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ENS 45320
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Category
ENS Notification  and Power Reactor
CFR
10 CFR 50.72(b)(3)(v)(B), Loss of Safety Function - Remove Residual Heat +, 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident +, 10 CFR 50.73#a2vii +  and 10 CFR 50.72#b3v +
Current power
100  +
Current reactor mode
Power Operation +
Description
Unit 1 High Pressure Coolant Injection (HP … Unit 1 High Pressure Coolant Injection (HPCI) system was declared inoperable after the 250V RMOV BD breaker 11A1 for the ECCS DIV II Inverter tripped. The cause for the breaker trip is currently being investigated.</br>This event is reportable within 8 hours in accordance with 10CFR 50.72(b)(3)(v) as an event or condition that at the time of discovery could have prevented the fulfillment of a safety function. It also requires a 60 day written report in accordance with 10CFR 50.73(a)(2)(vii).</br>Unit 1 remains at 100% power.</br>NRC Resident Inspector has been notified. NRC Resident Inspector has been notified.  +
Discovered date
21:09:00, 1 September 2009  +
ENS id number
45,320  +
Emergency class
Non Emergency +
Entered date
21:01:00, 1 September 2009  +
Event date
21:09:00, 1 September 2009  +
Event description
Unit 1 High Pressure Coolant Injection (HP … Unit 1 High Pressure Coolant Injection (HPCI) system was declared inoperable after the 250V RMOV BD breaker 11A1 for the ECCS DIV II Inverter tripped. The cause for the breaker trip is currently being investigated.</br>This event is reportable within 8 hours in accordance with 10CFR 50.72(b)(3)(v) as an event or condition that at the time of discovery could have prevented the fulfillment of a safety function. It also requires a 60 day written report in accordance with 10CFR 50.73(a)(2)(vii).</br>Unit 1 remains at 100% power.</br>NRC Resident Inspector has been notified. NRC Resident Inspector has been notified.  +
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 45320 +, ENS 45320 +, ENS 45320 +, ENS 45320 +, ENS 45320 +, ENS 45320 +, ENS 45320 +, ENS 45320 +, ENS 45320 +, ENS 45320 +, ENS 45320 +, ENS 45320 +, ENS 45320 +, ENS 45320 +  and ENS 45320 +
Hours
9.259259e-5 d (0.00222 hours, 1.322751e-5 weeks, 3.044e-6 months)  +
Initial power
100  +
Initial reactor mode
Power Operation +
Last update date
00:00:00, 1 September 2009  +
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>.
22:31:49, 24 September 2017  +
NRC officer
Bill Huffman +
Notification date
21:01:00, 1 September 2009  +
Originated by
Joe Bennett +
Reactor critical
true  +
Reactor scram
false  +
Reactor type
GE-4 +
Region
NRC Region 2 +
Reporting criterion
10 CFR 50.72(b)(3)(v)(B), Loss of Safety Function - Remove Residual Heat +  and 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident +
Reporting time
-0.00542 d (-0.13 hours, -7.738095e-4 weeks, -1.78074e-4 months)  +
Site
Browns Ferry +
Start date
21:09:00, 1 September 2009  +
State
Alabama +
System
High Pressure Coolant Injection +
Title
High Pressure Coolant Injection Inoperable  +
Topic
Time of Discovery +
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/2009/20090902en.html#en45320  +
Unit
1  +
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