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On 10/16/2013 at 14:20 (CDT), the Technica … On 10/16/2013 at 14:20 (CDT), the Technical Support Center (TSC) Emergency Makeup Filter Flow Control Damper (OVV145Y) was discovered degraded and non functional during planned maintenance activities. The degraded damper adversely impacted the TSC ventilation system function.</br>On 10/16/2013 at approximately 15:00 (CDT), administrative actions were developed and briefed to isolate instrument air to the degraded nonfunctional damper OVV 145Y providing the capability to restore TSC Emergency Makeup Filter functionality. Isolating instrument air to the degraded damper places the damper in the failed open position, thereby restoring TSC Emergency Makeup Filter functionality.</br>On 10/16/2013 at 20:25 (CDT), instrument air was isolated to the degraded damper OVV 145Y under administrative controls restoring TSC Emergency Makeup Filter functionality. This action was taken after determining no adverse affects on system operation.</br>On 10/30/2013, degraded damper OVV145Y was repaired, instrument air restored and post maintenance testing completed, thereby restoring the degraded TSC emergency Makeup Filter Unit flow control damper functionality. This event is reportable per 10CFR50.72(b)(3)(xiii) for a major loss of emergency assessment capability because the emergent degraded TSC flow control damper OVV145Y adversely impacted the function of TSC Emergency Makeup Filter and was not restored within the TSC activation time (60 minutes).</br>This event was originally determined not reportable because the capability to restore within the TSC activation time (60 minutes) existed from the time of discovery. Upon further review it was determined to be reportable because the degraded damper 0VV145Y was not restored to service within the TSC activation time (60 minutes).</br>The licensee has notified the NRC Resident Inspector.e has notified the NRC Resident Inspector. +
19:20:00, 16 October 2013 +
49,723 +
18:33:00, 14 January 2014 +
19:20:00, 16 October 2013 +
On 10/16/2013 at 14:20 (CDT), the Technica … On 10/16/2013 at 14:20 (CDT), the Technical Support Center (TSC) Emergency Makeup Filter Flow Control Damper (OVV145Y) was discovered degraded and non functional during planned maintenance activities. The degraded damper adversely impacted the TSC ventilation system function.</br>On 10/16/2013 at approximately 15:00 (CDT), administrative actions were developed and briefed to isolate instrument air to the degraded nonfunctional damper OVV 145Y providing the capability to restore TSC Emergency Makeup Filter functionality. Isolating instrument air to the degraded damper places the damper in the failed open position, thereby restoring TSC Emergency Makeup Filter functionality.</br>On 10/16/2013 at 20:25 (CDT), instrument air was isolated to the degraded damper OVV 145Y under administrative controls restoring TSC Emergency Makeup Filter functionality. This action was taken after determining no adverse affects on system operation.</br>On 10/30/2013, degraded damper OVV145Y was repaired, instrument air restored and post maintenance testing completed, thereby restoring the degraded TSC emergency Makeup Filter Unit flow control damper functionality. This event is reportable per 10CFR50.72(b)(3)(xiii) for a major loss of emergency assessment capability because the emergent degraded TSC flow control damper OVV145Y adversely impacted the function of TSC Emergency Makeup Filter and was not restored within the TSC activation time (60 minutes).</br>This event was originally determined not reportable because the capability to restore within the TSC activation time (60 minutes) existed from the time of discovery. Upon further review it was determined to be reportable because the degraded damper 0VV145Y was not restored to service within the TSC activation time (60 minutes).</br>The licensee has notified the NRC Resident Inspector.e has notified the NRC Resident Inspector. +
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>.
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00:00:00, 14 January 2014 +
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>.
01:52:03, 2 March 2018 +
18:33:00, 14 January 2014 +
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89.926 d (2,158.22 hours, 12.847 weeks, 2.956 months) +
19:20:00, 16 October 2013 +
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.