Definition Waiver - Definition

Marc

Hunkered Down for the Duration with a Mask on...
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#1
In a manufacturing environment, a request for waiver (RFW) is a request for authorization to accept an item which, during manufacture or after inspection, is found to depart from specified requirements, but nevertheless is considered suitable for use as is or after rework by an approved method.

From: Request for waiver - Wikipedia
 
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John Broomfield

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#2
Such a waiver (for “use as is” or “repair”) would be a design change. So is the waiver request routed through a competent design authority for review and approval?

Wikipedia source seems to have misused the term rework (back to the original spec) because that would not need a waiver.
 

Marc

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#3
Such a waiver (for “use as is” or “repair”) would be a design change. So is the waiver request routed through a competent design authority for review and approval?
My experience has been that a request for a waiver for either was first routed through a "Material Review Board" which always included a design team member who had reviewed and approved the change contributing to that aspect of the material review board process. Other MRB members were typically production, quality, often a customer representative (sometimes more than one), etc. The areas involved depended upon the specific request. I remember one where a certain bolt was not available in a specific alloy, but a stronger alloy than the design required was used temporarily because the cheaper, weaker alloy wasn't available and production needed them to keep shipping schedules.

Add in, "use as is" and "repair" are not design changes per se. They are temporary actions. Yes, the design authority has to approve the exception be it "use as is" or "repair", but it is rarely a formal design change intended to be permanent. That is not to say a waiver, for example, may not be directly related to a planned permanent design change.

Example: A contract/consultant position I once took involved a design change by a customer. The supplier required a waiver from the customer because the customer requested a "redline" running change to a print. The customer supplied a 6 month waiver while they got a final approved revised print. The customer did not get the print approved in time, so when the waiver expired, the customer started rejecting parts (which, of course, went on their supplier scorecard). It was a mess. The customer was a tier 1 automotive. Knowing that getting a new print could be next to impossible in a reasonable timeframe, the solution, if you want to call it that, was a series of waivers, a new one every 6 months for 2 years. Despite it being the customer's "fault", the demerits on the supplier scorecard were never (last I heard) removed AND the customer implemented an onsite visit by their quality department every 6 months because of the the problem with the supplier scorecard. Their visits were a joke - A 1 hour meeting and an expensive lunch after which the customer's quality rep went for golf or what ever. But, that is, or was, not unusual in automotive.

Wikipedia source seems to have misused the term rework (back to the original spec) because that would not need a waiver.
Well, it is Wikipedia...

Rework - Definition - Rework - Discussion. And rework definitions and related discussions or Definition of REWORK

Example: Hole in part is too small. Rework would be to simply re-drill the hole. And no - That would not need a waiver.

:2cents:

Oops - Forgot Repair: Definition - Repair - Definition

EDIT: Minor typos corrected.
 
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