Browse wiki
Jump to navigation
Jump to search
During the review of LER 05000354/2018-003 … During the review of LER 05000354/2018-003-00 and -01, Feedwater Isolation Valve Leakage Exceeded Technical Specification Limit, the inspectors identified a condition prohibited by TS. Specifically, TS 3.6.1.2.d requires that Primary Containment Leakage rates shall be limited to a combined leakage rate of less than or equal to 10 gpm for all containment isolation valves which form the boundary for the long-term seal of the feedwater lines, when tested at 1.10 Pa (1.1 times the calculated peak containment internal pressure related to the design basis accident) or 55.7 psig. TS surveillance requirement (SR) 4.6.1.2.g states that these valves be tested at least once per 18 months. Contrary to this requirement, on April 18, 2018, during the TS required SR for LLRT of the F032B, PSEG was unable to achieve the required test pressure and could not determine a leakage rate.Screening: The inspectors evaluated the issue above in accordance with the guidance in the NRCs Enforcement Policy, IMC 0612, Appendix B, Issue Screening, and Appendix E, Examples of Minor Issues, and determined the issue was a minor violation because, although PSEG did not successfully complete the TS required SR because they could not attain the required test pressure, there were no actual safety consequences. Specifically, PSEGs technical evaluation (70200206-0085) estimated the leak rate through the F032B to be approximately 3 gpm, and determined that the potential leakage through the F032B would not have posed a challenge to its ability to establish and maintain the required feedwater seal for 30 days post-LOCA. Enforcement: PSEG has taken actions to restore compliance by repairing and successfully testing the valve, and revising their LLRT procedures to: 1) update administrative limits and actions that are required when limits are exceeded; and, 2) include specify the exact size and length of tubing required for the testing. This inability to comply with TS 3.6.1.2.d constituted a minor violation that is not subject to enforcement action in accordance with the NRCs Enforcement Policy.cordance with the NRCs Enforcement Policy.
23:59:59, 30 September 2018 +
23:59:59, 30 September 2018 +
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>.
05000354/FIN-2018003-05 +, 05000354/FIN-2018003-05 +, 05000354/FIN-2018003-05 +, 05000354/FIN-2018003-05 +, 05000354/FIN-2018003-05 +, 05000354/FIN-2018003-05 +, 05000354/FIN-2018003-05 +, 05000354/FIN-2018003-05 +, 05000354/FIN-2018003-05 +, 05000354/FIN-2018003-05 +, 05000354/FIN-2018003-05 +, 05000354/FIN-2018003-05 +, 05000354/FIN-2018003-05 +, 05000354/FIN-2018003-05 +, 05000354/FIN-2018003-05 +, 05000354/FIN-2018003-05 +, 05000354/FIN-2018003-05 +, 05000354/FIN-2018003-05 +, 05000354/FIN-2018003-05 +, 05000354/FIN-2018003-05 +, 05000354/FIN-2018003-05 +, 05000354/FIN-2018003-05 +, 05000354/FIN-2018003-05 +, 05000354/FIN-2018003-05 + and 05000354/FIN-2018003-05 +
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>.
05:29:47, 4 December 2018 +
23:59:59, 30 September 2018 +