Originally Posted by
atakacs
Does anyone have actual details as of WHAT is the matter ?
Seems to be, part of the mountings in the body at the tail end of the -7 and -8 are manufactured, deviating from the approved specifications. In plain English, I'd call that "hand-made", to save on special manufacturing tools/mechanisms.
In the past, other Boeing suppliers interpreted the prescribed CNC method as to be done "by handcraft" (in the end, the CNC machine input is, somehow, handmade too, so, just skip the CNS machine itself, saves money). I forgot, which part/airplane this was for. It does increase the manufacture tolerances (considerably).