Composite airframes have been around for a lot longer than that ! To the best of my knowlage the first composite repair to primary structure was carried out in the UK in 1965.
Composite gliders are around since the mid 50s and composite repair to primary structure are common business since the 60s. There are companies around that repair CFRP wings completely broken in several pieces for 25 years, and there is up to now no airframe loss attributed to a faulty repair. Did it myself, and the first time you do aerobatics in a glider where once the wing was in pueces is a bit on an interesting moment. Composite repair technology is known and field proven for decades.