[dgoodell]

Technically it was in the fan disc, and not a turbine blade. And while there was a defect, a big part of the problem was that an inspector most likely missed a crack during overhaul. The crack was present at a previous inspection, which they knew because there some fluorescent penetrant remaining in the defect.

I worked in a turbine engine component repair shop for 8 years. We had an NDT inspector fall asleep a lot in his booth and miss cracks. I’m pretty sure they ended up firing him. But maybe not as quick as they should have.