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ENS 46019
Show incoming properties 
Category
ENS Notification  and Power Reactor
CFR
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident +  and 10 CFR 50.72#b3v +
Current power
89  +
Current reactor mode
Power Operation +
Description
On 06/16/10 at 1320 CDT, while performing … On 06/16/10 at 1320 CDT, while performing 2-SR-3.3.6.1.6(3), HPCI Time Delay Relay Calibration, HPCI was discovered to be isolated. After review of the Integrated Computer System (ICS), HPCI (steam supply valve) had isolated at 1258 CDT. Cause of isolation is unknown with investigation in progress.</br>This incident is reportable as an 8-hour ENS notification under 10CFR 50.72 (b)(3)(v) as 'any event or condition that at the time of discovery could have prevented the fulfillment of the safety function of structures or systems that are needed to mitigate the consequences of an accident.'</br>It also requires a 60 day written report. The NRC Resident Inspector has been notified. NRC Resident Inspector has been notified.  +
Discovered date
17:58:00, 16 June 2010  +
Emergency class
Non Emergency +
Entered date
21:01:00, 16 June 2010  +
Event date
17:58:00, 16 June 2010  +
Event description
On 06/16/10 at 1320 CDT, while performing … On 06/16/10 at 1320 CDT, while performing 2-SR-3.3.6.1.6(3), HPCI Time Delay Relay Calibration, HPCI was discovered to be isolated. After review of the Integrated Computer System (ICS), HPCI (steam supply valve) had isolated at 1258 CDT. Cause of isolation is unknown with investigation in progress.</br>This incident is reportable as an 8-hour ENS notification under 10CFR 50.72 (b)(3)(v) as 'any event or condition that at the time of discovery could have prevented the fulfillment of the safety function of structures or systems that are needed to mitigate the consequences of an accident.'</br>It also requires a 60 day written report. The NRC Resident Inspector has been notified. NRC Resident Inspector has been notified.  +
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ENS 46019 +, ENS 46019 +, ENS 46019 +, ENS 46019 +, ENS 46019 +, ENS 46019 +, ENS 46019 +, ENS 46019 +, ENS 46019 +, ENS 46019 +, ENS 46019 +, ENS 46019 +, ENS 46019 +  and ENS 46019 +
Initial power
89  +
Initial reactor mode
Power Operation +
Last update date
00:00:00, 16 June 2010  +
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>.
22:30:04, 24 September 2017  +
NRC officer
Bill Huffman +
Notification date
21:01:00, 16 June 2010  +
Originated by
Ray Swafford +
Reactor critical
true  +
Reactor scram
false  +
Reactor type
GE-4 +
Region
NRC Region 2 +
Reporting criterion
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident +
Reporting time
0.127 d (3.05 hours, 0.0182 weeks, 0.00418 months)  +
Site
Browns Ferry +
Start date
17:58:00, 16 June 2010  +
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/2010/20100617en.html#en46019  +
Unit
2  +
 
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