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On September 22, 2016, at 0320 (EDT), Seco … On September 22, 2016, at 0320 (EDT), Secondary Containment Zone 2 (Unit 2 Reactor Building) differential pressure lowered to 0.15 (inch) WG due to a stuck non-safety related exhaust damper on the in service Zone 2 exhaust fan. Required differential pressure per SR 3.6.4.1.1 could not be maintained. Zone 2 differential pressure recovered to greater than 0.25 (inch) WG on September 22, 2016 at 0342 (EDT) by starting the standby Zone 2 exhaust fan. Zone 1 (Unit 1 Reactor Building) and Zone 3 (Unit 1&2 Reactor Buildings) ventilation remained in service and stable.</br>This event is being reported under 10 CFR 50.72(b)(3)(v)(C) and per the guidance of NUREG 1022 Rev 3 section 3.2.7 as a loss of a Safety Function. There is no redundant Susquehanna Secondary Containment System.</br>The Licensee notified the NRC Resident Inspector. Licensee notified the NRC Resident Inspector. +
07:20:00, 22 September 2016 +
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10:58:00, 22 September 2016 +
07:20:00, 22 September 2016 +
On September 22, 2016, at 0320 (EDT), Seco … On September 22, 2016, at 0320 (EDT), Secondary Containment Zone 2 (Unit 2 Reactor Building) differential pressure lowered to 0.15 (inch) WG due to a stuck non-safety related exhaust damper on the in service Zone 2 exhaust fan. Required differential pressure per SR 3.6.4.1.1 could not be maintained. Zone 2 differential pressure recovered to greater than 0.25 (inch) WG on September 22, 2016 at 0342 (EDT) by starting the standby Zone 2 exhaust fan. Zone 1 (Unit 1 Reactor Building) and Zone 3 (Unit 1&2 Reactor Buildings) ventilation remained in service and stable.</br>This event is being reported under 10 CFR 50.72(b)(3)(v)(C) and per the guidance of NUREG 1022 Rev 3 section 3.2.7 as a loss of a Safety Function. There is no redundant Susquehanna Secondary Containment System.</br>The Licensee notified the NRC Resident Inspector. Licensee notified the NRC Resident Inspector. +
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00:00:00, 22 September 2016 +
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>.
01:44:10, 2 March 2018 +
10:58:00, 22 September 2016 +
true +
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0.151 d (3.63 hours, 0.0216 weeks, 0.00497 months) +
07:20:00, 22 September 2016 +
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