Browse wiki

Jump to navigation Jump to search
ENS 43860
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 +, 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material +  and 10 CFR 50.72#b3V +
Current power
100  +
Current reactor mode
Power Operation +
Description
Annulus Exhaust Gas Treatment System (AEGT … Annulus Exhaust Gas Treatment System (AEGTS) 'A' was removed from service (INOPERABLE) to obtain a charcoal sample. AECTS 'B' Train was the OPERABLE Train. At 0825 hours, the charcoal plenum for the 'A' train was opened to obtain a charcoal sample resulting in alarms for AECTS 'B' low flow and Annulus low differential pressure. Based on this indication AEGTS 'B' and secondary containment were INOPERABLE. AEGTS 'B' flow was restored to normal following closure of the charcoal plenum and annulus differential pressure was restored to normal at 0833 hours, restoring secondary containment.</br>AEGTS 'B' was declared operable at 0845 hours. Early indication is that a discharge damper in the AEGTS 'A' train had not operated properly. This condition was determined to be reportable in accordance with 10 CFR 50.72(b)(3)(V)(C) and (D), as condition that could have prevented the safety function of structures or systems that are needed to: (C) Control the release of radioactive material; or (D) Mitigate the Consequences of an accident.</br>The licensee notified the NRC Resident Inspector.ensee notified the NRC Resident Inspector.  +
Discovered date
13:25:00, 21 December 2007  +
Emergency class
Non Emergency +
Entered date
12:31:00, 21 December 2007  +
Event date
13:25:00, 21 December 2007  +
Event description
Annulus Exhaust Gas Treatment System (AEGT … Annulus Exhaust Gas Treatment System (AEGTS) 'A' was removed from service (INOPERABLE) to obtain a charcoal sample. AECTS 'B' Train was the OPERABLE Train. At 0825 hours, the charcoal plenum for the 'A' train was opened to obtain a charcoal sample resulting in alarms for AECTS 'B' low flow and Annulus low differential pressure. Based on this indication AEGTS 'B' and secondary containment were INOPERABLE. AEGTS 'B' flow was restored to normal following closure of the charcoal plenum and annulus differential pressure was restored to normal at 0833 hours, restoring secondary containment.</br>AEGTS 'B' was declared operable at 0845 hours. Early indication is that a discharge damper in the AEGTS 'A' train had not operated properly. This condition was determined to be reportable in accordance with 10 CFR 50.72(b)(3)(V)(C) and (D), as condition that could have prevented the safety function of structures or systems that are needed to: (C) Control the release of radioactive material; or (D) Mitigate the Consequences of an accident.</br>The licensee notified the NRC Resident Inspector.ensee notified the NRC Resident Inspector.  +
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 43860 +, ENS 43860 +, ENS 43860 +, ENS 43860 +, ENS 43860 +, ENS 43860 +, ENS 43860 +, ENS 43860 +, ENS 43860 +, ENS 43860 +, ENS 43860 +, ENS 43860 +, ENS 43860 +, ENS 43860 +  and ENS 43860 +
Hours
0.00955 d (0.229 hours, 0.00136 weeks, 3.139125e-4 months)  +, 0.00964 d (0.231 hours, 0.00138 weeks, 3.169565e-4 months)  +  and 0.00978 d (0.235 hours, 0.0014 weeks, 3.215225e-4 months)  +
Initial power
100  +
Initial reactor mode
Power Operation +
Last update date
00:00:00, 21 December 2007  +
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>.
02:15:22, 2 March 2018  +
NRC officer
Mark Abramovitz +
Notification date
12:31:00, 21 December 2007  +
Originated by
Robert Kidder +
Reactor critical
true  +
Reactor scram
false  +
Reactor type
GE-6 +
Region
NRC Region 3 +
Reporting criterion
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident +  and 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material +
Reporting time
-0.0375 d (-0.9 hours, -0.00536 weeks, -0.00123 months)  +
Site
Perry +
Start date
13:25:00, 21 December 2007  +
State
Ohio +
System
Secondary containment +
Title
Secondary Containment Bypassed for Short Period  +
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/2007/20071224en.html#en43860  +
Unit
1  +
 
Retrieved from "https://kanterella.com/Special:Browse/:ENS-2043860"