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The following information was provided by … The following information was provided by the licensee via phone and email:</br>On April 15, 2026, at 0920 EDT, while performing examinations of the 66 reactor vessel head penetrations, it was determined that two penetrations did not meet ASME Code Section XI (requirements). Penetrations 54 and 59 will require repair prior to returning the vessel head to service. The indications were not through-wall and there was no evidence of leakage based on inspections performed on the top of the reactor vessel head. The examinations were being performed to meet the requirements of 10 CFR 50.55a(g)(6)(ii)(D) and ASME code case N-729-6 to find potential flaws/indications before they grow to a size that could potentially jeopardize the structural integrity of the reactor vessel head pressure boundary. This event is being reported as an eight-hour, non-emergency notification per 10 CFR 50.72(b)(3)(ii)(A).</br>There was no impact on the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified. NRC Resident Inspector has been notified. +
13:20:00, 15 April 2026 +
58,242 +
13:11:00, 15 April 2026 +
13:20:00, 15 April 2026 +
The following information was provided by … The following information was provided by the licensee via phone and email:</br>On April 15, 2026, at 0920 EDT, while performing examinations of the 66 reactor vessel head penetrations, it was determined that two penetrations did not meet ASME Code Section XI (requirements). Penetrations 54 and 59 will require repair prior to returning the vessel head to service. The indications were not through-wall and there was no evidence of leakage based on inspections performed on the top of the reactor vessel head. The examinations were being performed to meet the requirements of 10 CFR 50.55a(g)(6)(ii)(D) and ASME code case N-729-6 to find potential flaws/indications before they grow to a size that could potentially jeopardize the structural integrity of the reactor vessel head pressure boundary. This event is being reported as an eight-hour, non-emergency notification per 10 CFR 50.72(b)(3)(ii)(A).</br>There was no impact on the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified. NRC Resident Inspector has been notified. +
Has query"Has query" is a predefined property that represents meta information (in form of a <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Subobject">subobject</a>) about individual queries and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
00:00:00, 15 April 2026 +
Modification date"Modification date" is a predefined property that corresponds to the date of the last modification of a subject and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
03:40:57, 20 April 2026 +
13:11:00, 15 April 2026 +
Processing error"Processing error" is a predefined property provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a> and represents errors that appeared in connection with improper value annotations or input processing.
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13:20:00, 15 April 2026 +
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