ENS 52645
ENS Event | |
|---|---|
19:25 Jan 31, 2017 | |
| Title | 60-Day Report Due to Invalid Eccs Actuation Signal |
| Event Description | The following report is made pursuant to 10 CFR 50.73(a)(2)(iv)(A) due to an unintended initiation signal that occurred on January 31, 2017 with James A. FitzPatrick Nuclear Power Plant (JAF) in Mode 5 at zero (0) percent power.
On January 31, 2017 at 1425 [EST] the control room received multiple annunciations associated with the following Systems / Trains: Primary Containment Isolation System (PCIS) / Trains A and B Residual Heat Removal System (RHR) / Trains A and B Core Spray (CS) / Trains A and B Reactor Core Isolation Cooling (RCIC) All four (4) Emergency Diesel Generators (EDG) auto-started with their associated Emergency Service Water pumps operating. RHR and CS both received initiation signals but were defeated per procedure. The HPCI [High Pressure Coolant Injection] auxiliary oil pump was taken to Pull-to-Lock per procedure, and the RCIC steam isolation valve cycled until the breaker was opened to close the valve. An evaluation concluded that the [Emergency Core Cooling System - ECCS] initiation signals were caused by the opening of a portable job box that was stored near sensitive equipment. Upon opening the job box, the lid bumped a reference leg resulting in the initiation signals. All initiation signals were reset and systems restored to normal shutdown lineups. The licensee notified the NRC Resident Inspector.
To the original report, the licensee added, "This condition recurred at 1624 [EDT on 1/31/17]. The licensee notified the NRC Resident Inspector. Notified R1DO (Cook). |
| Where | |
|---|---|
Fitzpatrick  New York (NRC Region 1) | |
| Reporting | |
| 10 CFR 50.73(a)(1), Submit an LER, Invalid Actuation | |
| Time - Person (Reporting Time:+1340.37 h55.849 days <br />7.978 weeks <br />1.836 months <br />) | |
| Opened: | Dustin Scurlock 14:47 Mar 28, 2017 |
| NRC Officer: | Bethany Cecere |
| Last Updated: | Mar 30, 2017 |
| 52645 - NRC Website | |
WEEKMONTHYEARENS 526452017-01-31T19:25:00031 January 2017 19:25:00
[Table view]10 CFR 50.73(a)(1), Submit an LER 60-Day Report Due to Invalid Eccs Actuation Signal ENS 514802015-08-23T16:42:00023 August 2015 16:42:00 10 CFR 50.73(a)(1), Submit an LER 60-Day Optional Telephonic Notification of Invalid Primary Containment Isolation Signal ENS 491792013-05-10T05:41:00010 May 2013 05:41:00 10 CFR 50.73(a)(1), Submit an LER 60 Day Optional Telephonic Notification of Invalid Actuation of an Emergency Diesel Generator ENS 485812012-10-13T07:18:00013 October 2012 07:18:00 10 CFR 50.73(a)(1), Submit an LER 60 Day Report- Invalid Specified System Actuation ENS 485522012-10-02T14:37:0002 October 2012 14:37:00 10 CFR 50.73(a)(1), Submit an LER Invalid Actuation Signal of the Primary Containment Isolation Level Transmitter ENS 446742008-10-14T16:06:00014 October 2008 16:06:00 10 CFR 50.73(a)(1), Submit an LER Faulty Voltage Regulator Causes Half Scram ENS 446732008-09-25T07:41:00025 September 2008 07:41:00 10 CFR 50.73(a)(1), Submit an LER Loose Connection Causes Half Scram While Shutdown ENS 442962008-05-31T16:06:00031 May 2008 16:06:00 10 CFR 50.73(a)(1), Submit an LER 60-Day Report Involving an Invalid Group II Primary Containment Isolation ENS 433322007-04-12T10:20:00012 April 2007 10:20:00 10 CFR 50.73(a)(1), Submit an LER Primary Containment Isolation Due to Loss of Rps Power Supply ENS 429672006-09-08T23:28:0008 September 2006 23:28:00 10 CFR 50.73(a)(1), Submit an LER Half Scram Signal Due to Equipment Failure ENS 418782005-06-03T21:05:0003 June 2005 21:05:00 10 CFR 50.73(a)(1), Submit an LER Half Scram on Voltage Regulator Failure ENS 415552005-02-14T12:18:00014 February 2005 12:18:00 10 CFR 50.73(a)(1), Submit an LER Inadvertant Safety System Actuation During Maintenance ENS 412142004-10-08T01:55:0008 October 2004 01:55:00 10 CFR 50.73(a)(1), Submit an LER 60-Day Report Due to an Invalid Actuation of Eccs and Edgs During Surveillance Activities ENS 411842004-10-07T07:44:0007 October 2004 07:44:00 10 CFR 50.73(a)(1), Submit an LER Invalid System Actuation 2017-01-31T19:25:00 | |