Someone’s always gotta make a wisecrack.
D’oh!
On a serious note: spoke to an engineer today who opined about five weeks work to repair, but there are no parts yet apparently, Plus the aircraft has to be put in jigs which are uncommon and not very portable and of course one set of jigs might do one repair per month. My employer apparently has a set, but several aircraft to repair.
These cracks appearing so much earlier than the AD contemplates would indicate that eventually almost every NG will need at least one new set of forgings. Perhaps replacement will become a mandatory part of heavy overhaul.
I read that these forgings may have 0.008” oversized bolt holes. I wonder if tighter tolerances on the replacement parts will be a permanent fix?