U.S. ATLAS HL-LHC Upgrade Level 2 and Deputies-NSF only Management Mailing List

[Gustaaf Brooijmans <gusbroo AT nevis.columbia.edu>]

Thursday’s update:

-LAr is complete and fully approved

-We’re missing 6.6 and the revision to 6.6.3

-We’re missing 6.8.4

All the rest was already approved.

Best,

Gustaaf

> On Jun 19, 2024, at 11:23, Gustaaf Brooijmans <gusbroo AT nevis.columbia.edu> 
> wrote:
> 
> 
> Today’s update:
> 
> -6.4 and 6.4.2 are missing
> 
> -6.4.1: In general it looks good, but the sense "We have currently received 
> about 20% of the scheduled 50% of the total production for LAr” is a bit 
> strange.  Does it mean we were scheduled to have received 50% and we got 
> 20%?  Anyway, the VR needs to be submitted for me to approve it.
> 
> -6.6 is missing (check with Penka on authorization)
> 
> -6.6.3: "The positive cost variance stems from design issues with the sMDT 
> mezz card by MPI, resulting in some planned work not started. “ => delayed 
> work cannot lead to a cost variance, so I have re-opened this
> 
> -6.6.4 looks good now, thanks.  I have approved it.
> 
> -6.6.5 I have approved
> 
> -6.8.4 is missing
> 
> Best,
> 
> Gustaaf
> 
>> On Jun 18, 2024, at 14:59, Gustaaf Brooijmans <gusbroo AT nevis.columbia.edu> 
>> wrote:
>> 
>> 
>> Hello all,
>> 
>> A reminder that the May VRs are due soon.  Keep in mind that the May 
>> working schedule is our basis for the July review, so it’s crucial to 
>> fully understand the variances.  This will have to go into your slides.
>> 
>> Many are already posted (thanks!), here are some comments:
>> 
>> -6.4.3 looks good, I have approved it
>> 
>> -6.5.4: I don’t understand this: any pre-rebaselining variance would have 
>> been zeroed out, and in fact there is no variance at Columbia.  I have 
>> unlocked this.
>> 
>> -6.6.3: the SV report looks fine, but CV is missing, so I have unlocked 
>> this.
>> 
>> -6.6.4: "The schedule variance of $866k is mostly due to delays in the 
>> schedule. We are set to enter full production now, so are hit with a 
>> variance of roughly $720k.” This basically says there is a schedule 
>> variance because there is a schedule variance.  Please say something about 
>> the actual source.  (I guess it’s purchase of comonents…)  I have unlocked 
>> this.
>> 
>> -6.6.5: looks good but you forgot to submit.  (BTW, I think you meant 
>> “remainder” rather than “reminder”)
>> 
>> -6.8 looks good and I have approved.
>> -6.8.3: nice to see a $100k positive variance this month.  I approved the 
>> text.
>> 
>> Best,
>> 
>> Gustaaf
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