ENS 52503
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ENS Event | |
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19:00 Jan 22, 2017 | |
Title | Weld Defect Found During a Shutdown Inspection |
Event Description | Information from a Manual Phased Array UT (Ultrasonic Testing) examination of the 'A' RHR LPCI [Residual Heat Removal Low Pressure Coolant Injection] Injection Loop indicates an axially oriented indication 0.95 inch in length and 0.81 inch through wall. This is on weld number 24-10-130 (T to Valve dissimilar metal weld).
This event is being reported as a degraded condition pursuant to 10CFR50.72(b)(3)(ii)(A) based on the fact that the indications result in a defect in the primary coolant system which cannot be found acceptable under ASME Section XI. The licensee informed the NRC Resident Inspector. The weld is located where the RHR piping taps into the reactor vessel. The wall thickness at this location is 1.15 inches. |
Where | |
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Fitzpatrick ![]() New York (NRC Region 1) | |
Reporting | |
10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded | |
Time - Person (Reporting Time:+-2.68 h-0.112 days <br />-0.016 weeks <br />-0.00367 months <br />) | |
Opened: | Thomas Yurkon 16:19 Jan 22, 2017 |
NRC Officer: | Mark Abramovitz |
Last Updated: | Jan 22, 2017 |
52503 - NRC Website
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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 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 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 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 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 2017-01-22T19:00:00 | |
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