I agree with David G's assesement - this should be a mandatory AD.

FWIW, I am the guy that reinforced Buck Garza's KC booms the day before GSW. We found a small delamination and crack in one of the booms but he was keeping an eye out and fortunately caught it before it became a flight risk. Buck does not fly high-G or transport his KC on the gear. He did have a gear-up not long before and that may have contributed/caused the crack (per BV).

The repair procedure and materials now listed on BV's Web site looks adequate. On Buck's we used four pieces (one per side) of 2 oz. carbon cloth, about 10" long and 2" wide (tapered) that covered the areas between the diagonal formers in the booms and extending past the formers by 1/2" or so. We used two pieces of 1.5 oz. crowsfoot weave E-glass, extending about 1" past the carbon, that completely wrapped around the booms, providing reinforcement of the top/bottom joint seams. This is way overkill but is completely bulletproof and we can now pick up the KC by the booms, transport it assembled, etc. without worries. I used West Systems resin. Total weight gain was about 4 oz. and could have been lighter if we had more time.

I have a second KC in the works now and will be doing the same to mine before first flight.

Barry