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The following information was provided by … The following information was provided by the licensee via phone and email:</br>At 0902 EST, on 10/10/2024, with Millstone Unit 3 in mode 1 at 100 percent power, it was discovered that the secondary containment boundary was inoperable when the latch that secured a hatch that was part of the secondary containment boundary was not functional. The latch was repaired by 1115, on 10/10/2024, and the secondary containment boundary was declared operable at 1200, on 10/10/2024. The initial assessment of reportability concluded that an immediate report was not required. However, upon additional review, it has been determined that because the secondary containment boundary is a single-train system that performs a safety function, an 8-hour report was required in accordance with 10 CFR 50. 72 (b)(3)(v)(C) and (D). </br>This report should have been made on 10/10/2024 and is late. </br>There has been no impact to Unit 2, and Unit 3 continues to operate in mode 1 at 100 percent power.</br>There is 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. +
14:02:00, 10 October 2024 +
57,422 +
13:38:00, 13 November 2024 +
14:02:00, 10 October 2024 +
The following information was provided by … The following information was provided by the licensee via phone and email:</br>At 0902 EST, on 10/10/2024, with Millstone Unit 3 in mode 1 at 100 percent power, it was discovered that the secondary containment boundary was inoperable when the latch that secured a hatch that was part of the secondary containment boundary was not functional. The latch was repaired by 1115, on 10/10/2024, and the secondary containment boundary was declared operable at 1200, on 10/10/2024. The initial assessment of reportability concluded that an immediate report was not required. However, upon additional review, it has been determined that because the secondary containment boundary is a single-train system that performs a safety function, an 8-hour report was required in accordance with 10 CFR 50. 72 (b)(3)(v)(C) and (D). </br>This report should have been made on 10/10/2024 and is late. </br>There has been no impact to Unit 2, and Unit 3 continues to operate in mode 1 at 100 percent power.</br>There is 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>.
100 +
00:00:00, 13 November 2024 +
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>.
12:20:04, 15 November 2024 +
13:38:00, 13 November 2024 +
true +
false +
33.942 d (814.6 hours, 4.849 weeks, 1.116 months) +
14:02:00, 10 October 2024 +
URL"URL" is a <a href="/Special:Types/URL" title="Special:Types/URL">type</a> and predefined property provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a> to represent URI/URL values.