Verification of Process Changes (AS9100 clause 7.5.1.2)

RCW

Quite Involved in Discussions
#1
With regards to 7.5.1.2 Control of Production Process Changes....

I'm trying to get an idea on how to go about confirming "that the desired effect has been acheived without adverse effects to product conformity." A majority of my AS&D work is build-to-print so drawings aren't changed here. However we do have work instructions, which are embedded into our traveler for the assembly.

What would constitute a subsequent assessment? I'm assuming "hey, the part passed q.c." is not acceptable?

How do you address this part of the clause?
 
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Mikishots

Trusted Information Resource
#2
Re: Verifying Process Changes (AS9100 clause 7.5.1.2)

Very often, it ties in with first article inspection requirements, namely the determination of additional FAI requirements based on production process changes.

An example could be something like the following: A part was previously made on separate mills and lathes, but now you have a brand-spanking new 69 axis SuperTwist 2000 that can do it all in half the time. You have to prove out the process to show that it can meet the requirements of your drawings and other data.

Even something as innocuous as moving a machine or jig can warrant a review. Changing the sequence of operations can also trigger the requirements defined in subclause 7.5.1.2.
 
Last edited:

dsanabria

Quite Involved in Discussions
#3
With regards to 7.5.1.2 Control of Production Process Changes....

I'm trying to get an idea on how to go about confirming "that the desired effect has been acheived without adverse effects to product conformity." A majority of my AS&D work is build-to-print so drawings aren't changed here. However we do have work instructions, which are embedded into our traveler for the assembly.

What would constitute a subsequent assessment? I'm assuming "hey, the part passed q.c." is not acceptable?

How do you address this part of the clause?
Also think of changes to the router / shop traveler (skipping operations or doing out of sequence step) such as painting the area that needs to be NDT - extreme but I have seen it done. You might also look at performing Delta on parts that the software was changed - CNC upgrades that would affect form, fit or function.
 
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