ENS 41815
ENS Event | |
|---|---|
23:29 Jun 30, 2005 | |
| Title | Primary Containment Inoperable Due to Small Crack in Torus |
| Event Description | The licensee has determined that the small weep hole crack in the torus (x in shape) is in a position which requires the plant to initiate a normal shutdown to cold shutdown conditions. The crack is located about 5 feet below the waterline and just below the HPCI exhaust pipe discharge. Due to the location of this crack the licensee's engineering staff showed via analysis that it would be prudent to restrict the number of thermal cycles the crack receives. The plant is in a 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> Technical Specification LCO shutdown action statement. At 19:50 the licensee commenced the Technical Specification shutdown to cold shutdown conditions.
As an additional item, one of the four Emergency Diesel Generators was deemed inoperable at the time of the event, and continues to be in a LCO action statement. The licensee made notifications to the State and local agencies, and will notify the NRC Resident Inspector.
With the plant operating at 100% on June 27, 2005 during RCIC Torus Suction piping inspection per ST-24H, inspectors discovered a TORUS leak in the vicinity of a TORUS Support between Bays A and P. The leak was quantified as slight weepage with streaking and a small puddle below leak. This was captured in the plant corrective action program on CR-JAF-2005-02593. Subsequent non destructive examination determined that the leakage was from a small through wall crack. The condition was discussed with the NRC Staff at that time. Initial evaluation at that time determined that there was reasonable expectation of operability, an Operational Decision Making Instruction (ODMI) was prepared and implemented to monitor the leakage while further engineering evaluation was conducted. On June 30,2005 further engineering analysis determined that operability of the primary containment was not assured and at 19:29 on June 30, 2005 the Shift Manager declared Primary Containment Inoperable and entered Technical Specification LCO 3.6.1.1 Condition A, Primary Containment Inoperable, and declared an Unusual Event under EAL 9.1.2. Preparations were made for a reactor shutdown and the shutdown was commenced at 20:00. At the time of the event the A Train of EDGs was out of service for a planned maintenance LCO. At this time the NRC Resident has been informed. The A Train EDG is not available nor operable if needed. The R1DO (White) and NRR EO (Carpenter) have been notified.
An Unusual Event was terminated at 1716 EDT due to achieving cold shutdown. R1DO (John White), NRR EO (Cynthia Carpenter), IRD Manager (M. Leach), FEMA (Todd Kuzia) and DHS (Craig) notified. NRC Resident Inspector, State and Local officials were notified by the licensee. |
| Where | |
|---|---|
Fitzpatrick  New York (NRC Region 1) | |
| Reporting | |
| Emergency class: | Unusual Event |
| 10 CFR 50.72(a) (1) (i), Emergency Class Declaration 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded | |
| Time - Person (Reporting Time:+-3.67 h-0.153 days <br />-0.0218 weeks <br />-0.00503 months <br />) | |
| Opened: | Nicholas Avrakotos 19:49 Jun 30, 2005 |
| NRC Officer: | John Knoke |
| Last Updated: | Jul 1, 2005 |
| 41815 - NRC Website
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Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
FitzPatrick with 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration, 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown, 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded | |
WEEKMONTHYEARENS 525032017-01-22T19:00:00022 January 2017 19:00:00
[Table view]10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded Weld Defect Found During a Shutdown Inspection ENS 524902017-01-14T11:13:00014 January 2017 11:13:00 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded Degraded Condition Due to Through-Wall Leak ENS 520732016-07-08T10:45:0008 July 2016 10:45:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Oil Spill ENS 520452016-06-27T01:15:00027 June 2016 01:15:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to an Oil Spill ENS 517222016-02-10T07:47:00010 February 2016 07:47:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Inadvertent Actuation of One Emergency Siren ENS 516942016-01-29T13:12:00029 January 2016 13:12:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification - Sewage Treatment Plant Discharge Limit Exceeded ENS 505092014-10-04T18:08:0004 October 2014 18:08:00 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded Containment Leak Rate Exceeds Acceptance Criteria ENS 503892014-08-21T12:50:00021 August 2014 12:50:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Inadvertent Actuation of One Emergency Siren ENS 489812013-04-29T18:17:00029 April 2013 18:17:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification of a Freon Leak ENS 489272013-04-16T12:45:00016 April 2013 12:45:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Inadvertent Emergency Siren Activation During Weekly Testing Due to Personnel Error ENS 485012012-11-11T08:55:00011 November 2012 08:55:00 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Reactor Scram Due to Turbine Trip Followed by Unusual Event Declared Due to Main Transformer and Bus Duct Fire ENS 483122012-09-16T14:55:00016 September 2012 14:55:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown Technical Specification Required Shutdown ENS 481042012-07-13T21:40:00013 July 2012 21:40:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification of Emergency Siren Activation ENS 471282011-08-05T23:32:0005 August 2011 23:32:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Inadvertent Emergency Notification Siren Actuation ENS 466592011-03-06T04:15:0006 March 2011 04:15:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Spurious Siren Activiation ENS 462812010-09-27T04:00:00027 September 2010 04:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification - Loss of One Emergency Response Siren ENS 455932009-12-28T20:15:00028 December 2009 20:15:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release ENS 445162008-09-23T19:00:00023 September 2008 19:00:00 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded Degraded Condition Due to Recirc Nozzle Weld Axial Crack ENS 436722007-09-28T17:00:00028 September 2007 17:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Emergency Siren Activated Inadvertently During a Thunderstorm ENS 425492006-05-04T02:30:0004 May 2006 02:30:00 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded Rcic Declared Inoperable Due to Degraded Flow Instrument ENS 424962006-04-13T14:30:00013 April 2006 14:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Inadvertant Actuation of Emergency Notification Sirens ENS 418152005-06-30T23:29:00030 June 2005 23:29:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration, 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown, 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded Primary Containment Inoperable Due to Small Crack in Torus ENS 400722003-08-14T20:26:00014 August 2003 20:26:00 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration, 10 CFR 50.72(b)(3)(iv)(A), System Actuation Unusual Event Declared Due to a Loss of Offsite Power. 2017-01-22T19:00:00 | |