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At 2148 EDT, on April 10, 2012 the Unit 1 … At 2148 EDT, on April 10, 2012 the Unit 1 and Unit 2 Safety Parameter Display System (SPDS) and Emergency Response Data System (ERDS) were removed from service to support a planned maintenance outage on the 1A Engineered Safeguards System (ESS) Bus as part of the U1 17th Refueling and Inspection outage. The Bus Outage is expected to have a duration greater than 8 hours, but less than 72 hours. During this time, required control room hardwire indications will be available from the unaffected ESS buses. An update will be provided when SPDS/ERDS becomes available.</br>Since the Unit 1 and Unit 2 SPDS/ERDS computer system will be unavailable for greater than 8 hours, this is considered a Loss of Emergency Assessment Capability and reportable under 10 CFR50.72(b)(3)(xiii).</br>The licensee has notified the NRC Resident Inspector.</br>* * * UPDATE FROM RON FRY TO JOHN KNOKE AT 2313 EDT ON 04/14/12 * * *</br>As of 1800 hours EDT on 04/13/12, Unit 1 and Unit 2 ERDS and SPDS were restored to normal operation. Operation of these systems has been monitored since that time and operation has been determined to be reliable.</br>The licensee has not notified the NRC Resident Inspector. Notified the R1DO (Blake Welling)pector. Notified the R1DO (Blake Welling) +
01:48:00, 11 April 2012 +
47,820 +
01:18:00, 11 April 2012 +
01:48:00, 11 April 2012 +
At 2148 EDT, on April 10, 2012 the Unit 1 … At 2148 EDT, on April 10, 2012 the Unit 1 and Unit 2 Safety Parameter Display System (SPDS) and Emergency Response Data System (ERDS) were removed from service to support a planned maintenance outage on the 1A Engineered Safeguards System (ESS) Bus as part of the U1 17th Refueling and Inspection outage. The Bus Outage is expected to have a duration greater than 8 hours, but less than 72 hours. During this time, required control room hardwire indications will be available from the unaffected ESS buses. An update will be provided when SPDS/ERDS becomes available.</br>Since the Unit 1 and Unit 2 SPDS/ERDS computer system will be unavailable for greater than 8 hours, this is considered a Loss of Emergency Assessment Capability and reportable under 10 CFR50.72(b)(3)(xiii).</br>The licensee has notified the NRC Resident Inspector.</br>* * * UPDATE FROM RON FRY TO JOHN KNOKE AT 2313 EDT ON 04/14/12 * * *</br>As of 1800 hours EDT on 04/13/12, Unit 1 and Unit 2 ERDS and SPDS were restored to normal operation. Operation of these systems has been monitored since that time and operation has been determined to be reliable.</br>The licensee has not notified the NRC Resident Inspector. Notified the R1DO (Blake Welling)pector. Notified the R1DO (Blake Welling) +
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>.
00:00:00, 14 April 2012 +
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>.
02:04:23, 2 March 2018 +
01:18:00, 11 April 2012 +
John Knoke + and Blake Welling +
false +
-0.0208 d (-0.5 hours, -0.00298 weeks, -6.849e-4 months) +
01:48:00, 11 April 2012 +
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.