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The following information was summarized f … The following information was summarized from the licensee via phone and email: On September 24, 2025, at 1511 MDT, a high-power trip occurred (operation of safety channels 2 and 3). The reactor was being operated by a senior reactor operator (SRO) and a student authorized operator. A positive-period excess reactivity measurement was being performed. The reactor power rose to 5.64 watts. The technical specifications power limit of 6 watts plus was not exceeded, and both safety channels functioned to shut the reactor down. This prompt notification for a high-power trip is in accordance with current procedures and technical specification 6.9.2.a.7. The proximate cause of this event was operator distraction. The reactor room had two visitors at the time of the event, an NRC inspector and a University of New Mexico nuclear engineering instructor. The instructor was engaging the student authorized operator and the SRO on matters relating to a laboratory activity ongoing in another part of the building. The SRO responded to the rising power too slowly to avoid the high-power trip.r too slowly to avoid the high-power trip. +
21:11:00, 24 September 2025 +
57,948 +
17:21:00, 24 September 2025 +
21:11:00, 24 September 2025 +
The following information was summarized f … The following information was summarized from the licensee via phone and email: On September 24, 2025, at 1511 MDT, a high-power trip occurred (operation of safety channels 2 and 3). The reactor was being operated by a senior reactor operator (SRO) and a student authorized operator. A positive-period excess reactivity measurement was being performed. The reactor power rose to 5.64 watts. The technical specifications power limit of 6 watts plus was not exceeded, and both safety channels functioned to shut the reactor down. This prompt notification for a high-power trip is in accordance with current procedures and technical specification 6.9.2.a.7. The proximate cause of this event was operator distraction. The reactor room had two visitors at the time of the event, an NRC inspector and a University of New Mexico nuclear engineering instructor. The instructor was engaging the student authorized operator and the SRO on matters relating to a laboratory activity ongoing in another part of the building. The SRO responded to the rising power too slowly to avoid the high-power trip.r too slowly to avoid the high-power trip. +
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, 24 September 2025 +
R-102 +
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>.
11:20:04, 26 September 2025 +
17:21:00, 24 September 2025 +
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.
-0.16 d (-3.83 hours, -0.0228 weeks, -0.00525 months) +
21:11:00, 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.