[Pansophy] SNS PPU Cold Mass 01 D3's SN and SNType

[Matt Marchlik]

Hi Gary,

D36 covers the tophat bellows cuff issue in general, so I wouldn't expect it to list the tophat bellows SN. We should expect to see this D3 repeated for the next 7 CM assemblies. May we keep the current SN of PPU-01 and use the correct one for the remaining 7 assemblies or can D3-36 be administratively unresolved so I can change it?

Thanks,
Matt

________________________________
From: Gary Cheng <cheng at jlab.org>
Sent: Wednesday, August 11, 2021 10:05 AM
To: Jared Martin <jared at jlab.org>; Matt Marchlik <marchlik at jlab.org>; Naeem Huque <huque at jlab.org>; John Fischer <fischer at jlab.org>
Cc: Ed Daly <edaly at jlab.org>; Jacob Harris <jharris at jlab.org>; pansophy <pansophy at jlab.org>; srfinv at jlab.org <srfinv at jlab.org>
Subject: SNS PPU Cold Mass 01 D3's SN and SNType

All,

The recently released D3 33 and 36 for PPU cold mass 01 have the same SN: PPU-01 and SNType: ID. These don't appear correct to me.

SRF spec/procedure PR-P-007 (attached) defines the format of S/Ns. So, to me, the SN for cold mass 01 should be 104211500-A002-A-001.
As to the SNType, CMASSN should be used.

The two specific D3 #33 & #36 address two issues associated with two types of parts, the G-10 isolators and FPC bellows, respectively. If a D3 is intended to address an issue with one certain part, e.g. only one of the four FPC bellows, then I think the D3 should use the SN for that specific bellows and SNType should be what we created for the FPC bellows.

Comments are welcome.

Gary
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