Thanks Steve.

I have a few questions :
1. What then is classified as "standard" and what is "non-standard"?
2. Who is the Material Review Board (MRB)?
3. Since MIL-C-28809 no longer exist, are we allow to or can we develop an in-house workmanship, making
referral to an aboselete standard?

Regards - Wee Mei

"Sauer, Steven T." wrote:

> Hello Wee Mei,
> To my knowledge, the information that you are looking for does not exist in
> a replacement military specification nor other industry association
> documents.
> On one hand, the information contained in MIL-C-28809 was considered
> requirements for "standard" repair/modification.  Repair and modifications
> that did not fall within these requirements, "non-standard", were turned
> over to a Material Review Board (MRB) and dependent on contractual
> requirements may have included customer review and approval/disapproval.
> With today's technology and the ever changing end use environments,
> "standard" repairs should be reviewed by a MRB for issues related to
> quality, performance, reliability and maintainability of the deliverable
> product. The guidance information contained in MIL-C-28809 can be used to
> develop criteria for use by a MRB or better yet, used to develop an in-house
> procedure for standard repairs that defines specifics for your products.
> IPC-7721 (supercedes IPC-R-700) is widely accepted and used for repair and
> modification of electronic assemblies, but it does not contain "maximum
> allowable" criteria.
>
> Steve Sauer
>
> -----Original Message-----
> From: fullname [mailto:[log in to unmask]]
> Understand that MIL-C-28809 has been cancelled. However, there are two
> tables indicates in this mil-spec on the max. number allowed permitted
> for plated-thorugh hole repair and circuit repair. Can someone point to
> me where else can I find similar tables for repair under IPC standards?
>
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