Originally Posted by
TURIN
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The QF32 incident .........
It wasn't a known design defect either, it was a manufacturering fault that was later discovered on several other engines worldwide after inspections. No gambling was involved. Quality control at RR however came under scrutiny, quite rightly.
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Re “No gambling was involved”.
I seem to recal RR knew about the problem and had a fix that that they had implemented in some engines, but rather than issue those fixed engines to operating aircraft they issued them to new build aircraft at first, thus it could be construed that they incorrectly decided an urgent fix to operational aircraft was not needed (arguably, a type of gamble).