Browse wiki

Jump to navigation Jump to search
ENS 41102
Show incoming properties 
Category
ENS Notification  and Power Reactor
CFR
10 CFR 50.72 +, 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident +, 10 CFR 50.72(b)(3)(ii)(B), Unanalyzed Condition +, 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material +, 10 CFR 50.72#b3iiB +  and 10 CFR 50.72#b3vC +
Current power
100  +
Current reactor mode
Power Operation +
Description
A single point vulnerability has been iden … A single point vulnerability has been identified in the dousing system for the Emergency Containment Filter (ECF) System that could have resulted in dousing all filter units with borated water during an accident. Inadvertent dousing of the filters could adversely impact the methyl-iodide removal efficiency of the ECFs assumed in the plant safety analyses.</br>This condition applies to both Turkey Point units. However, it is reportable under 10 CFR 50.72 only with respect to Unit 4 since Unit 4 is currently in operation while Unit 3 is in a refueling outage.</br>The design deficiency has been evaluated in accordance with NRC Generic Letter 91-18. The ECFs have been determined to be operable but nonconforming and reportable under 10 CFR 50.72(b)(3)(ii)(B) and 10 CFR 50.72(b)(3)(v)(C)and (D).</br>A design change is being prepared to correct the vulnerability on both units.</br>The licensee has notified the NRC resident inspector.e has notified the NRC resident inspector.  +
Discovered date
18:00:00, 7 October 2004  +
Emergency class
Non Emergency +
Entered date
20:24:00, 7 October 2004  +
Event date
18:00:00, 7 October 2004  +
Event description
A single point vulnerability has been iden … A single point vulnerability has been identified in the dousing system for the Emergency Containment Filter (ECF) System that could have resulted in dousing all filter units with borated water during an accident. Inadvertent dousing of the filters could adversely impact the methyl-iodide removal efficiency of the ECFs assumed in the plant safety analyses.</br>This condition applies to both Turkey Point units. However, it is reportable under 10 CFR 50.72 only with respect to Unit 4 since Unit 4 is currently in operation while Unit 3 is in a refueling outage.</br>The design deficiency has been evaluated in accordance with NRC Generic Letter 91-18. The ECFs have been determined to be operable but nonconforming and reportable under 10 CFR 50.72(b)(3)(ii)(B) and 10 CFR 50.72(b)(3)(v)(C)and (D).</br>A design change is being prepared to correct the vulnerability on both units.</br>The licensee has notified the NRC resident inspector.e has notified the NRC resident inspector.  +
Generic letter
NRC Generic Letter 91-18, Information to Licensees Regarding Two NRC Inspection Manual Sections on Resolution of Degraded and Nonconforming Conditions and on Operability +
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>.
ENS 41102 +, ENS 41102 +, ENS 41102 +, ENS 41102 +, ENS 41102 +, ENS 41102 +, ENS 41102 +, ENS 41102 +, ENS 41102 +, ENS 41102 +, ENS 41102 +, ENS 41102 +, ENS 41102 +, ENS 41102 +, ENS 41102 +  and ENS 41102 +
Initial power
100  +
Initial reactor mode
Power Operation +
Last update date
00:00:00, 7 October 2004  +
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>.
02:22:36, 2 March 2018  +
NRC officer
Bill Huffman +
Notification date
20:24:00, 7 October 2004  +
Originated by
Chuck Mason +
Reactor critical
true  +
Reactor scram
false  +
Reactor type
Westinghouse PWR 3-Loop +
Region
NRC Region 2 +
Reporting criterion
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident +, 10 CFR 50.72(b)(3)(ii)(B), Unanalyzed Condition +  and 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material +
Reporting time
0.1 d (2.4 hours, 0.0143 weeks, 0.00329 months)  +
Site
Turkey Point +
Start date
18:00:00, 7 October 2004  +
State
Florida +
Title
Single Point Vulnerability in Emergency Containment Filter Dousing System  +
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.
http://www.nrc.gov/reading-rm/doc-collections/event-status/event/2004/20041008en.html#en41102  +
Unit
4  +
 
Retrieved from "https://kanterella.com/Special:Browse/:ENS-5F41102"