Configuration Management Health Monitoring at Bruce Power Hans
Configuration Management Health Monitoring at Bruce Power Hans Braul Bruce Power June 11 -14, 2006 Richmond, VA 2006 CMBG Conference
In the Beginning…. • CM Assessment (2004) recommended: – Identify and reduce backlogs – Integrate data sources – Document high level CM Plan (program) – Increase CM awareness – Develop CM Performance Indicators vs. CM Program – Monitor CM Health vs. CM Program 2006 CMBG Conference
Step One: What Is Our Backlog? ? ? • First question: which backlogs? Why choose them? • Needed a comprehensive model on which to base our backlog assessment • We chose to use CM Conformance Restoration Diagram • The backlogs we measure were then systematically linked to the model 2006 CMBG Conference
CM Conformance Restoration Diagram 2006 CMBG Conference
CM Conformance Restoration Diagram (cont’d) 2006 CMBG Conference
CM Conformance Restoration Diagram (cont’d) 2006 CMBG Conference
The Truth. . . 2006 CMBG Conference
. . . The Whole Truth. . . 2006 CMBG Conference
. . . And Nothing But the Truth. 2006 CMBG Conference
Health Report • Based on Simplified CM Conformance Restoration Diagram: 2006 CMBG Conference
CM 001, Problem/Improvement Identification # Indicator A Percentage of Total SCRs that are CMRelated B MFA-CMI SCRs Q 4 Targe t Q 1 Q 2 Q 3 Q 4 NA 8. 20 % 3. 68 % 8. 39 % 14. 8 % Pre-screening of SCRs has resulted in more events being categorized as CM related. Significance of trend cannot be defined at this time 65 The number of events categorized as CMI has increased significantly as a result of pre-screening of SCRs by Design Support staff. Significance of trend cannot be defined at this time NA Trend NA NA 28 Status Summary Total DCNs in Design 628 682 660 681 740 Rate of addition of new modifications work continues to exceed the rate of completion DCNs in Design %>12 months old 37. 9 42. 2 44. 1 43. 5 47. 3 Many DCNs in Design stage are not active and require to be cancelled D Corrective Maint. Backlogs 245 274 308 289 354 Increasing trend E Normal Maintenance Backlogs 4594 5005 5095 5325 5257 Increasing trend F BMU Holds 360 409 402 361 407 C Increasing Backlog 2006 CMBG Conference
CM 002, Design Requirements Changes # Indicator A MFA-DM SCRs Q 4 Target N/A Q 1 17 Q 2 11 Q 3 Q 4 Status Summary Trend 14 Significance of Increased focus on identifying Design trend cannot be 65 Management related SCRs. defined at this See Appendix B for examples. time 2006 CMBG Conference
CM 003, Physical Configuration Changes Q 4 Targe t Q 1 Q 2 Q 3 Q 4 Status Summary NA 43 20 23 83 See Appendix C for examples. Total DCNs in Working 1123 1212 1261 1232 1225 Results are < 10% of Q 4 Target. End of 2006 Target is 861 DCNs in Working %>12 months old 63. 6 70 66 68 68 Results are < 10% of Q 4 Target and the same as prior month results 69 70 67 67 65 Results are +/- 5% of Q 4 Target. # Indicator A MFA-Status Control (SC) SCRs Trend Significance of trend not defined at this time B TMODS in Effect C TMODs %>6 months 50. 5 55 51 52 58 Results are > 10% of Q 4 Target D Legacy Jumpers Bruce A 544 5793 529 494 475 Results are > 10% better than Q 4 Target E Legacy ECNs 1812 2079 2078 2075 A project to disposition all Bruce A legacy ECNs has been initiatied. Staffing limitations have hampered progress to date. 2006 CMBG Conference
CM 004, Facility Configuration Information (FCI) Changes # Indicator Q 4 Target Q 1 Q 2 Q 3 Q 4 Status Summary Trend MFA-Configura. A tion Control (CC) SCRs NA 54 53 62 Pre- screening of SCRs has resulted in more events being categorized as CM 129 related. See Appendix D for examples. B Total DCNs in Audit 624 659 624 604 509 75. 4 85 83. 5 80. 3 81 Results are within +/ - 5% of Q 4 Target. 1346 1347 1307 1138 Results are within +/ - 5% of Q 4 Target. DCNs in Audit %> 90 days DCRs in Pending 1193 C D Results are >10% of Q 4 WANO Target. Significance of trend cannot be defined at this time DCRs in Pending %>90 days 83. 2 94 92 90 88 Results are +/ - 5% of Q 4 Target. DCRs in Issued 827 882 889 865 982 Much improved over Q 3. Results exceed the Q 4 Target by >10%. DCRs in Issued >%12 Months 69. 3 78 72 66 59 Improved over Q 3 . Results exceed the Q 4 Target by >10%. Document Backlog Index 232 252 242 213 203 Results are >10% of Q 4 Target MEL Update E Backlog 679 611 135 Influx of Fuel Handling items increased MEL Backlog in Q 4 This is still a 451 900 reduction from a hi gh of 2080 MEL updates at the end of 2004. Bruce A &B Ops F Priority E&H PAR Backlog 296 325 353 310 230 Backlog continues to be reduced. 2006 CMBG Conference
Aggregate CM Index DCNs in Design 800 700 600 500 400 300 200 100 0 DCNs in Working 1400 1200 1000 800 600 400 200 0 DCNs in Design % >1 Year 50 45 40 35 30 25 20 15 10 5 0 1600 1400 1200 1000 800 600 400 200 0 DCNs in Working % > 1 Year 80 70 60 50 40 30 20 10 0 DCRs in Pending % >90 Days 100 90 80 70 60 50 40 30 20 10 0 TMODs In Effect % >6 Months 0 Legacy ECNs 5000 70. 0 WANO 1 50. 0 200 WANO 3150 100 0. 0 50 600 400 10 200 0 Document Backlog Index 20. 0 20 1000 WANO 2250 30. 0 800 2000 300 40. 0 1000 3000 Aggregate 1000 Score 500 Target 0 80. 0 DCRs in Issued % >1 Year 90 80 70 60 50 40 30 20 10 0 0 450 400 350 300 250 200 150 100 50 0 Normal Maintenance Backlog 6000 4000 1500 90. 0 1200 30 100 2000 70 50 200 100. 0 60 40 300 2500 Corrective Maintenance Backlog 400 350 300 250 200 150 100 50 0 400 Ap r Ju -05 O l-05 c Ja t-05 n Ap -06 r Ju -06 O l-06 c Ja t-06 Apn-0 r- 7 Ju 07 O l-07 c Ja t-07 Apn-0 r 8 Ju -08 O l-08 c Ja t-08 Apn-0 r-0 9 9 700 600 500 400 300 200 100 0 DCNs in Audit % > 90 days 90 80 70 60 50 40 30 20 10 0 Legacy Jumpers 500 Configuration Management Index 60. 0 DCNs in Audit 700 600 BMU Holds 400 350 300 250 200 150 100 50 0 1000 900 800 700 600 500 400 300 200 100 0 Ops E&H PARs MEL Backlog 2006 CMBG Conference
Summary • Program is built on CM Conformance Restoration Diagram • Provides a picture of what CM is, how processes fit to satisfy CM requirements • Health reporting and metrics align with the model • Alignment and buy-in of senior management and regulator are promoted by a comprehensive, consistent approach 2006 CMBG Conference
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