"Jay Honeck" wrote in message news:Y5hbb.533879$YN5.355122@sccrnsc01...
In fact, I can usually see the bondlines in the wing while in
flight, and you can bet any missing lines would get my attention
in a big hurry.

Just curious -- why are the bond-lines visible in flight?

When you're in flight, the lower pressure above the wing tends to
cause the skin to bulge up a bit, except where it's bonded to the
wing. My Cherokee 180 exhibits this behavior. In flight, you can
see the wing skin lifted slightly above the rivet line.

John Galban=====N4BQ (PA28-180)