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Hi all,</div>
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there seems to have been a chain of unfortunate events that has prevented us to associate the end-groups serial numbers to the proper C75 cavity SN:</div>
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<li>During inspection of the cavities from which the end-groups were going to be cut, it was agreed to serialize the end-groups with "EG-cavity SN" and this is how they were recorded in the travelers C20-CAV-INSP-FPCEG and C20-CAV-INSP-HOMEG</li><li>When the cavities arrived from RI and were inspected by CMM group, those end-group SNs were not available in the drop-down menu for the traveler C75-CAV-INSP so the end-group SNs were left undefined in the cavity inspection traveler<br>
</li><li>After the end-groups SNs were added to the drop-down menus, I was informed yesterday that some of the EG SNs were "scratched out" and not visible.</li><li>This morning, I asked Ashley to check the thickness of the FPC flange on cavity C75-RI-011 and she sent me the pictures below which indeed show that the end-group SNs were scratched out and replaced by some other nomenclature</li></ul>
<div>How did the end-groups got the SNs scratched out and re-serialized? How was it decided?</div>
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<div>Thanks for your help and for a) suggesting a fix to the issue, b) fix the issue, c) suggest ways to prevent similar issue to occur again.</div>
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<div>Best regards,</div>
<div>Gigi<br>
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<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>From:</b> Ashley Anderson Mitchell <ashleya@jlab.org><br>
<b>Sent:</b> Wednesday, February 10, 2021 10:35 AM<br>
<b>To:</b> Gianluigi Ciovati <gciovati@jlab.org>; Kurt Macha <macha@jlab.org><br>
<b>Subject:</b> Re: C75-RI-011</font>
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Gigi, <br>
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I took thickness at the 4 corners so as not to scratch the flange sealing surface. Measurements are in inches: 0.3005, 0.3490, 0.3270, 0.3280</div>
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As for the SN#s, some are scratched out. </div>
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FPC says FLG#3 and MM#2 (and cavity number in two places)</div>
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HOM says MM 4 </div>
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<img id="x_id-C347407C-036B-451D-96F3-1D8FB0DAF1B2" alt="Image.jpeg" style="max-width: 100%; height: auto;" data-outlook-trace="F:1|T:1" src="cid:C347407C-036B-451D-96F3-1D8FB0DAF1B2"><br>
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<img id="x_id-F8BEE661-2D66-4C71-AEAB-94826B0592E5" alt="Image.jpeg" style="max-width: 100%; height: auto;" data-outlook-trace="F:1|T:1" src="cid:F8BEE661-2D66-4C71-AEAB-94826B0592E5"><br>
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<img id="x_id-AA5FFDB6-0230-469F-9705-A8163C8688F5" alt="Image.jpeg" style="max-width: 100%; height: auto;" data-outlook-trace="F:1|T:1" src="cid:AA5FFDB6-0230-469F-9705-A8163C8688F5"><br>
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<div id="x_divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>From:</b> Gianluigi Ciovati <gciovati@jlab.org><br>
<b>Sent:</b> Wednesday, February 10, 2021 9:19 AM<br>
<b>To:</b> Ashley Anderson Mitchell <ashleya@jlab.org>; Kurt Macha <macha@jlab.org><br>
<b>Subject:</b> Re: C75-RI-011</font>
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Hi Ashley,</div>
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yes, thank you, I'll update the traveler within the hour. Could you please do a quick caliper check of the thickness of the FPC flange? There seems to be some issues with the end-groups SNs being scratched out?</div>
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Thanks,</div>
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Gigi<br>
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<div id="x_x_divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>From:</b> Ashley Anderson Mitchell <ashleya@jlab.org><br>
<b>Sent:</b> Wednesday, February 10, 2021 8:58 AM<br>
<b>To:</b> Gianluigi Ciovati <gciovati@jlab.org>; Kurt Macha <macha@jlab.org><br>
<b>Subject:</b> C75-RI-011</font>
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<div>Gigi, </div>
<div dir="ltr">C75-RI-011‘a processing traveler ends with us at the USC and I don’t see it on the schedule in the future. </div>
<div dir="ltr">I think it should need tuning, CMM and/or lapping next? </div>
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<div dir="ltr">Thanks, </div>
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<div style="direction:ltr">- Ashley Mitchell</div>
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