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On May 27, 2015, at 0952 CDT, the Control … On May 27, 2015, at 0952 CDT, the Control Room Emergency Ventilation (CREV) system was declared inoperable due to opening a ventilation duct hatch to facilitate fire damper inspection without administrative controls. The hatch was opened and upon discovery was immediately shut, re-establishing the boundary of the Control Room Envelope. As a result, Technical Specification 3.7.4, Condition C, was entered and subsequently exited.</br>The CREV system maintains a habitable control room environment and ensures the operability of components in the control room emergency zone during accident conditions as well as protection of the operators from a high dose environment assumed during a design basis accident.</br>This notification is being made in accordance with 10 CFR 50.72(b)(3)(v)(D) because the CREV system is a single train system, and loss of the CREV system could impact the plant's ability to mitigate the consequences of an accident as stated in Chapter 6 of the UFSAR. This event is also reportable under 10 CFR 50.72(b)(3)(xiii) since this condition also impacts the control room as an Emergency Response Facility.</br>At 0955, Technical Specification 3.7.4, Condition C, for CREV System Inoperable due to inoperable Control Room Envelope was exited.</br>The NRC Resident Inspector has been notified. NRC Resident Inspector has been notified. +
14:52:00, 27 May 2015 +
51,093 +
18:37:00, 27 May 2015 +
14:52:00, 27 May 2015 +
On May 27, 2015, at 0952 CDT, the Control … On May 27, 2015, at 0952 CDT, the Control Room Emergency Ventilation (CREV) system was declared inoperable due to opening a ventilation duct hatch to facilitate fire damper inspection without administrative controls. The hatch was opened and upon discovery was immediately shut, re-establishing the boundary of the Control Room Envelope. As a result, Technical Specification 3.7.4, Condition C, was entered and subsequently exited.</br>The CREV system maintains a habitable control room environment and ensures the operability of components in the control room emergency zone during accident conditions as well as protection of the operators from a high dose environment assumed during a design basis accident.</br>This notification is being made in accordance with 10 CFR 50.72(b)(3)(v)(D) because the CREV system is a single train system, and loss of the CREV system could impact the plant's ability to mitigate the consequences of an accident as stated in Chapter 6 of the UFSAR. This event is also reportable under 10 CFR 50.72(b)(3)(xiii) since this condition also impacts the control room as an Emergency Response Facility.</br>At 0955, Technical Specification 3.7.4, Condition C, for CREV System Inoperable due to inoperable Control Room Envelope was exited.</br>The NRC Resident Inspector has been notified. NRC Resident Inspector has been notified. +
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100 +
00:00:00, 27 May 2015 +
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>.
22:17:47, 24 September 2017 +
18:37:00, 27 May 2015 +
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0.156 d (3.75 hours, 0.0223 weeks, 0.00514 months) +
14:52:00, 27 May 2015 +
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