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ENS 45366
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Category
ENS Notification  and Power Reactor
CFR
10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release +  and 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness +
Current power
100  +
Current reactor mode
Power Operation +
Description
At 0130 the 800 MHZ radio (control) system … At 0130 the 800 MHZ radio (control) system failed to the 'fail soft' mode rendering all (73) emergency notification sirens inoperable. At 0305 courtesy call notifications were made to the county control centers (Calvert, Dorchester, St. Mary's and MEMA).</br>The backup system was placed in service and 800 MHZ radio and ENS sirens restored to operable status at 0526 9/20/09." </br>Maintenance work to restore the primary system will occur today.</br>The licensee notified the NRC Resident Inspector.ensee notified the NRC Resident Inspector.  +
Discovered date
05:30:00, 20 September 2009  +
ENS id number
45,366  +
Emergency class
Non Emergency +
Entered date
05:50:00, 20 September 2009  +
Event date
05:30:00, 20 September 2009  +
Event description
At 0130 the 800 MHZ radio (control) system … At 0130 the 800 MHZ radio (control) system failed to the 'fail soft' mode rendering all (73) emergency notification sirens inoperable. At 0305 courtesy call notifications were made to the county control centers (Calvert, Dorchester, St. Mary's and MEMA).</br>The backup system was placed in service and 800 MHZ radio and ENS sirens restored to operable status at 0526 9/20/09." </br>Maintenance work to restore the primary system will occur today.</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 45366 +, ENS 45366 +, ENS 45366 +, ENS 45366 +, ENS 45366 +, ENS 45366 +, ENS 45366 +, ENS 45366 +, ENS 45366 +, ENS 45366 +, ENS 45366 +, ENS 45366 +, ENS 45366 +, ENS 45366 +  and ENS 45366 +
Initial power
100  +
Initial reactor mode
Power Operation +
Last update date
00:00:00, 20 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>.
22:31:40, 24 September 2017  +
NRC officer
Donald Norwood +
Notification date
05:50:00, 20 September 2009  +
Originated by
Robert Martin +
Reactor critical
true  +
Reactor scram
false  +
Reactor type
CE +
Region
NRC Region 1 +
Reporting criterion
10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release +  and 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness +
Reporting time
0.0138 d (0.33 hours, 0.00196 weeks, 4.52034e-4 months)  +
Site
Calvert Cliffs +
Start date
05:30:00, 20 September 2009  +
State
Maryland +
Title
Emergency Sirens Inoperable  +
Topic
Siren +
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/2009/20090921en.html#en45366  +
Unit
1  +  and 2  +
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