1. JACTest Monitoring Center Test Monitoring Center Report to the Mack Test Surveillance Panel June 17, 2002 Montreal

2. JACTest Monitoring Center T-8/T-8E Reference Oil Testing Summary Test Activity –Moderately Low Currently Calibrated –3 Labs –7 Stands Current Alarms –None

3. JACTest Monitoring Center T-8/T-8E Reference Oil Testing Summary Severity Trends (through April 2002 period) –VI38: 0.41 cSt mild –RV48: 0.12 rv units mild –RV2: no severity trend Precision –All three parameters Within historical levels Improving compared to recent periods

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7. JACTest Monitoring Center T-9 Reference Oil Testing Summary Test Activity –Very Low Currently Calibrated –1 Lab –2 Stands Current Alarms –None

8. JACTest Monitoring Center T-9 Reference Oil Testing Summary Severity Trends (since January 1, 2000) –ALW: 2.1 microns mild –Delta PB: 5 ppm mild –TRWL: 14 mg severe Precision –No estimates or comparisons available due to low activity

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12. JACTest Monitoring Center T-10 Reference Oil Testing Summary Test Activity –Moderately Low Currently Calibrated –5 Labs –12 Stands Current Alarms –CLW: Severity, Mild Direction –TRWL: Severity, Mild Direction

13. JACTest Monitoring Center T-10 Reference Oil Testing Summary Severity Trends (since March 2002) –CLW: 3.8 microns mild –TRWL: 28 mg mild Precision –PB, PB2, OC: show improvement –CLW, TRWL: show degradation

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19. JACTest Monitoring Center T-10A Reference Oil Testing Summary Alarms –none Severity Trends (since January 1, 2002) –MRV: 151 cP severe

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21. JACTest Monitoring Center T-10 Liner Wear and Top Ring Weight Loss Severity Issues –Noted in May during review of reference data for target update –Investigated by TMC, Mack, and TEI

22. JACTest Monitoring Center T-10 Severity Investigation Issues Examined –Lab influences –Hardware batches –Reference oils –Liner measurements –Differences in operating parameters

23. JACTest Monitoring Center T-10 Severity Investigation General Observations –Hardware batches Change in batch from D to F Possible change in liner supplier, Mack to confirm Difference in liner surface finish significant, but no impact found on results Batch F hardware has been run at Labs A and G only T-9 results on same hardware do not confirm T-10 results

24. JACTest Monitoring Center T-10 Severity Investigation General Observations –Liner measurements Labs A and G switch from Talysurf to PDI Differences seen in results –Lab A: 32.3 Talysurf 29.6 PDI –Lab G: 34.4 Talysurf 25.9 PDI Lab G switch coincides with batch F Round robin at same time shows good agreement in measurements throughout industry

25. JACTest Monitoring Center T-10 Severity Investigation General Observations –Differences in operating parameters Blowby –Lab G extremely low compared to industry –Unknown if difference is real or measurement problem –Potential impacts?? Humidity –Lab D extremely high compared to industry –Unknown if difference is real or measurement problem –Potential impacts??

26. JACTest Monitoring Center T-10 Severity Investigation Cylinder Liner Wear –Lab Influence Lab G mild –Hardware Batch No effect found –Reference Oil No effect found

27. JACTest Monitoring Center T-10 Severity Investigation Cylinder Liner Wear –Liner Measurements Effect not likely Next round robin to confirm –Operating Differences Effect unknown but not likely –Differences existed prior to severity changes

28. JACTest Monitoring Center T-10 Severity Investigation Cylinder Liner Wear –Conclusion Most likely cause of mild shift is Lab G

29. JACTest Monitoring Center T-10 Severity Investigation Top Ring Weight Loss –Lab Influence Labs A and G mild –Hardware Batch Labs A and G: Batch F Labs B, D, and F: Batch D Batch F results are mild –Reference Oil No effect found

30. JACTest Monitoring Center T-10 Severity Investigation Top Ring Weight Loss –Operating Differences Effect unknown but not likely –Differences existed prior to severity changes

31. JACTest Monitoring Center T-10 Severity Investigation Top Ring Weight Loss –Conclusions Hardware batch may be driving mild shift Lab effects unknown

32. JACTest Monitoring Center T-10 Severity Investigation Proposed Actions –Update Test Targets 12 or 13 tests? Use pooled standard deviation for CLW to account for lab differences –Complications: Top Ring Weight Loss Batch F run only at two labs Batch G to be introduced shortly

33. JACTest Monitoring Center T-10 Targets and Proposed Targets CLWTRWLOCPB EOTPB 250-300 Current 32.5 / 3.4134 / 2649.6 / 10.93.1298 / 0.28478.2 / 5.2 820-2 13 tests 29.7 / 3.9110 / 2150.6 / 6.63.1529 / 0.23888.1 / 3.3 820-2 12 tests 30.4 / 3.4111 / 2150.6 / 6.93.1899 / 0.20678.2 / 3.3

34. JACTest Monitoring Center Items for Surveillance Panel Consideration Liner Wear Measurement Procedure –Currently maintained in T-9 standard –Options Keep in T-9. Update via Information Letter. Remove from T-9. Change to referenced document, maintained at TMC. Both T-9 and T-10 updated via Information Letter.

35. JACTest Monitoring Center Items for Surveillance Panel Consideration T-10 Ballot – Information Letter 02-1 –Comment regarding Section 8.4.1 on servicing of injectors Currently: Servicing of injectors is recommended every 300 h. Resetting of injector opening pressure is recommended if pressure is outside the specification Suggested: Inspection of injectors, and cleaning if necessary, is required every 300 h. Resetting of injector opening pressure is required if pressure is outside the specification

36. JACTest Monitoring Center Items for Surveillance Panel Consideration T-10 Quality Index –Operational Plots / Capability Study –Review with lab engineers to establish thresholds –Proposal to be developed by TMC for panel consideration