Using CM to Maintain the Design Basis Facilitated By: Lloyd Hancock Rick Harris
Examples of Design Basis Requirements Miscues Vertical Assessment – identified unacceptable time critical action Safety injection system test lines – test procedures didn’t reflect design assumptions Vendor adding a platform over vessel during refueling – not evaluated properly
CM Program Elements Operations & Maintenance Procedures reviewed by Engineering Questioning Attitude to catch obscure assumptions Engineering review of questionable situations Identify subtle changes to plant that modify design
CM Program Elements Change in initial conditions analysis assumptions New employee orientation program should include CM Capturing tribal knowledge Transfer problem solving skills Reward questioning attitude Mentoring
CM Program Elements Highlighting in procedure when design requirement Make a cross reference of links Procedure commitment database 50.59 review team with participation of Procedure writers Vertical slice self assessments
CM Program Elements Assumptions in DBDs Procedure commitment database Oversight of non-station personnel Operating Experience Software programs
How To Assess Conformance Vertical slice Assessments, quick hitter INPO AFIs – OE Wait until NRC catches you Operating Events Corrective Action Program for trending
How To Assess Conformance Performance Indicators Surveys External Review Bring in new people – new blood