ENS 51208
ENS Event | |
|---|---|
06:19 May 11, 2015 | |
| Title | Invalid Actuation of the Division 2 Emergency Diesel Generator |
| Event Description | The following information is provided as 60-day telephone notification to the NRC in accordance with 10 CFR 50.73(a)(1) reported under 10 CFR 50.73(a)(2)(iv)(A) for an invalid actuation of the Division 2 emergency diesel generator (DG). The event occurred on May 11, 2015, at 0119 CDT. As allowed by 10 CFR 50.73(a)(1), the notification is being made via telephone.
(a) The specific train(s) and system(s) that actuated were: During the restoration from surveillance test procedure CPS 9080.25, 'DG 1B Test Mode Override, Load Reject Operability and Idle Speed Override,' the Division 2 DG automatically started. The Division 2 DG started when the maintenance technicians improperly removed a temporary toggle switch installed for simulation of a Loss of Coolant Accident (LOCA) signal. (b) Whether each train actuation was complete or partial: Upon receiving the simulated LOCA signal, the Division 2 DG started as expected. No additional actuations occurred. (c) Whether or not the system started and functioned successfully: Upon receiving the simulated LOCA signal, the Division 2 DG started and was verified to have properly started in response to a start signal. The NRC resident has been notified. |
| Where | |
|---|---|
| Clinton Illinois (NRC Region 3) | |
| Reporting | |
| 10 CFR 50.73(a)(1), Submit an LER, Invalid Actuation | |
| Time - Person (Reporting Time:+1399.07 h58.295 days <br />8.328 weeks <br />1.916 months <br />) | |
| Opened: | Jim Peterson 13:23 Jul 8, 2015 |
| NRC Officer: | Jeff Herrera |
| Last Updated: | Jul 8, 2015 |
| 51208 - NRC Website
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WEEKMONTHYEARENS 528622017-05-18T16:15:00018 May 2017 16:15:00
[Table view]10 CFR 50.73(a)(1), Submit an LER Invalid Actuation of Emergency Diesel Generator ENS 512082015-05-11T06:19:00011 May 2015 06:19:00 10 CFR 50.73(a)(1), Submit an LER Invalid Actuation of the Division 2 Emergency Diesel Generator ENS 504522014-07-26T21:48:00026 July 2014 21:48:00 10 CFR 50.73(a)(1), Submit an LER Invalid Specified System Actuation ENS 475872011-12-04T12:09:0004 December 2011 12:09:00 10 CFR 50.73(a)(1), Submit an LER Invalid Actuation of Containment Isolation Signals and an Emergency Service Water Pump ENS 459012010-03-15T06:38:00015 March 2010 06:38:00 10 CFR 50.73(a)(1), Submit an LER Optional 60-Day Report of Invalid Specified System Actuation ENS 425952006-03-26T08:47:00026 March 2006 08:47:00 10 CFR 50.73(a)(1), Submit an LER 60 Day Notification - Invalid Actuation of High Pressure Core Spray Pump ENS 424772006-02-08T03:59:0008 February 2006 03:59:00 10 CFR 50.73(a)(1), Submit an LER Invalid System Actuations ENS 418212005-05-12T20:48:00012 May 2005 20:48:00 10 CFR 50.73(a)(1), Submit an LER Invalid Actuation of the Division 2 Shutdown Service Water (Sx) System Pump. 2017-05-18T16:15:00 | |