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The Unit 1 DC Cook Nuclear Plant (CNP) Ann … The Unit 1 DC Cook Nuclear Plant (CNP) Annunciator System failed on Thursday, March 30, 2017 at 0255 (EDT). The failure resulted in a complete loss of all alarm function of the Annunciator System in the Unit 1 Control Room. Unit 2 was unaffected by this failure. At 0310 (EDT), an Unusual Event (UE) was declared due to System Malfunction S-6, Loss of Alarms or Indication, due to an unplanned loss of safety system annunciators and/or indications in the Control Room for greater than 15 minutes.</br>The Unit 1 PPC (Plant Process Computer) and ERDS (Emergency Response Data System) remain functional and available.</br>This notification is being made in accordance with 10 CFR 50.72(a)(1)(i) due to the declaration of an Emergency Classification specified in the licensee's approved Emergency Plan.</br>The licensee has notified the NRC Resident Inspector, the State and local agencies.</br>Notified DHS SWO, FEMA Ops Center, DHS NICC. Notified FEMA National Watch and Nuclear SSA via E-mail.</br>* * * UPDATE FROM MAX MILLER TO DONG PARK AT 0821 EDT ON 3/30/2017 * * *</br>Unit 1 DC Cook Nuclear Plant Annunciator System has been returned to functional. Unusual Event Classification was terminated at 0817 EDT on 3/30/17.</br>The NRC Resident Inspector will be notified. </br>Notified R3DO (Cameron), NRR EO (Miller), and IRD (Grant). Notified DHS SWO, FEMA Ops Center, DHS NICC. Notified FEMA National Watch and Nuclear SSA via E-mail.National Watch and Nuclear SSA via E-mail. +
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07:10:00, 30 March 2017 +
The Unit 1 DC Cook Nuclear Plant (CNP) Ann … The Unit 1 DC Cook Nuclear Plant (CNP) Annunciator System failed on Thursday, March 30, 2017 at 0255 (EDT). The failure resulted in a complete loss of all alarm function of the Annunciator System in the Unit 1 Control Room. Unit 2 was unaffected by this failure. At 0310 (EDT), an Unusual Event (UE) was declared due to System Malfunction S-6, Loss of Alarms or Indication, due to an unplanned loss of safety system annunciators and/or indications in the Control Room for greater than 15 minutes.</br>The Unit 1 PPC (Plant Process Computer) and ERDS (Emergency Response Data System) remain functional and available.</br>This notification is being made in accordance with 10 CFR 50.72(a)(1)(i) due to the declaration of an Emergency Classification specified in the licensee's approved Emergency Plan.</br>The licensee has notified the NRC Resident Inspector, the State and local agencies.</br>Notified DHS SWO, FEMA Ops Center, DHS NICC. Notified FEMA National Watch and Nuclear SSA via E-mail.</br>* * * UPDATE FROM MAX MILLER TO DONG PARK AT 0821 EDT ON 3/30/2017 * * *</br>Unit 1 DC Cook Nuclear Plant Annunciator System has been returned to functional. Unusual Event Classification was terminated at 0817 EDT on 3/30/17.</br>The NRC Resident Inspector will be notified. </br>Notified R3DO (Cameron), NRR EO (Miller), and IRD (Grant). Notified DHS SWO, FEMA Ops Center, DHS NICC. Notified FEMA National Watch and Nuclear SSA via E-mail.National Watch and Nuclear SSA via E-mail. +
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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>.
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