Browse wiki
Jump to navigation
Jump to search
The following information was provided by … The following information was provided by the licensee via phone and email: "On September 24, 2025, at 1347 CDT, Arkansas Nuclear One, Unit 1, (ANO-1) experienced an issue with the X-01B main phase transformer which led to an automatic trip on reactor protection system (RPS). "ANO-1 is currently stable in mode 3, maintaining pressure and temperature with the P-1A and P-1B main feedwater pumps and steaming to the main condenser. All rods inserted and systems functioned as expected. "There is no radiological release on either unit as a result of this event. "This report satisfies the reporting criteria of 10 CFR 50.72(b)(2)(iv)(B) and 10 CFR 50.72(b)(3)(iv)(A) for the reactor protection system actuation. "The NRC Senior Resident Inspector has been notified. "Unit 2 was not affected." The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance: ANO-1 retains access to all normal sources of offsite power.ss to all normal sources of offsite power. +
18:47:00, 24 September 2025 +
17:43:00, 24 September 2025 +
18:47:00, 24 September 2025 +
The following information was provided by … The following information was provided by the licensee via phone and email: "On September 24, 2025, at 1347 CDT, Arkansas Nuclear One, Unit 1, (ANO-1) experienced an issue with the X-01B main phase transformer which led to an automatic trip on reactor protection system (RPS). "ANO-1 is currently stable in mode 3, maintaining pressure and temperature with the P-1A and P-1B main feedwater pumps and steaming to the main condenser. All rods inserted and systems functioned as expected. "There is no radiological release on either unit as a result of this event. "This report satisfies the reporting criteria of 10 CFR 50.72(b)(2)(iv)(B) and 10 CFR 50.72(b)(3)(iv)(A) for the reactor protection system actuation. "The NRC Senior Resident Inspector has been notified. "Unit 2 was not affected." The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance: ANO-1 retains access to all normal sources of offsite power.ss to all normal sources of offsite power. +
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>.
90 +
00:00:00, 24 September 2025 +
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>.
11:20:05, 26 September 2025 +
17:43:00, 24 September 2025 +
true +
-0.0446 d (-1.07 hours, -0.00637 weeks, -0.00147 months) +
18:47:00, 24 September 2025 +
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.