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<p class="MsoNormal"><span style="color:#1F497D">Hi Scott <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I understand you have a list of the Serial numbers for the end groups that we originally cut off – If you have this can you please send it to us
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">We need to try and figure out what the correct serial number was for this end group before it was scratched out (if possible )
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Unfortunately it seems that the serial numbers were not available in the drop downs original traveler when it was first inspected back in November , subsequently it seems that the SN was scratched out on the
part – so as a result we may have lost traceability on what end group ended up in this cavity
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">At this point we can only do our best to try and figure out by process of elimination which end group was used
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I will come by in the morning – Thanks for your help
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Anne <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">PS – for some reason this email was sent to my home address – for anyone responding please check that it’s going to my JLAB address
<a href="mailto:mcewen@jlab.org">mcewen@jlab.org</a> so I will see any correspondence
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>From:</b> Anne McEwen <anne.mcewen@outlook.com> <br>
<b>Sent:</b> Wednesday, February 10, 2021 6:21 PM<br>
<b>To:</b> E. Anne McEwen <mcewen@jlab.org><br>
<b>Subject:</b> [EXTERNAL] FW: C75-RI-011<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b>From:</b> Gianluigi Ciovati <<a href="mailto:gciovati@jlab.org">gciovati@jlab.org</a>>
<br>
<b>Sent:</b> Wednesday, February 10, 2021 11:21 AM<br>
<b>To:</b> Scott Williams <<a href="mailto:scott@jlab.org">scott@jlab.org</a>>; Anne McEwen <<a href="mailto:anne.mcewen@outlook.com">anne.mcewen@outlook.com</a>>; Jacob Harris <<a href="mailto:jharris@jlab.org">jharris@jlab.org</a>>; pansophy <<a href="mailto:pansophy@jlab.org">pansophy@jlab.org</a>>;
George DeKerlegand <<a href="mailto:georged@jlab.org">georged@jlab.org</a>>; Earl Mosby <<a href="mailto:mosby@jlab.org">mosby@jlab.org</a>><br>
<b>Cc:</b> Kurt Macha <<a href="mailto:macha@jlab.org">macha@jlab.org</a>>; Tony Reilly <<a href="mailto:areilly@jlab.org">areilly@jlab.org</a>><br>
<b>Subject:</b> Fw: C75-RI-011<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Hi all,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">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:<o:p></o:p></span></p>
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<li class="MsoNormal" style="color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l1 level1 lfo3">
<span style="font-size:12.0pt">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<o:p></o:p></span></li><li class="MsoNormal" style="color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l1 level1 lfo3">
<span style="font-size:12.0pt">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<o:p></o:p></span></li><li class="MsoNormal" style="color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l1 level1 lfo3">
<span style="font-size:12.0pt">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.<o:p></o:p></span></li><li class="MsoNormal" style="color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l1 level1 lfo3">
<span style="font-size:12.0pt">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<o:p></o:p></span></li></ul>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">How did the end-groups got the SNs scratched out and re-serialized? How was it decided?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">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.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Best regards,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Gigi<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="color:black">From:</span></b><span style="color:black"> Ashley Anderson Mitchell <<a href="mailto:ashleya@jlab.org">ashleya@jlab.org</a>><br>
<b>Sent:</b> Wednesday, February 10, 2021 10:35 AM<br>
<b>To:</b> Gianluigi Ciovati <<a href="mailto:gciovati@jlab.org">gciovati@jlab.org</a>>; Kurt Macha <<a href="mailto:macha@jlab.org">macha@jlab.org</a>><br>
<b>Subject:</b> Re: C75-RI-011</span> <o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Gigi, <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"> 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<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">As for the SN#s, some are scratched out. <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"> FPC says FLG#3 and MM#2 (and cavity number in two places)<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">HOM says MM 4 <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><img border="0" width="2000" height="1500" style="width:20.8333in;height:15.625in" id="x_id-C347407C-036B-451D-96F3-1D8FB0DAF1B2" src="cid:C347407C-036B-451D-96F3-1D8FB0DAF1B2" alt="Image.jpeg"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><img border="0" width="1500" height="2000" style="width:15.625in;height:20.8333in" id="x_id-F8BEE661-2D66-4C71-AEAB-94826B0592E5" src="cid:F8BEE661-2D66-4C71-AEAB-94826B0592E5" alt="Image.jpeg"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><img border="0" width="1500" height="2000" style="width:15.625in;height:20.8333in" id="x_id-AA5FFDB6-0230-469F-9705-A8163C8688F5" src="cid:AA5FFDB6-0230-469F-9705-A8163C8688F5" alt="Image.jpeg"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="color:black">From:</span></b><span style="color:black"> Gianluigi Ciovati <<a href="mailto:gciovati@jlab.org">gciovati@jlab.org</a>><br>
<b>Sent:</b> Wednesday, February 10, 2021 9:19 AM<br>
<b>To:</b> Ashley Anderson Mitchell <<a href="mailto:ashleya@jlab.org">ashleya@jlab.org</a>>; Kurt Macha <<a href="mailto:macha@jlab.org">macha@jlab.org</a>><br>
<b>Subject:</b> Re: C75-RI-011</span> <o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Hi Ashley,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">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?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Thanks,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Gigi<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="color:black">From:</span></b><span style="color:black"> Ashley Anderson Mitchell <<a href="mailto:ashleya@jlab.org">ashleya@jlab.org</a>><br>
<b>Sent:</b> Wednesday, February 10, 2021 8:58 AM<br>
<b>To:</b> Gianluigi Ciovati <<a href="mailto:gciovati@jlab.org">gciovati@jlab.org</a>>; Kurt Macha <<a href="mailto:macha@jlab.org">macha@jlab.org</a>><br>
<b>Subject:</b> C75-RI-011</span> <o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">Gigi, <o:p></o:p></p>
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<p class="MsoNormal">C75-RI-011‘a processing traveler ends with us at the USC and I don’t see it on the schedule in the future. <o:p></o:p></p>
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<p class="MsoNormal">I think it should need tuning, CMM and/or lapping next? <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Thanks, <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">- Ashley Mitchell<o:p></o:p></p>
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