Daddylynx,
This sounds like a classic example. Buy that engineer a beer (or 2). The blade root "wraps" around the area of the primary blade bolt inside the titanium fittings. This area has a potting compound added for a zero gap fit. This potting can eventually break down somewhat, usually after 3500 -5000 hours. Not a big deal for the blade shop to re-do. If I recall correctly, once upon a time it could be repaired by the operator if carried out 1/4 of the area at a time.
Regards,
Rigidhead