MRB MECHANICAL LLC
there were no boards · no NCRs · no root cause analysis. A rejected part was either tossed or quietly repaired on the line · with no records. But as aviation · automotive and electronics grew more complex · the cost of guessing wrong went up. In the 1960s and 70s · large OEMs like Boeing and GE began formalizing “ · disposition meetings” · a hole is misaligned · or a batch doesn’t meet spec. Instead of just scrapping it · you stop and ask: Can we fix it · use it anyway · or send it back? MRB is that structured pause. It’s where engineers · quality · production · and sometimes even procurement meet to decide: scrap · rework · use as-is · how it works What it is Material review is the first gate. When a part doesn’t meet the design · tolerance
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2. R = Review board – who makes the call What it is The “Review Board” is the team that decides what happens to the nonconforming material. It’s not a theoretical board or some off-site committee – it’s usually a hands-on group of in-house engineers and production people who know the product and the process well enough to make the call. These people aren’t just reviewing paperwork. They’re often walking the floor, inspecting parts, cross-checking specs, and talking directly with machinists or as
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