02T23:29:0002 November 2022 23:29:00 10 CFR 50.73(a)(1), Submit an LER 60-DAY Telephonic Notification - Invalid Specific System Actuation ENS 553452021-05-13T11:00:00013 May 2021 11:00:00 10 CFR 50.73(a)(1), Submit an LER Invalid Actuation of Containment Isolation Signal ENS 540832019-04-18T06:49:00018 April 2019 06:49:00 10 CFR 50.73(a)(1), Submit an LER Invalid Actuation of a Unit 2 Containment Isolation Logic Due to a Blown Fuse ENS 540142019-02-22T15:30:00022 February 2019 15:30:00 10 CFR 50.73(a)(1), Submit an LER Invalid Actuation of a Unit 1 Containment Isolation Logic Due to a Blown Fuse ENS 519522016-03-28T05:50:00028 March 2016 05:50:00 10 CFR 50.73(a)(1), Submit an LER Invalid Actuation of Inboard Isolation Logic ENS 485752012-10-13T23:41:00013 October 2012 23:41:00 10 CFR 50.73(a)(1), Submit an LER 60-Day Optional Telephonic Notification of Invalid Multiple System Actuations ENS 468832011-04-02T16:18:0002 April 2011 16:18:00 10 CFR 50.73(a)(1), Submit an LER Loss of Rps/Ups Power Supply ENS 459622010-04-03T01:56:0003 April 2010 01:56:00 10 CFR 50.73(a)(1), Submit an LER Overvoltage Condition Causes Reactor Protective System Actuation ENS 455182009-10-19T16:05:00019 October 2009 16:05:00 10 CFR 50.73(a)(1), Submit an LER Automatic Closure of Primary Containment Isolation Valves Due to Invalid Signal ENS 442602008-04-09T08:16:0009 April 2008 08:16:00 10 CFR 50.73(a)(1), Submit an LER 60-Day Optional Notification for Invalid Specified System Actuation ENS 433662007-03-19T06:20:00019 March 2007 06:20:00 10 CFR 50.73(a)(1), Submit an LER Invalid Specified System Actuations During Testing ENS 428302006-07-09T22:49:0009 July 2006 22:49:00 10 CFR 50.73(a)(1), Submit an LER Invalid Actuation of the B Esw Pump ENS 425722006-03-14T21:40:00014 March 2006 21:40:00 10 CFR 50.73(a)(1), Submit an LER Inadvertant Core Spray Pump Actuation ENS 416672005-03-06T19:07:0006 March 2005 19:07:00 10 CFR 50.73(a)(1), Submit an LER Invalid Safety System Actuation During an Outage ENS 408952004-05-26T20:22:00026 May 2004 20:22:00 10 CFR 50.73(a)(1), Submit an LER 60 Day Invalid Automatic Actuation Report: Containment Isoaltion Valves in More than One System 2023-02-16T12:05:00 | |