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Inspection recommendation

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C

chrisl108

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I'm working on a 320, and found what looks to be a crack in crankshaft near the flange. Hopefully, the picture shows it. From what I read it seems a mag particle inspection is the way to go? I found that in older Lycoming service bulletin, when the flange lightening hole problem was going around..

Appreciate any thoughts, this forum knows a lot more than I do!
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