From:	Jeff Clark [jac@atc-erc.org]
Sent:	Monday, September 15, 2008 1:32 PM
To:	'Shank Greg'; 'Buck, Ron'; 'Budd, Armel'; 'Campbell, Bob'; 'Carabell, Kevin (kedc) (KCarabell)'; 'Carter, Brad'; Jeff Clark; 'Conti, Riccardo'; 'Fetterman, Pat'; 'Goshorn Kenneth'; 'Gutzwiller, Jim'; 'Haeglin, John (Intertek)'; 'Hamilton, Jesse'; 'Johnson, Ryan'; 'Kennedy, Steve'; 'Matasic, Jim'; 'McGeehan, James'; 'Moritz, Jim  (Intertek)'; 'Richards, Scott M. (srichards) (SwRI)'; 'Rutherford, Jim (JARU)'; 'Cooper, Mark (MAWC)'
Cc:	'Menasco, Michael (ENAS)'; 'Sztenderowicz, Mark'; 'Van Dam, Wim (WVDA)'; 'Weber, Ben'
Subject:	Minutes of September 12 2008 Mack SP Teleconference

Attachments:	Revisit Mack T-12 Cylinder Profiles Part 2.ppt; MCK-511 - Pin Gage.pdf; L-38039, MCK511 Ring Hardness.xls; MCK511 Insp.(Lahrman).xls; Use of Split Ring Tests in Mack T12 (Sep 12 2008).doc
Attendance - Mark Cooper, Jeff Clark, Jim Rutherford, Jim Moritz, Bob Campbell, Ron Buck, Ryan Johnson, Greg Shank, Jim Matasic, Jess Hamilton, Jim Gutzwiller, Ken Goshorn, Scott Richards

T-12 Reference Status Update:
Three labs have requested reference oils to run on the new ring batch. Intertek was on test, Lubrizol's is expected to start early the week of the 15th and it was believed that ExxonMobil's test would be starting soon, though that was uncertain as they did not have a representative on the call.

Candidate Data Request:
Mark Cooper has forwarded to PAPTG the request to use candidate split-test data for the correction factor. They will be discussing it next week.

Old Ring Batch Availability:
Ron Buck informed the panel that two sets of old rings are available.

Ring Supplier Report (three attachments):
It was stated that the dimensional measurements between the ring batches looked pretty much the same.

Split Test Proposal (two attachments):
The group reviewed  Jim Rutherford's analysis (note, the two attachments combined define the proposal). Jim stated that the wear profiles may need to be updated regardless of whether or not split tests go forward. It was suggested that we review the wear profiles once we have 5 tests on the new ring batch. Jim's analysis shows that if split tests are run, the CLW would be adjusted by 0.09 and the TRWL by 3.57 (+ or - to be determined by which set of cylinders). Jim Matasic stated that he reviewed internal candidate data and he felt the adjustment values were in the ballpark on an overall average basis, but due to the inherent test-by-test variability, he was very uncomfortable with the risk in applying to an individual result to determine pass/fail.

After much further discussion, a vote was taken to accept the proposal on its technical merits alone (without setting an implementation date or determining if split tests would be mandatory). The initial vote was 5 in favor, 1 against, and 3 waives. Jeff Clark mentioned that when/if the time comes to go forward this would constitute an Information Letter, which cannot be issued with a negative attached. Jim Matasic indicated that he would change his negative to a waive. This left the final count at 5-0-4. Greg Shank had to leave the meeting at this point and asked that we resume this discussion in a week's time, in the hopes of finalizing details for implementing split tests.

Parts Update:
Ron Buck stated that the new ring batch has made its way into T-11 kits (starting with T11-10313-P). After some discussion, it was asked if TEI could switch the parts batch nomenclature such that the T-11 and T-12 show the same batch; after more discussion, it was asked if the T-11 and T-12 could be put in the same numbering sequence. Ron stated that he will do that and that he will work with the labs on getting new numbers for the T-11 parts that are already at the labs.

There was further discussion concerning high oil consumption in the T-11, on both old and new parts. No actions arose of the discussion and the meeting adjourned.

Please let me know of any corrections.
Best Regards,

Jeff Clark
Manager
ATC European Registration Centre
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412-848-8843 (cell)
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