I would have escalated this and continued to escalate this as far as I could so that it would never have come back down - shit rolls downhill. I'm assuming you have detailed documentation of every conversation you had with the Wigs to prove you told them? They love to ignore shit until something bad happens, then they look for scapegoats so they don't take the heat for their sloth. If you're not doing that I suggest you start doing it, CYA. I work for a major corporate conglomerate and you'd better believe I do it every single day. The crap I find all the time out there that would mean being terminated and blackballed if it was ever blamed on me is staggering, but execs and managers just get transferred to a new section so they can screw that one up too - the Good Old Boys Club in action.

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I won't tell you where I work but I will tell you I'll never fly on an airplane ever again. I've seen the decisions made around here by execs who don't understand anything about what's going on and I don't trust that the same decisions are being made about aircraft components. You couldn't pay me enough to fly anymore.