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This report is being made in accordance wi … This report is being made in accordance with 10CFR50.72(b)(3)(xiii). Calvert Cliffs Nuclear Power Plant will perform planned maintenance on the Unit 2 Plant Process Computer (PPC) and associated network infrastructure on February 06, 2013. The maintenance will remove the Unit 2 PPC for a planned duration of 12 hours and will render the Unit 2 SPDS out of service for this timeframe. Once the maintenance starts, the effected equipment and functions, including SPDS, can be returned to service within five minutes, if required.</br>Should an emergency be declared during this period, the control room will continue to have the capability to retrieve plant data inputs to assess plant conditions and perform core damage assessment at all times. Control room emergency response personnel will use emergency response procedures to disseminate plant parameter data points to the affected Emergency Response Facilities until the U-2 PPC is restored. MIDAS (Meteorological Data) and Unit 2 ERDS (Emergency Response Data System) data transmission will remain functional during the maintenance window. All work associated with this plant data network software installation will be performed in an expeditious manner consistent with the goal of minimizing unavailability of the systems listed above. Back-out criteria has been identified as part of the work package. A test of all systems will be performed at the completion of the upgrade.</br>The licensee notified the NRC Resident Inspector.</br>* * * UPDATE AT 1713 EST ON 2/6/2013 FROM AMY CORDNER TO MARK ABRAMOVITZ * * *</br>The plant process computer was returned to service at 1700 EST.</br>The licensee will notify the NRC Resident Inspector.</br>Notified the R1DO (Powell).ent Inspector.
Notified the R1DO (Powell). +
14:00:00, 6 February 2013 +
48,720 +
11:21:00, 6 February 2013 +
14:00:00, 6 February 2013 +
This report is being made in accordance wi … This report is being made in accordance with 10CFR50.72(b)(3)(xiii). Calvert Cliffs Nuclear Power Plant will perform planned maintenance on the Unit 2 Plant Process Computer (PPC) and associated network infrastructure on February 06, 2013. The maintenance will remove the Unit 2 PPC for a planned duration of 12 hours and will render the Unit 2 SPDS out of service for this timeframe. Once the maintenance starts, the effected equipment and functions, including SPDS, can be returned to service within five minutes, if required.</br>Should an emergency be declared during this period, the control room will continue to have the capability to retrieve plant data inputs to assess plant conditions and perform core damage assessment at all times. Control room emergency response personnel will use emergency response procedures to disseminate plant parameter data points to the affected Emergency Response Facilities until the U-2 PPC is restored. MIDAS (Meteorological Data) and Unit 2 ERDS (Emergency Response Data System) data transmission will remain functional during the maintenance window. All work associated with this plant data network software installation will be performed in an expeditious manner consistent with the goal of minimizing unavailability of the systems listed above. Back-out criteria has been identified as part of the work package. A test of all systems will be performed at the completion of the upgrade.</br>The licensee notified the NRC Resident Inspector.</br>* * * UPDATE AT 1713 EST ON 2/6/2013 FROM AMY CORDNER TO MARK ABRAMOVITZ * * *</br>The plant process computer was returned to service at 1700 EST.</br>The licensee will notify the NRC Resident Inspector.</br>Notified the R1DO (Powell).ent Inspector.
Notified the R1DO (Powell). +
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00:00:00, 6 February 2013 +
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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11:21:00, 6 February 2013 +
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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.