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On 8/20/2014, 0820 hrs (EDT), the Plant Sh … On 8/20/2014, 0820 hrs (EDT), the Plant Shift Superintendent was notified of the following condition:</br>During a maintenance evolution to change the machine drive unit (MDU) software, one of the four primary isolation valves comprising the machine isolation valve (MIV) set did not close as required. Specifically, the purge vacuum (PV) isolation valve did not close. All other isolation valves did close as required.</br>This event is being reported as a loss or degradation of an IROFS (Item Relied on for Safety) that results in a failure to meet the performance requirements of Section 70.61 (and is reportable per 70.50(b)(2)).</br>The licensee will notify the NRC Resident Inspector.</br>* * * RETRACTION PROVIDED BY ERIC SPAETH TO JEFF ROTTON AT 1543 EDT ON 09/08/2014 * * *</br>On 09/08/2014, the Plant Shift Superintendent, with concurrence of USEC-ACP RO (Regulatory Oversight) determined that this event can be retracted. </br>Engineering Evaluation, EE-2101-0053 Rev. 0, establishes the basis for retracting Event Number 50384. The retraction is based upon an analysis showing that failure of the purge vacuum (PV) isolation valve in the machine isolation valve (MIV) IROFS does not create a condition that results in a failure to meet the performance requirements of 10 CFR 70.61.</br>The licensee will notify the NRC Resident Inspector. </br>Notified R2DO (Seymour) and NMSS EO (Habighorst).d R2DO (Seymour) and NMSS EO (Habighorst). +
12:20:00, 20 August 2014 +
50,384 +
18:21:00, 20 August 2014 +
12:20:00, 20 August 2014 +
On 8/20/2014, 0820 hrs (EDT), the Plant Sh … On 8/20/2014, 0820 hrs (EDT), the Plant Shift Superintendent was notified of the following condition:</br>During a maintenance evolution to change the machine drive unit (MDU) software, one of the four primary isolation valves comprising the machine isolation valve (MIV) set did not close as required. Specifically, the purge vacuum (PV) isolation valve did not close. All other isolation valves did close as required.</br>This event is being reported as a loss or degradation of an IROFS (Item Relied on for Safety) that results in a failure to meet the performance requirements of Section 70.61 (and is reportable per 70.50(b)(2)).</br>The licensee will notify the NRC Resident Inspector.</br>* * * RETRACTION PROVIDED BY ERIC SPAETH TO JEFF ROTTON AT 1543 EDT ON 09/08/2014 * * *</br>On 09/08/2014, the Plant Shift Superintendent, with concurrence of USEC-ACP RO (Regulatory Oversight) determined that this event can be retracted. </br>Engineering Evaluation, EE-2101-0053 Rev. 0, establishes the basis for retracting Event Number 50384. The retraction is based upon an analysis showing that failure of the purge vacuum (PV) isolation valve in the machine isolation valve (MIV) IROFS does not create a condition that results in a failure to meet the performance requirements of 10 CFR 70.61.</br>The licensee will notify the NRC Resident Inspector. </br>Notified R2DO (Seymour) and NMSS EO (Habighorst).d R2DO (Seymour) and NMSS EO (Habighorst). +
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, 8 September 2014 +
SNM-2011 +
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>.
23:07:53, 24 November 2018 +
18:21:00, 20 August 2014 +
0.251 d (6.02 hours, 0.0358 weeks, 0.00825 months) +
12:20:00, 20 August 2014 +
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.