ENS 41548
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ENS Event | |
---|---|
13:35 Mar 30, 2005 | |
Title | Technical Specification Shutdown Due to Containment Fan Coil Units Declared Inoperable |
Event Description | The following information was obtained from the licensee via facsimile (licensee text in quotes):
The site determined that previous repairs to 21, 22, and 23 Containment Fan Coil Unit (CFCU) Heat Exchangers were not in compliance with applicable ASME codes. The three CFCUs were declared inoperable per Generic Letter 90-05 for ASME Class II Piping. Shutdown of Unit 2 to Mode 3 commenced at 0735. Code repairs are being performed and the technical specification required shutdown (LCO 3.0.3/3.6.1.B) is expected to be stopped once one CFCU train is returned to operability and the other is isolated to meet technical specification LCO 3.6.1. 'Containment.' The licensee notified the NRC Resident Inspector. |
Where | |
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Prairie Island Minnesota (NRC Region 3) | |
Reporting | |
10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown | |
Time - Person (Reporting Time:+-4 h-0.167 days <br />-0.0238 weeks <br />-0.00548 months <br />) | |
Opened: | Brian Johnson 09:35 Mar 30, 2005 |
NRC Officer: | Bill Gott |
Last Updated: | Mar 30, 2005 |
41548 - NRC Website
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Unit 2 | |
---|---|
Reactor critical | Critical |
Scram | No |
Before | Power Operation (100 %) |
After | Power Operation (100 %) |
WEEKMONTHYEARENS 502152014-06-20T01:35:00020 June 2014 01:35:00
[Table view]10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Technical Specification Required Shutdown ENS 481862012-08-14T08:12:00014 August 2012 08:12:00 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident, 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 Based on Both Emergency Diesels Being Declared Inoperable ENS 438592007-12-21T10:13:00021 December 2007 10:13:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Technical Specification Required Shutdown Due to Both Edg'S Being Declared Inoperable ENS 423122006-02-05T19:36:0005 February 2006 19:36:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Required T.S. Shutdown Due to Emergency Diesel Generator Inoperability ENS 416062005-04-16T02:30:00016 April 2005 02:30:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Plant Shutdown Required by Technical Specifications - Inoperable Emergency Diesel Generator ENS 415482005-03-30T13:35:00030 March 2005 13:35:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Technical Specification Shutdown Due to Containment Fan Coil Units Declared Inoperable ENS 412042004-11-18T02:50:00018 November 2004 02:50:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Technical Specification Required Shut Down Due to Both Trains of Containment Cooling System Fan Coil Units Inoperable 2014-06-20T01:35:00 | |
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