ENS 42463
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ENS Event | |
|---|---|
03:20 Apr 1, 2006 | |
| Title | Technical Specification Required Shutdown Due to Inoperable Afw Turbine |
| Event Description | During post maintenance testing of the Auxiliary Feedwater Terry Turbine driven pump, pump problems were discovered related to the turbine governor and pump bearings. The turbine driven pump is inoperable and can not be made operable within the Technical Specification LCO Action time limit of 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />. The unit will be commencing a reactor shutdown to Mode 4 and perform maintenance to correct the problems.
The licensee notified the NRC Resident Inspector, the Connecticut Department of Environmental Protection, and the Local Waterford Dispatch. |
| Where | |
|---|---|
| Millstone Connecticut (NRC Region 1) | |
| Reporting | |
| 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown | |
| Time - Person (Reporting Time:+-4.73 h-0.197 days <br />-0.0282 weeks <br />-0.00648 months <br />) | |
| Opened: | Barrett Nichols 22:36 Mar 31, 2006 |
| NRC Officer: | Jeff Rotton |
| Last Updated: | Mar 31, 2006 |
| 42463 - NRC Website
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Unit 2 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Hot Shutdown (0 %) |
WEEKMONTHYEARENS 544492019-12-18T00:29:00018 December 2019 00:29:00
[Table view]10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Technical Specification Required Shutdown ENS 503132014-07-26T18:11:00026 July 2014 18:11:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Technical Specification Required Shutdown Due to Turbine Driven Afw Pump Failure ENS 498602014-02-27T13:09:00027 February 2014 13:09:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Plant Shutdown Required by Technical Specification ENS 497792014-01-31T08:30:00031 January 2014 08:30:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Technical Specification Required Shutdown Due to Degradation of the Pressurizer Proportional Heaters Group 1 ENS 520002013-06-13T00:13:00013 June 2013 00:13:00 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation, 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Technical Specification Required Shutdown and Reactor Trip ENS 481812012-08-12T04:44:00012 August 2012 04:44:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Technical Specification Required Shutdown Due to Ultimate Heat Sink Exceeding Temperature Limit ENS 472392011-09-03T19:30:0003 September 2011 19:30:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Technical Specification Required Shutdown Due to "a" Train Service Water Leak ENS 424632006-04-01T03:20:0001 April 2006 03:20:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Technical Specification Required Shutdown Due to Inoperable Afw Turbine 2019-12-18T00:29:00 | |
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