10 CFR 50, Appendix B, Criterion XI, requires the licensee establish a test program to assure that all testing required to demonstrate that components will perform satisfactorily in service is identified and performed. Procedure SPP-6.3, Pre/Post-Maintenance Testing, Revision 2, implemented the required testing program and stated that postmaintenance testing was to assure that a new deficiency was not created by maintenance. Contrary to this, packing adjustments made to valve 2-VLV-62-527 in 2004 physically bound the valve, and post-maintenance testing did not verify that it would operate within the time required by licensee Procedure
AOP-N.08, Appendix R Fire
Safe Shutdown. This finding was determined to be of very low safety significance (Green) because of the very low frequency of fires which would result in a spurious safety injection and disable operation of both pressurizer Power-Operated Relief Valves or block valves.
