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The inspectors identified an unresolved it … The inspectors identified an unresolved item (URl)associated with the failure to perform inservice testing (lST) for the pressurizer PORVs in accordance with American Society of Mechanical Engineers (ASME) Code for the Operation and Maintenance of Nuclear Power Plants. In 2000, Constellation changed the preventive maintenance requirement for the PORVs at both units such that rather than being removed and overhauled every six years, the valves were removed and overhauled every cycle (every two years). ln 2004, Constellation began to functionally test the PORVs to meet their TS and IST surveillance requirements at the end of a unit\'s operating cycle in accordance with procedure STP-M- 673,\'PORV Response Time Test. This testing was performed on valves which were subsequently replaced by refurbished spares. This was done to reduce the number of actuations the inservice valves were subjected to at a pressure below the normal operating pressure. OE indicated that by testing the PORVs at the lower pressures prescribed by STP-M-673, the potential for seat leakage was increased due to insufficient pressure to fully reseat the main valve disc. The Inspectors\' review of this practice identified that testing established in 2004 was not a proper interpretation of the requirements of the ASME Code. Specifically, ISTC-3310 requires a valve to be stroke time tested to verify that the reference value was still valid, or to set a new reference value following any maintenance which could affect the performance of the valve. The mounting of the solenoid and the setting of the plunger on site may affect the performance of the PORV being installed. IST runs were not performed following replacement of both valves during refueling outages since 2004 for both units (1-ERV-402,1-ERV-404, 2-ERV-402, and 2-ERV-404)to verify or reestablish the valves\' reference values. In response to this inspector-identified concern, Constellation initiated CR-2010-01 1886. This item is unresolved pending inspector review of Constellation\'s completed evaluation and CAs for this issue, and a determination if the performance deficiency associated with this issue is more than minor. (URl 05000317131812010005-05, Failure to Perform Testing of PORVs in Accordance with ASME Code).ng of PORVs in Accordance with ASME Code).
23:59:59, 30 September 2010 +
23:59:59, 30 September 2010 +
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>.
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Ronald Rolph +, J Hawkins +, G Hunegs +, S Ibarrola +, Silas Kennedy +, D Lawver +, Stephen Hammann +, Cherie Crisden + and M Osborn +
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>.
00:40:56, 21 February 2018 +
Ronald Rolph +, J Hawkins +, G Hunegs +, S Ibarrola +, Silas Kennedy +, D Lawver +, Stephen Hammann +, Cherie Crisden + and M Osborn +
23:59:59, 30 September 2010 +