ENS Event | |
|---|---|
13:00 Nov 18, 2013 | |
| Title | Ultrasonic Examination Identified Flaw in Reactor Vessel Head Penetration |
| Event Description | On November 18, 2013, while the Harris Nuclear Plant was shut down for a scheduled refueling outage, the reactor vessel head penetrations were being examined in accordance with lnservice Inspection Program. Ultrasonic examinations identified a flaw in a head penetration nozzle. Bare metal visual inspection of the outer surface of the reactor vessel head revealed no indications of leakage. The unit is in a safe and stable condition and structural integrity of the reactor vessel was maintained. The flaw will be repaired prior to startup from the refueling outage.
The flaw and repair have no impact to the health or safety of the public. The NRC Senior Resident Inspector has been informed. |
| Where | |
|---|---|
Harris  North Carolina (NRC Region 2) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded | |
| Time - Person (Reporting Time:+2.05 h0.0854 days <br />0.0122 weeks <br />0.00281 months <br />) | |
| Opened: | Scott Williamson 15:03 Nov 18, 2013 |
| NRC Officer: | Dong Park |
| Last Updated: | Nov 18, 2013 |
| 49553 - NRC Website
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WEEKMONTHYEARENS 533262018-04-11T18:30:00011 April 2018 18:30:00
[Table view]10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded Degraded Condition Due to Indication During Ultrasonic Examination of Reactor Nozzle Penetration ENS 522972016-10-15T12:57:00015 October 2016 12:57:00 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded Reactor Vessel Head Penetration Nozzle Flaw ENS 509622015-04-07T15:47:0007 April 2015 15:47:00 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded Reactor Vessel Head Penetration Flaw Identified During Inservice Inspection ENS 495532013-11-18T13:00:00018 November 2013 13:00:00 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded Ultrasonic Examination Identified Flaw in Reactor Vessel Head Penetration ENS 490382013-05-15T10:49:00015 May 2013 10:49:00 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown, 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded, 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material Technical Specification Required Shutdown Due to Discovery of an Unacceptable Flaw During Data Review ENS 491312012-04-27T18:33:00027 April 2012 18:33:00 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded Reactor Head Nozzle Penetration Flaws Identified 2018-04-11T18:30:00 | |