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The condition described below is being rep … The condition described below is being reported as an unanalyzed condition per 10 CFR 50.72(b)(3)(ii)(B) and per the guidance of NUREG-1022, Rev. 3.</br>On 03/06/2014 at 0906 PST, Diablo Canyon Power Plant (DCPP) identified a nonconforming condition involving the Emergency Diesel Generator (EDG) ventilation exhaust plenums installed in Unit 1 and Unit 2. Specifically, the radiator exhaust plenums and exhaust piping need to be re-evaluated to ensure adequate protection against flying debris that could be generated by a tornado. </br>The occurrence of such an event is highly unlikely and there is no imminent concern regarding severe weather involving tornados. The EDGs are located inside the power plant structure and are capable of performing their safety function. Compensatory measures are being developed to address the associated nonconformance.</br>This event does not adversely affect the health and safety of the public.</br>The licensee informed the NRC Resident Inspector." </br>* * * UPDATE PROVIDED BY RUSS CRUZEN TO JEFF ROTTON AT 2245 EDT ON 09/09/2014 * * *</br>This condition does not adversely affect the health and safety of the public.</br>Based on an extent of condition review being performed for this event, the issue identified in the original event notification 49879 has also been determined to similarly affect the ventilation systems associated with the Unit 1 and 2 Vital 480 volt AC switchgear and battery/inverter equipment.</br>The condition described in this update is being reported as an unanalyzed condition per 10 CFR 50.72(b)(3)(ii)(B) and as an event or condition that could have prevented the fulfillment of a safety function per 10 CFR 50.72(b)(3)(v)(A).</br>Compensatory measures are being developed to address the associated condition.</br>The licensee informed the NRC Resident Inspector.</br>Notified R4DO (Azua)C Resident Inspector.
Notified R4DO (Azua) +
17:06:00, 6 March 2014 +
19:33:00, 6 March 2014 +
17:06:00, 6 March 2014 +
The condition described below is being rep … The condition described below is being reported as an unanalyzed condition per 10 CFR 50.72(b)(3)(ii)(B) and per the guidance of NUREG-1022, Rev. 3.</br>On 03/06/2014 at 0906 PST, Diablo Canyon Power Plant (DCPP) identified a nonconforming condition involving the Emergency Diesel Generator (EDG) ventilation exhaust plenums installed in Unit 1 and Unit 2. Specifically, the radiator exhaust plenums and exhaust piping need to be re-evaluated to ensure adequate protection against flying debris that could be generated by a tornado. </br>The occurrence of such an event is highly unlikely and there is no imminent concern regarding severe weather involving tornados. The EDGs are located inside the power plant structure and are capable of performing their safety function. Compensatory measures are being developed to address the associated nonconformance.</br>This event does not adversely affect the health and safety of the public.</br>The licensee informed the NRC Resident Inspector." </br>* * * UPDATE PROVIDED BY RUSS CRUZEN TO JEFF ROTTON AT 2245 EDT ON 09/09/2014 * * *</br>This condition does not adversely affect the health and safety of the public.</br>Based on an extent of condition review being performed for this event, the issue identified in the original event notification 49879 has also been determined to similarly affect the ventilation systems associated with the Unit 1 and 2 Vital 480 volt AC switchgear and battery/inverter equipment.</br>The condition described in this update is being reported as an unanalyzed condition per 10 CFR 50.72(b)(3)(ii)(B) and as an event or condition that could have prevented the fulfillment of a safety function per 10 CFR 50.72(b)(3)(v)(A).</br>Compensatory measures are being developed to address the associated condition.</br>The licensee informed the NRC Resident Inspector.</br>Notified R4DO (Azua)C Resident Inspector.
Notified R4DO (Azua) +
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>.
05000275/LER-2014-003-02, Regarding Unanalyzed Condition Affecting Emergency Diesel Generators, Tornado Missiles +, 05000275/LER-2014-003-01, Regarding Unanalyzed Condition Affecting Unit 1 and 2 Emergency Diesel Generators, Tornado Missiles +, 05000275/LER-2014-003, Regarding Unanalyzed Condition Affecting Unit 1 and 2 Emergency Diesel Generators, Tornado Missiles +, Regarding Unanalyzed Condition Affecting Unit 1 and 2 Emergency Diesel Generators +, Tornado Missiles + and Regarding Unanalyzed Condition Affecting Emergency Diesel Generators +
00:00:00, 9 September 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>.
01:49:43, 2 March 2018 +
19:33:00, 6 March 2014 +
false +
0.102 d (2.45 hours, 0.0146 weeks, 0.00336 months) +
17:06:00, 6 March 2014 +
Unanalyzed Condition Regarding Potential Tornado Missile Damage to Emergency Diesel Exhaust Plenum +
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.